./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b 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_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro --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 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 --- 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-8393723 [2022-11-18 19:32:54,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:32:54,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:32:54,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:32:54,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:32:54,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:32:54,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:32:54,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:32:54,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:32:54,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:32:54,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:32:54,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:32:54,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:32:54,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:32:54,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:32:54,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:32:54,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:32:54,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:32:54,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:32:54,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:32:54,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:32:54,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:32:54,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:32:54,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:32:54,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:32:54,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:32:54,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:32:54,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:32:54,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:32:54,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:32:54,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:32:54,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:32:54,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:32:54,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:32:54,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:32:54,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:32:54,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:32:54,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:32:54,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:32:54,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:32:54,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:32:54,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 19:32:54,198 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:32:54,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:32:54,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:32:54,200 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:32:54,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:32:54,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:32:54,201 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:32:54,202 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 19:32:54,202 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 19:32:54,202 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 19:32:54,203 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 19:32:54,203 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 19:32:54,204 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 19:32:54,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:32:54,204 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:32:54,204 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:32:54,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:32:54,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:32:54,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:32:54,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 19:32:54,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 19:32:54,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 19:32:54,206 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:32:54,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:32:54,206 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 19:32:54,206 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:32:54,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 19:32:54,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:32:54,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:32:54,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:32:54,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:32:54,210 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 19:32:54,210 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_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 [2022-11-18 19:32:54,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:32:54,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:32:54,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:32:54,540 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:32:54,541 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:32:54,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2022-11-18 19:32:54,622 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/data/c04b872cc/d0859793c5a54866ab86f9150b747cc8/FLAG6ffa228c8 [2022-11-18 19:32:55,256 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:32:55,257 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2022-11-18 19:32:55,282 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/data/c04b872cc/d0859793c5a54866ab86f9150b747cc8/FLAG6ffa228c8 [2022-11-18 19:32:55,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/data/c04b872cc/d0859793c5a54866ab86f9150b747cc8 [2022-11-18 19:32:55,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:32:55,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:32:55,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:32:55,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:32:55,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:32:55,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:55" (1/1) ... [2022-11-18 19:32:55,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86e31e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:55, skipping insertion in model container [2022-11-18 19:32:55,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:55" (1/1) ... [2022-11-18 19:32:55,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:32:55,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:32:55,873 WARN L234 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_64e85432-225e-40c6-905f-a17221947b6c/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2022-11-18 19:32:56,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:32:56,075 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:32:56,105 WARN L234 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_64e85432-225e-40c6-905f-a17221947b6c/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2022-11-18 19:32:56,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:32:56,206 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:32:56,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56 WrapperNode [2022-11-18 19:32:56,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:32:56,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:32:56,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:32:56,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:32:56,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,280 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 57, calls inlined = 104, statements flattened = 698 [2022-11-18 19:32:56,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:32:56,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:32:56,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:32:56,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:32:56,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,319 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:32:56,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:32:56,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:32:56,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:32:56,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (1/1) ... [2022-11-18 19:32:56,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:32:56,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:32:56,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:32:56,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 19:32:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:32:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:32:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:32:56,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:32:56,539 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:32:56,542 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:32:57,357 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:32:57,367 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:32:57,368 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 19:32:57,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:57 BoogieIcfgContainer [2022-11-18 19:32:57,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:32:57,372 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 19:32:57,372 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 19:32:57,377 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 19:32:57,377 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:32:57,378 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 07:32:55" (1/3) ... [2022-11-18 19:32:57,379 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38a072c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:32:57, skipping insertion in model container [2022-11-18 19:32:57,379 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:32:57,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:56" (2/3) ... [2022-11-18 19:32:57,380 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38a072c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:32:57, skipping insertion in model container [2022-11-18 19:32:57,380 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:32:57,380 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:57" (3/3) ... [2022-11-18 19:32:57,382 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2022-11-18 19:32:57,476 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 19:32:57,485 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 19:32:57,486 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 19:32:57,486 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 19:32:57,486 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 19:32:57,486 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 19:32:57,486 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 19:32:57,487 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 19:32:57,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:57,556 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2022-11-18 19:32:57,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:32:57,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:32:57,564 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:57,565 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:57,565 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 19:32:57,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:57,575 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2022-11-18 19:32:57,576 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:32:57,576 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:32:57,577 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:57,577 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:57,583 INFO L748 eck$LassoCheckResult]: Stem: 185#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 121#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 54#L843true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 18#L836true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 153#L851true main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 28#L441true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 78#L413true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 100#L863true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 118#L297-2true [2022-11-18 19:32:57,584 INFO L750 eck$LassoCheckResult]: Loop: 118#L297-2true assume !false; 108#L298true assume test_~splverifierCounter~0#1 < 4; 37#L299true test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 149#L307true assume !(0 != test_~tmp~4#1); 21#L307-2true test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 89#L317true assume !(0 != test_~tmp___0~1#1); 42#L317-2true test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 99#L327true assume 0 != test_~tmp___2~0#1; 143#L333-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 178#L209true __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 38#L873true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 187#L81true assume !(0 != ~pumpRunning~0); 163#L81-2true assume !(0 != ~systemActive~0); 73#L88-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 92#L981true __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 104#L884true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 50#L884-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 169#L98true assume { :end_inline_timeShift } true; 118#L297-2true [2022-11-18 19:32:57,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:57,591 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-11-18 19:32:57,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:57,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011878049] [2022-11-18 19:32:57,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:57,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:57,700 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:32:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:57,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:32:57,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:57,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1358986284, now seen corresponding path program 1 times [2022-11-18 19:32:57,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:57,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850424488] [2022-11-18 19:32:57,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:57,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:57,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:32:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:57,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:32:57,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:57,768 INFO L85 PathProgramCache]: Analyzing trace with hash 19633877, now seen corresponding path program 1 times [2022-11-18 19:32:57,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:57,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939973350] [2022-11-18 19:32:57,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:57,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:58,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:32:58,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:58,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939973350] [2022-11-18 19:32:58,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939973350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:58,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:32:58,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:32:58,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338342564] [2022-11-18 19:32:58,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:58,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:58,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:32:58,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:32:58,219 INFO L87 Difference]: Start difference. First operand has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 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 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:58,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:58,420 INFO L93 Difference]: Finished difference Result 447 states and 582 transitions. [2022-11-18 19:32:58,422 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 447 states and 582 transitions. [2022-11-18 19:32:58,433 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 289 [2022-11-18 19:32:58,441 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 447 states to 417 states and 552 transitions. [2022-11-18 19:32:58,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 417 [2022-11-18 19:32:58,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 417 [2022-11-18 19:32:58,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 417 states and 552 transitions. [2022-11-18 19:32:58,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:32:58,447 INFO L218 hiAutomatonCegarLoop]: Abstraction has 417 states and 552 transitions. [2022-11-18 19:32:58,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states and 552 transitions. [2022-11-18 19:32:58,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 242. [2022-11-18 19:32:58,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 242 states have (on average 1.322314049586777) internal successors, (320), 241 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:58,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 320 transitions. [2022-11-18 19:32:58,504 INFO L240 hiAutomatonCegarLoop]: Abstraction has 242 states and 320 transitions. [2022-11-18 19:32:58,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:32:58,509 INFO L428 stractBuchiCegarLoop]: Abstraction has 242 states and 320 transitions. [2022-11-18 19:32:58,509 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 19:32:58,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 320 transitions. [2022-11-18 19:32:58,512 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2022-11-18 19:32:58,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:32:58,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:32:58,513 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:58,514 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] [2022-11-18 19:32:58,514 INFO L748 eck$LassoCheckResult]: Stem: 838#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 781#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 782#L843 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 712#L836 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 713#L851 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 735#L441 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 736#L413 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 737#L863 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 738#L297-2 [2022-11-18 19:32:58,514 INFO L750 eck$LassoCheckResult]: Loop: 738#L297-2 assume !false; 755#L298 assume test_~splverifierCounter~0#1 < 4; 756#L299 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 778#L307 assume !(0 != test_~tmp~4#1); 692#L307-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 676#L317 assume !(0 != test_~tmp___0~1#1); 678#L317-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 728#L327 assume 0 != test_~tmp___2~0#1; 729#L333-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 812#L209 __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 784#L873 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 785#L81 assume !(0 != ~pumpRunning~0); 814#L81-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 752#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; 753#L113-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 792#L105-3 assume { :end_inline_processEnvironment__wrappee__base } true; 786#L113-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 695#L139-1 assume { :end_inline_processEnvironment } true; 696#L88-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 699#L981 __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 700#L884 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 702#L884-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 807#L98 assume { :end_inline_timeShift } true; 738#L297-2 [2022-11-18 19:32:58,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:58,515 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-11-18 19:32:58,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:58,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727827064] [2022-11-18 19:32:58,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:58,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:58,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:32:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:58,539 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:32:58,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:58,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1571204004, now seen corresponding path program 1 times [2022-11-18 19:32:58,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:58,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827615731] [2022-11-18 19:32:58,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:58,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:32:58,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:58,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827615731] [2022-11-18 19:32:58,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827615731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:58,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:32:58,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:32:58,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901971498] [2022-11-18 19:32:58,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:58,570 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:32:58,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:58,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:32:58,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:32:58,571 INFO L87 Difference]: Start difference. First operand 242 states and 320 transitions. cyclomatic complexity: 81 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:58,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:58,664 INFO L93 Difference]: Finished difference Result 307 states and 389 transitions. [2022-11-18 19:32:58,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 389 transitions. [2022-11-18 19:32:58,668 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2022-11-18 19:32:58,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 307 states and 389 transitions. [2022-11-18 19:32:58,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 307 [2022-11-18 19:32:58,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 307 [2022-11-18 19:32:58,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 307 states and 389 transitions. [2022-11-18 19:32:58,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:32:58,673 INFO L218 hiAutomatonCegarLoop]: Abstraction has 307 states and 389 transitions. [2022-11-18 19:32:58,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states and 389 transitions. [2022-11-18 19:32:58,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2022-11-18 19:32:58,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 307 states have (on average 1.267100977198697) internal successors, (389), 306 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:58,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 389 transitions. [2022-11-18 19:32:58,686 INFO L240 hiAutomatonCegarLoop]: Abstraction has 307 states and 389 transitions. [2022-11-18 19:32:58,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:32:58,687 INFO L428 stractBuchiCegarLoop]: Abstraction has 307 states and 389 transitions. [2022-11-18 19:32:58,687 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 19:32:58,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 307 states and 389 transitions. [2022-11-18 19:32:58,690 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2022-11-18 19:32:58,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:32:58,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:32:58,691 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:58,691 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:58,691 INFO L748 eck$LassoCheckResult]: Stem: 1413#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 1343#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1344#L843 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1268#L836 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1269#L851 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 1292#L441 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1293#L413 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1294#L863 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1295#L297-2 [2022-11-18 19:32:58,692 INFO L750 eck$LassoCheckResult]: Loop: 1295#L297-2 assume !false; 1312#L298 assume test_~splverifierCounter~0#1 < 4; 1313#L299 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1498#L307 assume !(0 != test_~tmp~4#1); 1496#L307-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1231#L317 assume !(0 != test_~tmp___0~1#1); 1233#L317-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1354#L327 assume 0 != test_~tmp___2~0#1; 1491#L333-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1405#L209 __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 1406#L873 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1490#L81 assume !(0 != ~pumpRunning~0); 1392#L81-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1310#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; 1311#L113-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1236#L989-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1237#L994-1 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 1362#L258-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1363#L258-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1386#L264-1 processEnvironment__wrappee__methaneQuery_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~0#1 := processEnvironment__wrappee__methaneQuery_#t~ret4#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1; 1223#L117-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1225#L105-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1351#L113-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1252#L139-1 assume { :end_inline_processEnvironment } true; 1253#L88-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1489#L981 __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 1303#L884 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 1257#L884-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1400#L98 assume { :end_inline_timeShift } true; 1295#L297-2 [2022-11-18 19:32:58,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:58,693 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-11-18 19:32:58,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:58,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799890797] [2022-11-18 19:32:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:58,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:58,703 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:32:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:58,713 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:32:58,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:58,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1993864476, now seen corresponding path program 1 times [2022-11-18 19:32:58,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:58,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216518399] [2022-11-18 19:32:58,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:58,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:32:58,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:32:58,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:32:58,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216518399] [2022-11-18 19:32:58,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216518399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:32:58,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:32:58,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:32:58,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194036973] [2022-11-18 19:32:58,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:32:58,894 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:32:58,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:32:58,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:32:58,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:32:58,896 INFO L87 Difference]: Start difference. First operand 307 states and 389 transitions. cyclomatic complexity: 85 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:59,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:32:59,161 INFO L93 Difference]: Finished difference Result 1336 states and 1678 transitions. [2022-11-18 19:32:59,162 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1336 states and 1678 transitions. [2022-11-18 19:32:59,174 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 931 [2022-11-18 19:32:59,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1336 states to 1336 states and 1678 transitions. [2022-11-18 19:32:59,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1336 [2022-11-18 19:32:59,183 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1336 [2022-11-18 19:32:59,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1336 states and 1678 transitions. [2022-11-18 19:32:59,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:32:59,188 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1336 states and 1678 transitions. [2022-11-18 19:32:59,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states and 1678 transitions. [2022-11-18 19:32:59,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 603. [2022-11-18 19:32:59,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 603 states have (on average 1.252072968490879) internal successors, (755), 602 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:32:59,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 755 transitions. [2022-11-18 19:32:59,236 INFO L240 hiAutomatonCegarLoop]: Abstraction has 603 states and 755 transitions. [2022-11-18 19:32:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:32:59,238 INFO L428 stractBuchiCegarLoop]: Abstraction has 603 states and 755 transitions. [2022-11-18 19:32:59,239 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 19:32:59,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 603 states and 755 transitions. [2022-11-18 19:32:59,242 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 432 [2022-11-18 19:32:59,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:32:59,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:32:59,247 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:32:59,247 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] [2022-11-18 19:32:59,247 INFO L748 eck$LassoCheckResult]: Stem: 3103#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 3009#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 3010#L843 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2931#L836 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 2932#L851 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 2958#L441 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2959#L413 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2960#L863 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2961#L297-2 [2022-11-18 19:32:59,248 INFO L750 eck$LassoCheckResult]: Loop: 2961#L297-2 assume !false; 3006#L298 assume test_~splverifierCounter~0#1 < 4; 3356#L299 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 3420#L307 assume !(0 != test_~tmp~4#1); 3418#L307-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 3416#L317 assume !(0 != test_~tmp___0~1#1); 3414#L317-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 3413#L327 assume 0 != test_~tmp___2~0#1; 3412#L333-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 3457#L209 __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 3456#L873 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3446#L81 assume !(0 != ~pumpRunning~0); 3072#L81-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2976#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; 2977#L113-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 2898#L989-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 2899#L994-1 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 3034#L258-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3035#L258-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3065#L264-1 processEnvironment__wrappee__methaneQuery_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~0#1 := processEnvironment__wrappee__methaneQuery_#t~ret4#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1; 2880#L117-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2882#L105-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3442#L113-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3437#L139-1 assume { :end_inline_processEnvironment } true; 3432#L88-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 3431#L981 __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 3430#L884 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 3429#L209-1 __utac_acc__Specification5_spec__3_#t~ret48#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret48#1;havoc __utac_acc__Specification5_spec__3_#t~ret48#1; 3428#L888 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 3426#L884-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3425#L98 assume { :end_inline_timeShift } true; 2961#L297-2 [2022-11-18 19:32:59,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:59,254 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-11-18 19:32:59,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:59,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945955900] [2022-11-18 19:32:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:59,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:59,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:32:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:59,294 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:32:59,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:59,295 INFO L85 PathProgramCache]: Analyzing trace with hash 529251831, now seen corresponding path program 1 times [2022-11-18 19:32:59,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:59,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420638666] [2022-11-18 19:32:59,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:59,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:59,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:32:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:59,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:32:59,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:32:59,326 INFO L85 PathProgramCache]: Analyzing trace with hash -282788370, now seen corresponding path program 1 times [2022-11-18 19:32:59,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:32:59,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031557049] [2022-11-18 19:32:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:32:59,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:32:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:59,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:32:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:32:59,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:33:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:33:00,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:33:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:33:00,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 07:33:00 BoogieIcfgContainer [2022-11-18 19:33:00,889 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 19:33:00,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:33:00,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:33:00,890 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:33:00,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:57" (3/4) ... [2022-11-18 19:33:00,893 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 19:33:00,944 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:33:00,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:33:00,945 INFO L158 Benchmark]: Toolchain (without parser) took 5433.09ms. Allocated memory was 115.3MB in the beginning and 159.4MB in the end (delta: 44.0MB). Free memory was 72.2MB in the beginning and 59.0MB in the end (delta: 13.2MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2022-11-18 19:33:00,945 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:33:00,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.33ms. Allocated memory is still 115.3MB. Free memory was 72.0MB in the beginning and 80.7MB in the end (delta: -8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:33:00,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.76ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 76.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:33:00,947 INFO L158 Benchmark]: Boogie Preprocessor took 44.75ms. Allocated memory is still 115.3MB. Free memory was 76.9MB in the beginning and 74.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:33:00,947 INFO L158 Benchmark]: RCFGBuilder took 1043.68ms. Allocated memory is still 115.3MB. Free memory was 74.4MB in the beginning and 48.4MB in the end (delta: 26.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-18 19:33:00,947 INFO L158 Benchmark]: BuchiAutomizer took 3517.41ms. Allocated memory was 115.3MB in the beginning and 159.4MB in the end (delta: 44.0MB). Free memory was 47.9MB in the beginning and 62.1MB in the end (delta: -14.2MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2022-11-18 19:33:00,948 INFO L158 Benchmark]: Witness Printer took 54.95ms. Allocated memory is still 159.4MB. Free memory was 62.1MB in the beginning and 59.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:33:00,950 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 691.33ms. Allocated memory is still 115.3MB. Free memory was 72.0MB in the beginning and 80.7MB in the end (delta: -8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.76ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 76.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.75ms. Allocated memory is still 115.3MB. Free memory was 76.9MB in the beginning and 74.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1043.68ms. Allocated memory is still 115.3MB. Free memory was 74.4MB in the beginning and 48.4MB in the end (delta: 26.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3517.41ms. Allocated memory was 115.3MB in the beginning and 159.4MB in the end (delta: 44.0MB). Free memory was 47.9MB in the beginning and 62.1MB in the end (delta: -14.2MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Witness Printer took 54.95ms. Allocated memory is still 159.4MB. Free memory was 62.1MB in the beginning and 59.0MB 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 603 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 908 StatesRemovedByMinimization, 2 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, 2619 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2619 mSDsluCounter, 2986 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2147 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 208 IncrementalHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 839 mSDtfsCounter, 208 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 297]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L624] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L907] int methaneLevelCritical = 0; [L69] int pumpRunning = 0; [L906] int waterLevel = 1; [L70] int systemActive = 1; [L354] int cleanupTimeShifts = 4; [L857] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L432] int retValue_acc ; [L433] int tmp ; [L437] FCALL select_helpers() [L438] FCALL select_features() [L439] CALL, EXPR valid_product() [L847] int retValue_acc ; [L850] retValue_acc = 1 [L851] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L439] RET, EXPR valid_product() [L439] tmp = valid_product() [L441] COND TRUE \read(tmp) [L443] FCALL setup() [L444] CALL runTest() [L422] CALL __utac_acc__Specification5_spec__1() [L862] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L422] RET __utac_acc__Specification5_spec__1() [L423] CALL test() [L288] int splverifierCounter ; [L289] int tmp ; [L290] int tmp___0 ; [L291] int tmp___1 ; [L292] int tmp___2 ; [L295] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L297] COND TRUE 1 [L299] COND TRUE splverifierCounter < 4 [L305] tmp = __VERIFIER_nondet_int() [L307] COND FALSE !(\read(tmp)) [L315] tmp___0 = __VERIFIER_nondet_int() [L317] COND FALSE !(\read(tmp___0)) [L325] tmp___2 = __VERIFIER_nondet_int() [L327] COND TRUE \read(tmp___2) [L342] CALL timeShift() [L79] CALL __utac_acc__Specification5_spec__2() [L871] CALL, EXPR isPumpRunning() [L205] int retValue_acc ; [L208] retValue_acc = pumpRunning [L209] return (retValue_acc); [L871] RET, EXPR isPumpRunning() [L871] switchedOnBeforeTS = isPumpRunning() [L79] RET __utac_acc__Specification5_spec__2() [L81] COND FALSE !(\read(pumpRunning)) [L88] COND TRUE \read(systemActive) [L90] CALL processEnvironment() [L136] int tmp ; [L139] COND FALSE !(\read(pumpRunning)) [L154] CALL processEnvironment__wrappee__methaneQuery() [L110] int tmp ; [L113] COND TRUE ! pumpRunning [L115] CALL, EXPR isHighWaterLevel() [L250] int retValue_acc ; [L251] int tmp ; [L252] int tmp___0 ; [L256] CALL, EXPR isHighWaterSensorDry() [L986] int retValue_acc ; [L989] COND TRUE waterLevel < 2 [L990] retValue_acc = 1 [L991] return (retValue_acc); [L256] RET, EXPR isHighWaterSensorDry() [L256] tmp = isHighWaterSensorDry() [L258] COND TRUE \read(tmp) [L259] tmp___0 = 0 [L263] retValue_acc = tmp___0 [L264] return (retValue_acc); [L115] RET, EXPR isHighWaterLevel() [L115] tmp = isHighWaterLevel() [L117] COND FALSE !(\read(tmp)) [L123] FCALL processEnvironment__wrappee__base() [L154] RET processEnvironment__wrappee__methaneQuery() [L90] RET processEnvironment() [L96] CALL __utac_acc__Specification5_spec__3() [L877] int tmp ; [L878] int tmp___0 ; [L882] CALL, EXPR getWaterLevel() [L977] int retValue_acc ; [L980] retValue_acc = waterLevel [L981] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp = getWaterLevel() [L884] COND TRUE tmp != 2 [L886] CALL, EXPR isPumpRunning() [L205] int retValue_acc ; [L208] retValue_acc = pumpRunning [L209] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___0 = isPumpRunning() [L888] COND FALSE !(\read(tmp___0)) [L96] RET __utac_acc__Specification5_spec__3() [L342] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 297]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L624] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L907] int methaneLevelCritical = 0; [L69] int pumpRunning = 0; [L906] int waterLevel = 1; [L70] int systemActive = 1; [L354] int cleanupTimeShifts = 4; [L857] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L432] int retValue_acc ; [L433] int tmp ; [L437] FCALL select_helpers() [L438] FCALL select_features() [L439] CALL, EXPR valid_product() [L847] int retValue_acc ; [L850] retValue_acc = 1 [L851] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L439] RET, EXPR valid_product() [L439] tmp = valid_product() [L441] COND TRUE \read(tmp) [L443] FCALL setup() [L444] CALL runTest() [L422] CALL __utac_acc__Specification5_spec__1() [L862] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L422] RET __utac_acc__Specification5_spec__1() [L423] CALL test() [L288] int splverifierCounter ; [L289] int tmp ; [L290] int tmp___0 ; [L291] int tmp___1 ; [L292] int tmp___2 ; [L295] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L297] COND TRUE 1 [L299] COND TRUE splverifierCounter < 4 [L305] tmp = __VERIFIER_nondet_int() [L307] COND FALSE !(\read(tmp)) [L315] tmp___0 = __VERIFIER_nondet_int() [L317] COND FALSE !(\read(tmp___0)) [L325] tmp___2 = __VERIFIER_nondet_int() [L327] COND TRUE \read(tmp___2) [L342] CALL timeShift() [L79] CALL __utac_acc__Specification5_spec__2() [L871] CALL, EXPR isPumpRunning() [L205] int retValue_acc ; [L208] retValue_acc = pumpRunning [L209] return (retValue_acc); [L871] RET, EXPR isPumpRunning() [L871] switchedOnBeforeTS = isPumpRunning() [L79] RET __utac_acc__Specification5_spec__2() [L81] COND FALSE !(\read(pumpRunning)) [L88] COND TRUE \read(systemActive) [L90] CALL processEnvironment() [L136] int tmp ; [L139] COND FALSE !(\read(pumpRunning)) [L154] CALL processEnvironment__wrappee__methaneQuery() [L110] int tmp ; [L113] COND TRUE ! pumpRunning [L115] CALL, EXPR isHighWaterLevel() [L250] int retValue_acc ; [L251] int tmp ; [L252] int tmp___0 ; [L256] CALL, EXPR isHighWaterSensorDry() [L986] int retValue_acc ; [L989] COND TRUE waterLevel < 2 [L990] retValue_acc = 1 [L991] return (retValue_acc); [L256] RET, EXPR isHighWaterSensorDry() [L256] tmp = isHighWaterSensorDry() [L258] COND TRUE \read(tmp) [L259] tmp___0 = 0 [L263] retValue_acc = tmp___0 [L264] return (retValue_acc); [L115] RET, EXPR isHighWaterLevel() [L115] tmp = isHighWaterLevel() [L117] COND FALSE !(\read(tmp)) [L123] FCALL processEnvironment__wrappee__base() [L154] RET processEnvironment__wrappee__methaneQuery() [L90] RET processEnvironment() [L96] CALL __utac_acc__Specification5_spec__3() [L877] int tmp ; [L878] int tmp___0 ; [L882] CALL, EXPR getWaterLevel() [L977] int retValue_acc ; [L980] retValue_acc = waterLevel [L981] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp = getWaterLevel() [L884] COND TRUE tmp != 2 [L886] CALL, EXPR isPumpRunning() [L205] int retValue_acc ; [L208] retValue_acc = pumpRunning [L209] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___0 = isPumpRunning() [L888] COND FALSE !(\read(tmp___0)) [L96] RET __utac_acc__Specification5_spec__3() [L342] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-18 19:33:00,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e85432-225e-40c6-905f-a17221947b6c/bin/uautomizer-TMbwUNV5ro/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)