./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:12:08,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:12:08,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:12:08,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:12:08,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:12:08,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:12:08,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:12:08,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:12:08,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:12:08,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:12:08,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:12:08,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:12:08,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:12:08,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:12:08,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:12:08,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:12:08,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:12:08,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:12:08,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:12:08,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:12:08,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:12:08,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:12:08,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:12:08,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:12:08,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:12:08,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:12:08,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:12:08,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:12:08,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:12:08,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:12:08,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:12:08,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:12:08,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:12:08,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:12:08,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:12:08,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:12:08,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:12:08,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:12:08,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:12:08,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:12:08,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:12:08,155 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 18:12:08,173 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:12:08,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:12:08,173 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:12:08,173 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:12:08,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:12:08,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:12:08,174 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:12:08,175 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 18:12:08,175 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 18:12:08,175 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 18:12:08,175 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 18:12:08,175 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 18:12:08,175 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 18:12:08,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:12:08,175 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:12:08,176 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:12:08,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:12:08,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:12:08,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:12:08,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 18:12:08,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 18:12:08,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 18:12:08,176 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:12:08,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:12:08,177 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 18:12:08,177 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:12:08,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 18:12:08,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:12:08,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:12:08,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:12:08,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:12:08,178 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 18:12:08,178 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_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 [2022-12-13 18:12:08,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:12:08,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:12:08,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:12:08,363 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:12:08,363 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:12:08,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2022-12-13 18:12:10,933 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:12:11,122 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:12:11,123 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2022-12-13 18:12:11,132 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/data/f27ae11bf/6b8ad3ca8ee142369cc52574b47c7e2f/FLAG0222ccf05 [2022-12-13 18:12:11,142 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/data/f27ae11bf/6b8ad3ca8ee142369cc52574b47c7e2f [2022-12-13 18:12:11,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:12:11,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:12:11,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:12:11,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:12:11,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:12:11,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6722d844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11, skipping insertion in model container [2022-12-13 18:12:11,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:12:11,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:12:11,326 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c[2897,2910] [2022-12-13 18:12:11,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:12:11,421 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:12:11,435 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c[2897,2910] [2022-12-13 18:12:11,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:12:11,502 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:12:11,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11 WrapperNode [2022-12-13 18:12:11,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:12:11,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:12:11,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:12:11,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:12:11,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,567 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 60, calls inlined = 176, statements flattened = 1207 [2022-12-13 18:12:11,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:12:11,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:12:11,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:12:11,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:12:11,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,609 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:12:11,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:12:11,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:12:11,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:12:11,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11" (1/1) ... [2022-12-13 18:12:11,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 18:12:11,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:12:11,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 18:12:11,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 18:12:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:12:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:12:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:12:11,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:12:11,753 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:12:11,755 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:12:12,287 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:12:12,295 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:12:12,295 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 18:12:12,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:12:12 BoogieIcfgContainer [2022-12-13 18:12:12,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:12:12,299 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 18:12:12,299 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 18:12:12,303 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 18:12:12,303 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 18:12:12,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 06:12:11" (1/3) ... [2022-12-13 18:12:12,305 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cd06600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 06:12:12, skipping insertion in model container [2022-12-13 18:12:12,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 18:12:12,305 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:12:11" (2/3) ... [2022-12-13 18:12:12,305 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cd06600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 06:12:12, skipping insertion in model container [2022-12-13 18:12:12,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 18:12:12,305 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:12:12" (3/3) ... [2022-12-13 18:12:12,307 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2022-12-13 18:12:12,360 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 18:12:12,361 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 18:12:12,361 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 18:12:12,361 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 18:12:12,361 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 18:12:12,361 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 18:12:12,361 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 18:12:12,361 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 18:12:12,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 323 states, 322 states have (on average 1.3509316770186335) internal successors, (435), 322 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:12,394 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 213 [2022-12-13 18:12:12,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 18:12:12,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 18:12:12,399 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:12,400 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:12,400 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 18:12:12,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 323 states, 322 states have (on average 1.3509316770186335) internal successors, (435), 322 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:12,406 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 213 [2022-12-13 18:12:12,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 18:12:12,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 18:12:12,407 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:12,407 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:12,411 INFO L748 eck$LassoCheckResult]: Stem: 187#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 206#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 33#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 289#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 108#valid_product_returnLabel#1true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 70#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 88#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 243#L203-2true [2022-12-13 18:12:12,411 INFO L750 eck$LassoCheckResult]: Loop: 243#L203-2true assume !false; 128#L204true assume test_~splverifierCounter~0#1 < 4; 95#L205true test_~tmp~2#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 143#L213true assume !(0 != test_~tmp~2#1); 163#L213-2true test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 82#L223true assume !(0 != test_~tmp___0~1#1); 224#L223-2true test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 81#L233true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 40#L241true assume !(0 != test_~tmp___1~0#1); 71#L241-2true assume { :begin_inline_timeShift } true; 3#L276true assume !(0 != ~pumpRunning~0); 124#L276-2true assume !(0 != ~systemActive~0); 91#L283-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 233#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 72#L173true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 135#L173-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 234#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 243#L203-2true [2022-12-13 18:12:12,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:12,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 18:12:12,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:12,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708198810] [2022-12-13 18:12:12,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:12,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:12,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:12:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:12,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:12:12,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:12,514 INFO L85 PathProgramCache]: Analyzing trace with hash -256988145, now seen corresponding path program 1 times [2022-12-13 18:12:12,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:12,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328512169] [2022-12-13 18:12:12,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:12,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:12,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:12:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:12,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:12:12,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:12,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1188669749, now seen corresponding path program 1 times [2022-12-13 18:12:12,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:12,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135498072] [2022-12-13 18:12:12,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:12,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:12:12,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:12:12,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:12:12,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135498072] [2022-12-13 18:12:12,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135498072] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:12:12,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:12:12,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:12:12,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525977237] [2022-12-13 18:12:12,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:12:12,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:12:12,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:12:12,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:12:12,828 INFO L87 Difference]: Start difference. First operand has 323 states, 322 states have (on average 1.3509316770186335) internal successors, (435), 322 states have internal predecessors, (435), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:12,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:12:12,965 INFO L93 Difference]: Finished difference Result 1008 states and 1331 transitions. [2022-12-13 18:12:12,966 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1008 states and 1331 transitions. [2022-12-13 18:12:12,977 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 664 [2022-12-13 18:12:12,985 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1008 states to 968 states and 1291 transitions. [2022-12-13 18:12:12,986 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 968 [2022-12-13 18:12:12,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 968 [2022-12-13 18:12:12,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 968 states and 1291 transitions. [2022-12-13 18:12:12,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:12:12,990 INFO L218 hiAutomatonCegarLoop]: Abstraction has 968 states and 1291 transitions. [2022-12-13 18:12:13,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states and 1291 transitions. [2022-12-13 18:12:13,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 362. [2022-12-13 18:12:13,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 362 states have (on average 1.3314917127071824) internal successors, (482), 361 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:13,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 482 transitions. [2022-12-13 18:12:13,026 INFO L240 hiAutomatonCegarLoop]: Abstraction has 362 states and 482 transitions. [2022-12-13 18:12:13,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:12:13,030 INFO L428 stractBuchiCegarLoop]: Abstraction has 362 states and 482 transitions. [2022-12-13 18:12:13,030 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 18:12:13,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 362 states and 482 transitions. [2022-12-13 18:12:13,033 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2022-12-13 18:12:13,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 18:12:13,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 18:12:13,035 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:13,035 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] [2022-12-13 18:12:13,035 INFO L748 eck$LassoCheckResult]: Stem: 1607#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1608#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1415#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1416#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1530#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1477#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1478#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1504#L203-2 [2022-12-13 18:12:13,035 INFO L750 eck$LassoCheckResult]: Loop: 1504#L203-2 assume !false; 1557#L204 assume test_~splverifierCounter~0#1 < 4; 1513#L205 test_~tmp~2#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1514#L213 assume !(0 != test_~tmp~2#1); 1572#L213-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 1495#L223 assume !(0 != test_~tmp___0~1#1); 1393#L223-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 1494#L233 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1426#L241 assume !(0 != test_~tmp___1~0#1); 1427#L241-2 assume { :begin_inline_timeShift } true; 1352#L276 assume !(0 != ~pumpRunning~0); 1353#L276-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1383#L360 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret15#1, isMethaneAlarm_~retValue_acc~1#1;havoc isMethaneAlarm_~retValue_acc~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 1385#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret15#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~1#1 := isMethaneAlarm_#t~ret15#1;havoc isMethaneAlarm_#t~ret15#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~1#1; 1654#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret13#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret13#1;havoc processEnvironment_#t~ret13#1; 1655#L364 assume 0 != processEnvironment_~tmp~5#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1500#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 1501#L360-1 assume { :end_inline_processEnvironment } true; 1509#L283-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 1510#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 1479#L173 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 1480#L173-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1564#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1504#L203-2 [2022-12-13 18:12:13,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:13,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 18:12:13,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:13,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844077249] [2022-12-13 18:12:13,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:13,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:13,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:12:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:13,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:12:13,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:13,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1618549816, now seen corresponding path program 1 times [2022-12-13 18:12:13,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:13,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592799147] [2022-12-13 18:12:13,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:13,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:12:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:12:13,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:12:13,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592799147] [2022-12-13 18:12:13,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592799147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:12:13,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:12:13,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:12:13,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095205493] [2022-12-13 18:12:13,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:12:13,071 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 18:12:13,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:12:13,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:12:13,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:12:13,072 INFO L87 Difference]: Start difference. First operand 362 states and 482 transitions. cyclomatic complexity: 123 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) [2022-12-13 18:12:13,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:12:13,146 INFO L93 Difference]: Finished difference Result 365 states and 459 transitions. [2022-12-13 18:12:13,146 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 365 states and 459 transitions. [2022-12-13 18:12:13,149 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 257 [2022-12-13 18:12:13,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 365 states to 365 states and 459 transitions. [2022-12-13 18:12:13,151 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 365 [2022-12-13 18:12:13,151 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 365 [2022-12-13 18:12:13,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 365 states and 459 transitions. [2022-12-13 18:12:13,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:12:13,152 INFO L218 hiAutomatonCegarLoop]: Abstraction has 365 states and 459 transitions. [2022-12-13 18:12:13,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states and 459 transitions. [2022-12-13 18:12:13,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2022-12-13 18:12:13,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 365 states have (on average 1.2575342465753425) internal successors, (459), 364 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:12:13,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 459 transitions. [2022-12-13 18:12:13,164 INFO L240 hiAutomatonCegarLoop]: Abstraction has 365 states and 459 transitions. [2022-12-13 18:12:13,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:12:13,165 INFO L428 stractBuchiCegarLoop]: Abstraction has 365 states and 459 transitions. [2022-12-13 18:12:13,165 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 18:12:13,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 365 states and 459 transitions. [2022-12-13 18:12:13,167 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 257 [2022-12-13 18:12:13,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 18:12:13,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 18:12:13,168 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:13,168 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:12:13,169 INFO L748 eck$LassoCheckResult]: Stem: 2282#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2283#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2128#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2129#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 2221#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 2176#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2177#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2200#L203-2 [2022-12-13 18:12:13,169 INFO L750 eck$LassoCheckResult]: Loop: 2200#L203-2 assume !false; 2241#L204 assume test_~splverifierCounter~0#1 < 4; 2207#L205 test_~tmp~2#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 2208#L213 assume !(0 != test_~tmp~2#1); 2255#L213-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 2190#L223 assume !(0 != test_~tmp___0~1#1); 2112#L223-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 2189#L233 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2168#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2138#L241-2 assume { :begin_inline_timeShift } true; 2085#L276 assume !(0 != ~pumpRunning~0); 2086#L276-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2105#L360 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 2106#L334-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 2307#L308-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~3#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 2157#L981-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 2158#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 2279#L479-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2248#L479-11 isHighWaterLevel_~retValue_acc~3#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1; 2249#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret11#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret11#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1; 2302#L312-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2240#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2136#L308-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2212#L334-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2197#L360-1 assume { :end_inline_processEnvironment } true; 2205#L283-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 2206#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 2178#L173 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 2179#L173-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 2247#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2200#L203-2 [2022-12-13 18:12:13,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:13,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 18:12:13,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:13,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066403022] [2022-12-13 18:12:13,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:13,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:13,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:12:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:13,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:12:13,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:13,188 INFO L85 PathProgramCache]: Analyzing trace with hash 236223142, now seen corresponding path program 1 times [2022-12-13 18:12:13,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:13,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370702379] [2022-12-13 18:12:13,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:13,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:13,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:12:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:13,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:12:13,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:12:13,210 INFO L85 PathProgramCache]: Analyzing trace with hash 633413994, now seen corresponding path program 1 times [2022-12-13 18:12:13,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:12:13,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345237540] [2022-12-13 18:12:13,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:12:13,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:12:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:13,222 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:12:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:13,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:12:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:13,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:12:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:12:14,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 06:12:14 BoogieIcfgContainer [2022-12-13 18:12:14,040 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 18:12:14,041 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:12:14,041 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:12:14,041 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:12:14,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:12:12" (3/4) ... [2022-12-13 18:12:14,043 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 18:12:14,074 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:12:14,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:12:14,075 INFO L158 Benchmark]: Toolchain (without parser) took 2929.81ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 96.7MB in the beginning and 119.4MB in the end (delta: -22.6MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-12-13 18:12:14,075 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:12:14,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.62ms. Allocated memory is still 140.5MB. Free memory was 96.4MB in the beginning and 77.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 18:12:14,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.72ms. Allocated memory is still 140.5MB. Free memory was 77.6MB in the beginning and 72.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:12:14,076 INFO L158 Benchmark]: Boogie Preprocessor took 49.04ms. Allocated memory is still 140.5MB. Free memory was 72.7MB in the beginning and 68.8MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:12:14,077 INFO L158 Benchmark]: RCFGBuilder took 679.75ms. Allocated memory is still 140.5MB. Free memory was 68.8MB in the beginning and 81.3MB in the end (delta: -12.5MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-12-13 18:12:14,077 INFO L158 Benchmark]: BuchiAutomizer took 1741.30ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 80.7MB in the beginning and 122.5MB in the end (delta: -41.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:12:14,078 INFO L158 Benchmark]: Witness Printer took 33.63ms. Allocated memory is still 169.9MB. Free memory was 122.5MB in the beginning and 119.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:12:14,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.62ms. Allocated memory is still 140.5MB. Free memory was 96.4MB in the beginning and 77.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.72ms. Allocated memory is still 140.5MB. Free memory was 77.6MB in the beginning and 72.7MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.04ms. Allocated memory is still 140.5MB. Free memory was 72.7MB in the beginning and 68.8MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 679.75ms. Allocated memory is still 140.5MB. Free memory was 68.8MB in the beginning and 81.3MB in the end (delta: -12.5MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 1741.30ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 80.7MB in the beginning and 122.5MB in the end (delta: -41.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 33.63ms. Allocated memory is still 169.9MB. Free memory was 122.5MB in the beginning and 119.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 365 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 606 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2688 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2688 mSDsluCounter, 3116 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2389 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 727 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 203]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L269] int pumpRunning = 0; [L270] int systemActive = 1; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L898] int waterLevel = 1; [L899] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L1027] int retValue_acc ; [L1030] retValue_acc = 1 [L1031] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L194] int splverifierCounter ; [L195] int tmp ; [L196] int tmp___0 ; [L197] int tmp___1 ; [L198] int tmp___2 ; [L201] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L203] COND TRUE 1 [L205] COND TRUE splverifierCounter < 4 [L211] tmp = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp)) [L221] tmp___0 = __VERIFIER_nondet_int() [L223] COND FALSE !(\read(tmp___0)) [L231] tmp___2 = __VERIFIER_nondet_int() [L233] COND TRUE \read(tmp___2) [L235] CALL startSystem() [L527] systemActive = 1 [L235] RET startSystem() [L250] CALL timeShift() [L276] COND FALSE !(\read(pumpRunning)) [L283] COND TRUE \read(systemActive) [L285] CALL processEnvironment() [L357] int tmp ; [L360] COND FALSE !(\read(pumpRunning)) [L375] CALL processEnvironment__wrappee__methaneQuery() [L331] int tmp ; [L334] COND FALSE !(\read(pumpRunning)) [L349] CALL processEnvironment__wrappee__highWaterSensor() [L305] int tmp ; [L308] COND TRUE ! pumpRunning [L310] CALL, EXPR isHighWaterLevel() [L471] int retValue_acc ; [L472] int tmp ; [L473] int tmp___0 ; [L477] CALL, EXPR isHighWaterSensorDry() [L978] int retValue_acc ; [L981] COND TRUE waterLevel < 2 [L982] retValue_acc = 1 [L983] return (retValue_acc); [L477] RET, EXPR isHighWaterSensorDry() [L477] tmp = isHighWaterSensorDry() [L479] COND TRUE \read(tmp) [L480] tmp___0 = 0 [L484] retValue_acc = tmp___0 [L485] return (retValue_acc); [L310] RET, EXPR isHighWaterLevel() [L310] tmp = isHighWaterLevel() [L312] COND FALSE !(\read(tmp)) [L318] FCALL processEnvironment__wrappee__base() [L349] RET processEnvironment__wrappee__highWaterSensor() [L375] RET processEnvironment__wrappee__methaneQuery() [L285] RET processEnvironment() [L291] CALL __utac_acc__Specification4_spec__1() [L166] int tmp ; [L167] int tmp___0 ; [L171] CALL, EXPR getWaterLevel() [L969] int retValue_acc ; [L972] retValue_acc = waterLevel [L973] return (retValue_acc); [L171] RET, EXPR getWaterLevel() [L171] tmp = getWaterLevel() [L173] COND FALSE !(tmp == 0) [L291] RET __utac_acc__Specification4_spec__1() [L250] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 203]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L269] int pumpRunning = 0; [L270] int systemActive = 1; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L898] int waterLevel = 1; [L899] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L1027] int retValue_acc ; [L1030] retValue_acc = 1 [L1031] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L194] int splverifierCounter ; [L195] int tmp ; [L196] int tmp___0 ; [L197] int tmp___1 ; [L198] int tmp___2 ; [L201] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L203] COND TRUE 1 [L205] COND TRUE splverifierCounter < 4 [L211] tmp = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp)) [L221] tmp___0 = __VERIFIER_nondet_int() [L223] COND FALSE !(\read(tmp___0)) [L231] tmp___2 = __VERIFIER_nondet_int() [L233] COND TRUE \read(tmp___2) [L235] CALL startSystem() [L527] systemActive = 1 [L235] RET startSystem() [L250] CALL timeShift() [L276] COND FALSE !(\read(pumpRunning)) [L283] COND TRUE \read(systemActive) [L285] CALL processEnvironment() [L357] int tmp ; [L360] COND FALSE !(\read(pumpRunning)) [L375] CALL processEnvironment__wrappee__methaneQuery() [L331] int tmp ; [L334] COND FALSE !(\read(pumpRunning)) [L349] CALL processEnvironment__wrappee__highWaterSensor() [L305] int tmp ; [L308] COND TRUE ! pumpRunning [L310] CALL, EXPR isHighWaterLevel() [L471] int retValue_acc ; [L472] int tmp ; [L473] int tmp___0 ; [L477] CALL, EXPR isHighWaterSensorDry() [L978] int retValue_acc ; [L981] COND TRUE waterLevel < 2 [L982] retValue_acc = 1 [L983] return (retValue_acc); [L477] RET, EXPR isHighWaterSensorDry() [L477] tmp = isHighWaterSensorDry() [L479] COND TRUE \read(tmp) [L480] tmp___0 = 0 [L484] retValue_acc = tmp___0 [L485] return (retValue_acc); [L310] RET, EXPR isHighWaterLevel() [L310] tmp = isHighWaterLevel() [L312] COND FALSE !(\read(tmp)) [L318] FCALL processEnvironment__wrappee__base() [L349] RET processEnvironment__wrappee__highWaterSensor() [L375] RET processEnvironment__wrappee__methaneQuery() [L285] RET processEnvironment() [L291] CALL __utac_acc__Specification4_spec__1() [L166] int tmp ; [L167] int tmp___0 ; [L171] CALL, EXPR getWaterLevel() [L969] int retValue_acc ; [L972] retValue_acc = waterLevel [L973] return (retValue_acc); [L171] RET, EXPR getWaterLevel() [L171] tmp = getWaterLevel() [L173] COND FALSE !(tmp == 0) [L291] RET __utac_acc__Specification4_spec__1() [L250] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 18:12:14,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d90158fa-eafd-4519-b604-489183a1cc56/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)