./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8 --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 4074665f53184e0f9778b3e4e6ee9c58d8a047121518f9c126ceccd876afea36 --- 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-2329fc7 [2022-12-13 22:21:53,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:21:53,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:21:53,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:21:53,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:21:53,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:21:53,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:21:53,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:21:53,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:21:53,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:21:53,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:21:53,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:21:53,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:21:53,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:21:53,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:21:53,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:21:53,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:21:53,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:21:53,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:21:53,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:21:53,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:21:53,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:21:53,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:21:53,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:21:53,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:21:53,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:21:53,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:21:53,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:21:53,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:21:53,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:21:53,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:21:53,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:21:53,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:21:53,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:21:53,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:21:53,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:21:53,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:21:53,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:21:53,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:21:53,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:21:53,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:21:53,476 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 22:21:53,500 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:21:53,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:21:53,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:21:53,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:21:53,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:21:53,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:21:53,501 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:21:53,512 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 22:21:53,512 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 22:21:53,512 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 22:21:53,512 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 22:21:53,512 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 22:21:53,513 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 22:21:53,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:21:53,513 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:21:53,513 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:21:53,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:21:53,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:21:53,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:21:53,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 22:21:53,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 22:21:53,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 22:21:53,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:21:53,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:21:53,514 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 22:21:53,514 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:21:53,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 22:21:53,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:21:53,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:21:53,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:21:53,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:21:53,515 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 22:21:53,515 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_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4074665f53184e0f9778b3e4e6ee9c58d8a047121518f9c126ceccd876afea36 [2022-12-13 22:21:53,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:21:53,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:21:53,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:21:53,735 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:21:53,736 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:21:53,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2022-12-13 22:21:56,236 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:21:56,442 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:21:56,443 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2022-12-13 22:21:56,452 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/data/a0ba34e3c/32313de02b9c48d0872edaac3dacbc88/FLAG1a2d9bdc4 [2022-12-13 22:21:56,810 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/data/a0ba34e3c/32313de02b9c48d0872edaac3dacbc88 [2022-12-13 22:21:56,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:21:56,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:21:56,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:21:56,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:21:56,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:21:56,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:21:56" (1/1) ... [2022-12-13 22:21:56,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f25fc22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:56, skipping insertion in model container [2022-12-13 22:21:56,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:21:56" (1/1) ... [2022-12-13 22:21:56,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:21:56,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:21:57,006 WARN L237 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_a83714e7-3acc-461d-b6e6-74ffebeb1356/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c[12672,12685] [2022-12-13 22:21:57,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:21:57,034 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:21:57,070 WARN L237 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_a83714e7-3acc-461d-b6e6-74ffebeb1356/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c[12672,12685] [2022-12-13 22:21:57,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:21:57,093 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:21:57,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57 WrapperNode [2022-12-13 22:21:57,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:21:57,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:21:57,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:21:57,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:21:57,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57" (1/1) ... [2022-12-13 22:21:57,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57" (1/1) ... [2022-12-13 22:21:57,131 INFO L138 Inliner]: procedures = 59, calls = 104, calls flagged for inlining = 57, calls inlined = 87, statements flattened = 593 [2022-12-13 22:21:57,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:21:57,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:21:57,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:21:57,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:21:57,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57" (1/1) ... [2022-12-13 22:21:57,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57" (1/1) ... [2022-12-13 22:21:57,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57" (1/1) ... [2022-12-13 22:21:57,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57" (1/1) ... [2022-12-13 22:21:57,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57" (1/1) ... [2022-12-13 22:21:57,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57" (1/1) ... [2022-12-13 22:21:57,153 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57" (1/1) ... [2022-12-13 22:21:57,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57" (1/1) ... [2022-12-13 22:21:57,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:21:57,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:21:57,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:21:57,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:21:57,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57" (1/1) ... [2022-12-13 22:21:57,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 22:21:57,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:21:57,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 22:21:57,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 22:21:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:21:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:21:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:21:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:21:57,281 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:21:57,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:21:57,601 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:21:57,609 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:21:57,609 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 22:21:57,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:21:57 BoogieIcfgContainer [2022-12-13 22:21:57,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:21:57,613 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 22:21:57,613 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 22:21:57,617 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 22:21:57,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:21:57,618 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 10:21:56" (1/3) ... [2022-12-13 22:21:57,619 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@245490ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:21:57, skipping insertion in model container [2022-12-13 22:21:57,619 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:21:57,619 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:57" (2/3) ... [2022-12-13 22:21:57,619 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@245490ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:21:57, skipping insertion in model container [2022-12-13 22:21:57,620 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 22:21:57,620 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:21:57" (3/3) ... [2022-12-13 22:21:57,621 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2022-12-13 22:21:57,674 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 22:21:57,674 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 22:21:57,674 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 22:21:57,674 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 22:21:57,674 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 22:21:57,674 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 22:21:57,674 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 22:21:57,675 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 22:21:57,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 177 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 176 states have internal predecessors, (241), 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) [2022-12-13 22:21:57,701 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2022-12-13 22:21:57,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:57,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:57,706 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:57,707 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] [2022-12-13 22:21:57,707 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 22:21:57,707 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 177 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 176 states have internal predecessors, (241), 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) [2022-12-13 22:21:57,715 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2022-12-13 22:21:57,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:57,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:57,716 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:57,716 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] [2022-12-13 22:21:57,720 INFO L748 eck$LassoCheckResult]: Stem: 41#$Ultimate##0true 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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 54#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 35#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 145#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 127#valid_product_returnLabel#1true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 42#L508true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 97#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 160#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 149#L702-2true [2022-12-13 22:21:57,721 INFO L750 eck$LassoCheckResult]: Loop: 149#L702-2true assume !false; 19#L703true assume test_~splverifierCounter~0#1 < 4; 72#L704true test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 88#L712true assume !(0 != test_~tmp~5#1); 74#L712-2true test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 83#L722true assume !(0 != test_~tmp___0~1#1); 177#L722-2true test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 38#L732true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 61#L740true assume !(0 != test_~tmp___1~0#1); 40#L740-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 156#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 111#__utac_acc__Specification5_spec__2_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 63#L773true assume !(0 != ~pumpRunning~0); 33#L773-2true assume !(0 != ~systemActive~0); 13#L780-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 84#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 31#L560true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 142#L560-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 85#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 149#L702-2true [2022-12-13 22:21:57,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:57,726 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-12-13 22:21:57,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:57,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859774771] [2022-12-13 22:21:57,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:57,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:57,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:57,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:57,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:57,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1925616167, now seen corresponding path program 1 times [2022-12-13 22:21:57,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:57,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219537514] [2022-12-13 22:21:57,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:57,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:57,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:57,868 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:57,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:57,870 INFO L85 PathProgramCache]: Analyzing trace with hash -495867824, now seen corresponding path program 1 times [2022-12-13 22:21:57,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:57,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374928524] [2022-12-13 22:21:57,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:57,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:58,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:21:58,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:58,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374928524] [2022-12-13 22:21:58,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374928524] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:58,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:58,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:21:58,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684404534] [2022-12-13 22:21:58,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:58,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:58,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:21:58,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:21:58,232 INFO L87 Difference]: Start difference. First operand has 177 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 176 states have internal predecessors, (241), 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 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-12-13 22:21:58,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:21:58,349 INFO L93 Difference]: Finished difference Result 577 states and 759 transitions. [2022-12-13 22:21:58,350 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 577 states and 759 transitions. [2022-12-13 22:21:58,356 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 376 [2022-12-13 22:21:58,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 577 states to 537 states and 719 transitions. [2022-12-13 22:21:58,363 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 537 [2022-12-13 22:21:58,364 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 537 [2022-12-13 22:21:58,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 537 states and 719 transitions. [2022-12-13 22:21:58,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:58,367 INFO L218 hiAutomatonCegarLoop]: Abstraction has 537 states and 719 transitions. [2022-12-13 22:21:58,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states and 719 transitions. [2022-12-13 22:21:58,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 225. [2022-12-13 22:21:58,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 225 states have (on average 1.3333333333333333) internal successors, (300), 224 states have internal predecessors, (300), 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) [2022-12-13 22:21:58,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 300 transitions. [2022-12-13 22:21:58,397 INFO L240 hiAutomatonCegarLoop]: Abstraction has 225 states and 300 transitions. [2022-12-13 22:21:58,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:21:58,402 INFO L428 stractBuchiCegarLoop]: Abstraction has 225 states and 300 transitions. [2022-12-13 22:21:58,402 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 22:21:58,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states and 300 transitions. [2022-12-13 22:21:58,405 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 157 [2022-12-13 22:21:58,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:58,405 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:58,406 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:58,406 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] [2022-12-13 22:21:58,406 INFO L748 eck$LassoCheckResult]: Stem: 839#$Ultimate##0 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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 840#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 829#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 830#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 924#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 841#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 842#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 903#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 893#L702-2 [2022-12-13 22:21:58,407 INFO L750 eck$LassoCheckResult]: Loop: 893#L702-2 assume !false; 802#L703 assume test_~splverifierCounter~0#1 < 4; 803#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 875#L712 assume !(0 != test_~tmp~5#1); 876#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 877#L722 assume !(0 != test_~tmp___0~1#1); 891#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 833#L732 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 834#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 837#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 838#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 915#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 863#L773 assume !(0 != ~pumpRunning~0); 825#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 826#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 926#L805-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 772#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 773#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 845#L831-1 assume { :end_inline_processEnvironment } true; 791#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 792#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 821#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 815#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 892#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 893#L702-2 [2022-12-13 22:21:58,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:58,407 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-12-13 22:21:58,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:58,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118968636] [2022-12-13 22:21:58,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:58,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:58,419 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:58,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:58,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:58,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1569690533, now seen corresponding path program 1 times [2022-12-13 22:21:58,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:58,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365144317] [2022-12-13 22:21:58,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:58,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:21:58,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:58,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365144317] [2022-12-13 22:21:58,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365144317] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:58,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:58,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:21:58,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484097196] [2022-12-13 22:21:58,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:58,450 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 22:21:58,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:58,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:21:58,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:21:58,451 INFO L87 Difference]: Start difference. First operand 225 states and 300 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:58,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:21:58,515 INFO L93 Difference]: Finished difference Result 285 states and 364 transitions. [2022-12-13 22:21:58,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 285 states and 364 transitions. [2022-12-13 22:21:58,519 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 203 [2022-12-13 22:21:58,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 285 states to 285 states and 364 transitions. [2022-12-13 22:21:58,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 285 [2022-12-13 22:21:58,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 285 [2022-12-13 22:21:58,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 364 transitions. [2022-12-13 22:21:58,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:58,523 INFO L218 hiAutomatonCegarLoop]: Abstraction has 285 states and 364 transitions. [2022-12-13 22:21:58,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 364 transitions. [2022-12-13 22:21:58,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-12-13 22:21:58,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.2771929824561403) internal successors, (364), 284 states have internal predecessors, (364), 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) [2022-12-13 22:21:58,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 364 transitions. [2022-12-13 22:21:58,531 INFO L240 hiAutomatonCegarLoop]: Abstraction has 285 states and 364 transitions. [2022-12-13 22:21:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:21:58,532 INFO L428 stractBuchiCegarLoop]: Abstraction has 285 states and 364 transitions. [2022-12-13 22:21:58,532 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 22:21:58,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 285 states and 364 transitions. [2022-12-13 22:21:58,533 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 203 [2022-12-13 22:21:58,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:58,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:58,534 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:58,534 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, 1] [2022-12-13 22:21:58,534 INFO L748 eck$LassoCheckResult]: Stem: 1352#$Ultimate##0 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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1353#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1342#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1343#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1456#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1354#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1355#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1427#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1475#L702-2 [2022-12-13 22:21:58,534 INFO L750 eck$LassoCheckResult]: Loop: 1475#L702-2 assume !false; 1543#L703 assume test_~splverifierCounter~0#1 < 4; 1542#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 1541#L712 assume !(0 != test_~tmp~5#1); 1540#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1413#L722 assume !(0 != test_~tmp___0~1#1); 1415#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1346#L732 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1347#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1350#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 1351#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 1443#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1444#L773 assume !(0 != ~pumpRunning~0); 1338#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1339#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1457#L805-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1445#L670-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1371#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 1372#L933-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1441#L933-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 1459#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 1309#L809-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1310#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1364#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1360#L831-1 assume { :end_inline_processEnvironment } true; 1302#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1303#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 1410#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 1545#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1544#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1475#L702-2 [2022-12-13 22:21:58,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:58,535 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-12-13 22:21:58,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:58,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024172395] [2022-12-13 22:21:58,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:58,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:58,541 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:58,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:58,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:58,548 INFO L85 PathProgramCache]: Analyzing trace with hash 746500529, now seen corresponding path program 1 times [2022-12-13 22:21:58,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:58,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294085552] [2022-12-13 22:21:58,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:58,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:58,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:21:58,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:58,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294085552] [2022-12-13 22:21:58,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294085552] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:58,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:58,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:21:58,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147406787] [2022-12-13 22:21:58,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:58,584 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 22:21:58,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:58,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:21:58,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:21:58,585 INFO L87 Difference]: Start difference. First operand 285 states and 364 transitions. cyclomatic complexity: 82 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-12-13 22:21:58,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:21:58,666 INFO L93 Difference]: Finished difference Result 815 states and 1028 transitions. [2022-12-13 22:21:58,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 815 states and 1028 transitions. [2022-12-13 22:21:58,675 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 593 [2022-12-13 22:21:58,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 815 states to 815 states and 1028 transitions. [2022-12-13 22:21:58,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 815 [2022-12-13 22:21:58,683 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 815 [2022-12-13 22:21:58,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 815 states and 1028 transitions. [2022-12-13 22:21:58,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:58,686 INFO L218 hiAutomatonCegarLoop]: Abstraction has 815 states and 1028 transitions. [2022-12-13 22:21:58,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states and 1028 transitions. [2022-12-13 22:21:58,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 297. [2022-12-13 22:21:58,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.265993265993266) internal successors, (376), 296 states have internal predecessors, (376), 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) [2022-12-13 22:21:58,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 376 transitions. [2022-12-13 22:21:58,701 INFO L240 hiAutomatonCegarLoop]: Abstraction has 297 states and 376 transitions. [2022-12-13 22:21:58,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:21:58,702 INFO L428 stractBuchiCegarLoop]: Abstraction has 297 states and 376 transitions. [2022-12-13 22:21:58,702 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 22:21:58,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 376 transitions. [2022-12-13 22:21:58,703 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2022-12-13 22:21:58,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:58,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:58,704 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:58,704 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, 1] [2022-12-13 22:21:58,704 INFO L748 eck$LassoCheckResult]: Stem: 2465#$Ultimate##0 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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2466#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2455#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2456#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 2571#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 2467#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2468#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2540#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2591#L702-2 [2022-12-13 22:21:58,704 INFO L750 eck$LassoCheckResult]: Loop: 2591#L702-2 assume !false; 2426#L703 assume test_~splverifierCounter~0#1 < 4; 2427#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 2509#L712 assume !(0 != test_~tmp~5#1); 2510#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2511#L722 assume !(0 != test_~tmp___0~1#1); 2530#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2594#L732 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 2656#L740 assume !(0 != test_~tmp___1~0#1); 2508#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 2655#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 2654#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2495#L773 assume !(0 != ~pumpRunning~0); 2451#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2452#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2573#L805-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2559#L670-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2560#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 2554#L933-3 assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~2#1 := 1; 2555#L933-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 2574#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 2423#L809-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2424#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2478#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2538#L831-1 assume { :end_inline_processEnvironment } true; 2653#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2675#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 2673#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 2670#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2669#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2591#L702-2 [2022-12-13 22:21:58,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:58,705 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-12-13 22:21:58,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:58,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746500704] [2022-12-13 22:21:58,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:58,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:58,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:58,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:58,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:58,717 INFO L85 PathProgramCache]: Analyzing trace with hash -636518239, now seen corresponding path program 1 times [2022-12-13 22:21:58,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:58,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132892169] [2022-12-13 22:21:58,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:58,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:58,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:21:58,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:58,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132892169] [2022-12-13 22:21:58,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132892169] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:58,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:58,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:21:58,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224388768] [2022-12-13 22:21:58,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:58,764 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 22:21:58,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:58,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:21:58,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:21:58,765 INFO L87 Difference]: Start difference. First operand 297 states and 376 transitions. cyclomatic complexity: 82 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2022-12-13 22:21:58,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:21:58,870 INFO L93 Difference]: Finished difference Result 966 states and 1222 transitions. [2022-12-13 22:21:58,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 966 states and 1222 transitions. [2022-12-13 22:21:58,875 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 712 [2022-12-13 22:21:58,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 966 states to 966 states and 1222 transitions. [2022-12-13 22:21:58,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 966 [2022-12-13 22:21:58,879 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 966 [2022-12-13 22:21:58,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 966 states and 1222 transitions. [2022-12-13 22:21:58,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:58,880 INFO L218 hiAutomatonCegarLoop]: Abstraction has 966 states and 1222 transitions. [2022-12-13 22:21:58,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states and 1222 transitions. [2022-12-13 22:21:58,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 315. [2022-12-13 22:21:58,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 315 states have (on average 1.2507936507936508) internal successors, (394), 314 states have internal predecessors, (394), 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) [2022-12-13 22:21:58,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 394 transitions. [2022-12-13 22:21:58,887 INFO L240 hiAutomatonCegarLoop]: Abstraction has 315 states and 394 transitions. [2022-12-13 22:21:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:21:58,887 INFO L428 stractBuchiCegarLoop]: Abstraction has 315 states and 394 transitions. [2022-12-13 22:21:58,887 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 22:21:58,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 315 states and 394 transitions. [2022-12-13 22:21:58,889 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2022-12-13 22:21:58,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:58,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:58,889 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:58,889 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, 1] [2022-12-13 22:21:58,889 INFO L748 eck$LassoCheckResult]: Stem: 3741#$Ultimate##0 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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 3742#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 3731#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3732#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 3850#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 3743#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 3744#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3817#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3872#L702-2 [2022-12-13 22:21:58,889 INFO L750 eck$LassoCheckResult]: Loop: 3872#L702-2 assume !false; 3701#L703 assume test_~splverifierCounter~0#1 < 4; 3702#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 3786#L712 assume !(0 != test_~tmp~5#1); 3787#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 3788#L722 assume !(0 != test_~tmp___0~1#1); 3876#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 3877#L732 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3736#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 3771#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 3869#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 3870#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3772#L773 assume !(0 != ~pumpRunning~0); 3773#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 3851#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 3852#L805-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 3837#L670-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 3761#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 3762#L933-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 3884#L933-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 3883#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 3881#L809-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3754#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 3755#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3749#L831-1 assume { :end_inline_processEnvironment } true; 3750#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 3968#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 3966#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 3960#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3959#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3872#L702-2 [2022-12-13 22:21:58,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:58,890 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-12-13 22:21:58,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:58,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050846376] [2022-12-13 22:21:58,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:58,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:58,894 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:58,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:58,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:58,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1757617779, now seen corresponding path program 1 times [2022-12-13 22:21:58,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:58,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915117554] [2022-12-13 22:21:58,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:58,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:21:58,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:58,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915117554] [2022-12-13 22:21:58,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915117554] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:58,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:58,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:21:58,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372049296] [2022-12-13 22:21:58,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:58,945 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 22:21:58,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:58,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:21:58,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:21:58,946 INFO L87 Difference]: Start difference. First operand 315 states and 394 transitions. cyclomatic complexity: 82 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2022-12-13 22:21:59,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:21:59,096 INFO L93 Difference]: Finished difference Result 1255 states and 1543 transitions. [2022-12-13 22:21:59,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1255 states and 1543 transitions. [2022-12-13 22:21:59,103 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 879 [2022-12-13 22:21:59,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1255 states to 1255 states and 1543 transitions. [2022-12-13 22:21:59,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1255 [2022-12-13 22:21:59,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1255 [2022-12-13 22:21:59,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1255 states and 1543 transitions. [2022-12-13 22:21:59,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:59,109 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1255 states and 1543 transitions. [2022-12-13 22:21:59,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states and 1543 transitions. [2022-12-13 22:21:59,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 577. [2022-12-13 22:21:59,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 577 states have (on average 1.2322357019064125) internal successors, (711), 576 states have internal predecessors, (711), 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) [2022-12-13 22:21:59,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 711 transitions. [2022-12-13 22:21:59,119 INFO L240 hiAutomatonCegarLoop]: Abstraction has 577 states and 711 transitions. [2022-12-13 22:21:59,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 22:21:59,120 INFO L428 stractBuchiCegarLoop]: Abstraction has 577 states and 711 transitions. [2022-12-13 22:21:59,120 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 22:21:59,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 577 states and 711 transitions. [2022-12-13 22:21:59,121 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 416 [2022-12-13 22:21:59,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 22:21:59,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 22:21:59,122 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:59,122 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, 1, 1, 1] [2022-12-13 22:21:59,122 INFO L748 eck$LassoCheckResult]: Stem: 5332#$Ultimate##0 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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 5333#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 5321#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5322#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 5459#valid_product_returnLabel#1 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 5334#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 5335#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 5422#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5491#L702-2 [2022-12-13 22:21:59,122 INFO L750 eck$LassoCheckResult]: Loop: 5491#L702-2 assume !false; 5812#L703 assume test_~splverifierCounter~0#1 < 4; 5813#L704 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 5810#L712 assume !(0 != test_~tmp~5#1); 5807#L712-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 5804#L722 assume !(0 != test_~tmp___0~1#1); 5801#L722-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 5800#L732 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 5762#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 5795#L740-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret28#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 5827#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret28#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret28#1;havoc __utac_acc__Specification5_spec__2_#t~ret28#1; 5826#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 5822#L773 assume !(0 != ~pumpRunning~0); 5317#L773-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 5318#L831 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 5611#L805-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 5609#L670-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 5446#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1; 5545#L933-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 5540#L933-5 isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1; 5526#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 5522#L809-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5345#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 5346#L805-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5356#L831-1 assume { :end_inline_processEnvironment } true; 5821#L780-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret29#1, __utac_acc__Specification5_spec__3_#t~ret30#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 5820#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret29#1;havoc __utac_acc__Specification5_spec__3_#t~ret29#1; 5819#L560 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1; 5818#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret30#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret30#1;havoc __utac_acc__Specification5_spec__3_#t~ret30#1; 5817#L564 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 5815#L560-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 5814#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 5491#L702-2 [2022-12-13 22:21:59,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:59,123 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 6 times [2022-12-13 22:21:59,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:59,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85074277] [2022-12-13 22:21:59,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:59,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:59,127 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:59,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:59,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:59,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1129442222, now seen corresponding path program 1 times [2022-12-13 22:21:59,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:59,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375186978] [2022-12-13 22:21:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:59,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:59,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:59,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:59,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:59,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1725999767, now seen corresponding path program 1 times [2022-12-13 22:21:59,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:59,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686051832] [2022-12-13 22:21:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:59,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:59,148 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:59,156 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:21:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:59,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:21:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:21:59,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 10:21:59 BoogieIcfgContainer [2022-12-13 22:21:59,997 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 22:21:59,997 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:21:59,997 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:21:59,998 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:21:59,998 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:21:57" (3/4) ... [2022-12-13 22:22:00,000 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 22:22:00,033 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:22:00,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:22:00,034 INFO L158 Benchmark]: Toolchain (without parser) took 3219.76ms. Allocated memory was 163.6MB in the beginning and 232.8MB in the end (delta: 69.2MB). Free memory was 126.6MB in the beginning and 188.8MB in the end (delta: -62.2MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-12-13 22:22:00,034 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:22:00,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.28ms. Allocated memory is still 163.6MB. Free memory was 126.6MB in the beginning and 107.9MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 22:22:00,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.86ms. Allocated memory is still 163.6MB. Free memory was 107.9MB in the beginning and 104.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:22:00,035 INFO L158 Benchmark]: Boogie Preprocessor took 24.45ms. Allocated memory is still 163.6MB. Free memory was 104.3MB in the beginning and 102.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:22:00,036 INFO L158 Benchmark]: RCFGBuilder took 454.62ms. Allocated memory is still 163.6MB. Free memory was 102.2MB in the beginning and 78.2MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 22:22:00,036 INFO L158 Benchmark]: BuchiAutomizer took 2384.22ms. Allocated memory was 163.6MB in the beginning and 232.8MB in the end (delta: 69.2MB). Free memory was 77.7MB in the beginning and 191.9MB in the end (delta: -114.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:22:00,036 INFO L158 Benchmark]: Witness Printer took 36.23ms. Allocated memory is still 232.8MB. Free memory was 191.9MB in the beginning and 188.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:22:00,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.28ms. Allocated memory is still 163.6MB. Free memory was 126.6MB in the beginning and 107.9MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.86ms. Allocated memory is still 163.6MB. Free memory was 107.9MB in the beginning and 104.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.45ms. Allocated memory is still 163.6MB. Free memory was 104.3MB in the beginning and 102.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 454.62ms. Allocated memory is still 163.6MB. Free memory was 102.2MB in the beginning and 78.2MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 2384.22ms. Allocated memory was 163.6MB in the beginning and 232.8MB in the end (delta: 69.2MB). Free memory was 77.7MB in the beginning and 191.9MB in the end (delta: -114.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.23ms. Allocated memory is still 232.8MB. Free memory was 191.9MB in the beginning and 188.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 577 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 2159 StatesRemovedByMinimization, 4 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, 3657 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3657 mSDsluCounter, 5301 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3756 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 386 IncrementalHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 1545 mSDtfsCounter, 386 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc1 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: 702]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L533] int switchedOnBeforeTS ; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L763] int pumpRunning = 0; [L764] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L1012] int retValue_acc ; [L1015] retValue_acc = 1 [L1016] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification5_spec__1() [L538] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L489] RET __utac_acc__Specification5_spec__1() [L490] CALL test() [L693] int splverifierCounter ; [L694] int tmp ; [L695] int tmp___0 ; [L696] int tmp___1 ; [L697] int tmp___2 ; [L700] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L702] COND TRUE 1 [L704] COND TRUE splverifierCounter < 4 [L710] tmp = __VERIFIER_nondet_int() [L712] COND FALSE !(\read(tmp)) [L720] tmp___0 = __VERIFIER_nondet_int() [L722] COND FALSE !(\read(tmp___0)) [L730] tmp___2 = __VERIFIER_nondet_int() [L732] COND TRUE \read(tmp___2) [L734] CALL startSystem() [L981] systemActive = 1 [L734] RET startSystem() [L749] CALL timeShift() [L771] CALL __utac_acc__Specification5_spec__2() [L547] CALL, EXPR isPumpRunning() [L880] int retValue_acc ; [L883] retValue_acc = pumpRunning [L884] return (retValue_acc); [L547] RET, EXPR isPumpRunning() [L547] switchedOnBeforeTS = isPumpRunning() [L771] RET __utac_acc__Specification5_spec__2() [L773] COND FALSE !(\read(pumpRunning)) [L780] COND TRUE \read(systemActive) [L782] CALL processEnvironment() [L828] int tmp ; [L831] COND FALSE !(\read(pumpRunning)) [L846] CALL processEnvironment__wrappee__highWaterSensor() [L802] int tmp ; [L805] COND TRUE ! pumpRunning [L807] CALL, EXPR isHighWaterLevel() [L925] int retValue_acc ; [L926] int tmp ; [L927] int tmp___0 ; [L931] CALL, EXPR isHighWaterSensorDry() [L667] int retValue_acc ; [L670] COND TRUE waterLevel < 2 [L671] retValue_acc = 1 [L672] return (retValue_acc); [L931] RET, EXPR isHighWaterSensorDry() [L931] tmp = isHighWaterSensorDry() [L933] COND TRUE \read(tmp) [L934] tmp___0 = 0 [L938] retValue_acc = tmp___0 [L939] return (retValue_acc); [L807] RET, EXPR isHighWaterLevel() [L807] tmp = isHighWaterLevel() [L809] COND FALSE !(\read(tmp)) [L815] FCALL processEnvironment__wrappee__base() [L846] RET processEnvironment__wrappee__highWaterSensor() [L782] RET processEnvironment() [L788] CALL __utac_acc__Specification5_spec__3() [L553] int tmp ; [L554] int tmp___0 ; [L558] CALL, EXPR getWaterLevel() [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); [L558] RET, EXPR getWaterLevel() [L558] tmp = getWaterLevel() [L560] COND TRUE tmp != 2 [L562] CALL, EXPR isPumpRunning() [L880] int retValue_acc ; [L883] retValue_acc = pumpRunning [L884] return (retValue_acc); [L562] RET, EXPR isPumpRunning() [L562] tmp___0 = isPumpRunning() [L564] COND FALSE !(\read(tmp___0)) [L788] RET __utac_acc__Specification5_spec__3() [L749] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 702]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L533] int switchedOnBeforeTS ; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L763] int pumpRunning = 0; [L764] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L1012] int retValue_acc ; [L1015] retValue_acc = 1 [L1016] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification5_spec__1() [L538] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L489] RET __utac_acc__Specification5_spec__1() [L490] CALL test() [L693] int splverifierCounter ; [L694] int tmp ; [L695] int tmp___0 ; [L696] int tmp___1 ; [L697] int tmp___2 ; [L700] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L702] COND TRUE 1 [L704] COND TRUE splverifierCounter < 4 [L710] tmp = __VERIFIER_nondet_int() [L712] COND FALSE !(\read(tmp)) [L720] tmp___0 = __VERIFIER_nondet_int() [L722] COND FALSE !(\read(tmp___0)) [L730] tmp___2 = __VERIFIER_nondet_int() [L732] COND TRUE \read(tmp___2) [L734] CALL startSystem() [L981] systemActive = 1 [L734] RET startSystem() [L749] CALL timeShift() [L771] CALL __utac_acc__Specification5_spec__2() [L547] CALL, EXPR isPumpRunning() [L880] int retValue_acc ; [L883] retValue_acc = pumpRunning [L884] return (retValue_acc); [L547] RET, EXPR isPumpRunning() [L547] switchedOnBeforeTS = isPumpRunning() [L771] RET __utac_acc__Specification5_spec__2() [L773] COND FALSE !(\read(pumpRunning)) [L780] COND TRUE \read(systemActive) [L782] CALL processEnvironment() [L828] int tmp ; [L831] COND FALSE !(\read(pumpRunning)) [L846] CALL processEnvironment__wrappee__highWaterSensor() [L802] int tmp ; [L805] COND TRUE ! pumpRunning [L807] CALL, EXPR isHighWaterLevel() [L925] int retValue_acc ; [L926] int tmp ; [L927] int tmp___0 ; [L931] CALL, EXPR isHighWaterSensorDry() [L667] int retValue_acc ; [L670] COND TRUE waterLevel < 2 [L671] retValue_acc = 1 [L672] return (retValue_acc); [L931] RET, EXPR isHighWaterSensorDry() [L931] tmp = isHighWaterSensorDry() [L933] COND TRUE \read(tmp) [L934] tmp___0 = 0 [L938] retValue_acc = tmp___0 [L939] return (retValue_acc); [L807] RET, EXPR isHighWaterLevel() [L807] tmp = isHighWaterLevel() [L809] COND FALSE !(\read(tmp)) [L815] FCALL processEnvironment__wrappee__base() [L846] RET processEnvironment__wrappee__highWaterSensor() [L782] RET processEnvironment() [L788] CALL __utac_acc__Specification5_spec__3() [L553] int tmp ; [L554] int tmp___0 ; [L558] CALL, EXPR getWaterLevel() [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); [L558] RET, EXPR getWaterLevel() [L558] tmp = getWaterLevel() [L560] COND TRUE tmp != 2 [L562] CALL, EXPR isPumpRunning() [L880] int retValue_acc ; [L883] retValue_acc = pumpRunning [L884] return (retValue_acc); [L562] RET, EXPR isPumpRunning() [L562] tmp___0 = isPumpRunning() [L564] COND FALSE !(\read(tmp___0)) [L788] RET __utac_acc__Specification5_spec__3() [L749] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 22:22:00,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83714e7-3acc-461d-b6e6-74ffebeb1356/bin/uautomizer-uyxdKDjOR8/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)