./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G --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 9cfe95aaca007f6467395901a9efc89e5ad27f0fc32ae7ae8a1fe4e27a1f35c1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:53:41,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:53:41,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:53:41,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:53:41,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:53:41,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:53:41,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:53:41,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:53:41,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:53:41,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:53:41,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:53:41,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:53:41,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:53:41,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:53:41,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:53:41,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:53:41,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:53:41,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:53:41,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:53:41,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:53:41,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:53:41,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:53:41,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:53:41,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:53:41,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:53:41,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:53:41,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:53:41,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:53:41,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:53:41,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:53:41,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:53:41,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:53:41,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:53:41,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:53:41,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:53:41,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:53:41,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:53:41,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:53:41,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:53:41,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:53:41,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:53:41,200 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-23 12:53:41,249 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:53:41,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:53:41,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:53:41,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:53:41,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:53:41,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:53:41,254 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:53:41,254 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 12:53:41,255 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 12:53:41,255 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 12:53:41,256 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 12:53:41,257 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 12:53:41,257 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 12:53:41,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:53:41,257 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:53:41,258 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 12:53:41,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:53:41,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:53:41,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:53:41,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 12:53:41,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 12:53:41,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 12:53:41,259 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:53:41,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:53:41,260 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 12:53:41,260 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:53:41,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 12:53:41,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:53:41,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:53:41,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:53:41,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:53:41,264 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:53:41,265 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 12:53:41,266 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_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cfe95aaca007f6467395901a9efc89e5ad27f0fc32ae7ae8a1fe4e27a1f35c1 [2021-11-23 12:53:41,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:53:41,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:53:41,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:53:41,595 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:53:41,596 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:53:41,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2021-11-23 12:53:41,689 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/data/4b7cebefb/147177f5086a40a59dd9dcf4a68e8a3a/FLAGb2e085856 [2021-11-23 12:53:42,304 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:53:42,305 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2021-11-23 12:53:42,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/data/4b7cebefb/147177f5086a40a59dd9dcf4a68e8a3a/FLAGb2e085856 [2021-11-23 12:53:42,580 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/data/4b7cebefb/147177f5086a40a59dd9dcf4a68e8a3a [2021-11-23 12:53:42,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:53:42,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:53:42,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:53:42,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:53:42,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:53:42,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:53:42" (1/1) ... [2021-11-23 12:53:42,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@208891c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:42, skipping insertion in model container [2021-11-23 12:53:42,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:53:42" (1/1) ... [2021-11-23 12:53:42,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:53:42,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:53:42,881 WARN L230 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_47672782-1360-45be-9ee7-3d50195b29ef/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c[1605,1618] [2021-11-23 12:53:43,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:53:43,031 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:53:43,057 WARN L230 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_47672782-1360-45be-9ee7-3d50195b29ef/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c[1605,1618] [2021-11-23 12:53:43,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:53:43,176 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:53:43,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:43 WrapperNode [2021-11-23 12:53:43,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:53:43,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:53:43,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:53:43,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:53:43,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:43" (1/1) ... [2021-11-23 12:53:43,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:43" (1/1) ... [2021-11-23 12:53:43,304 INFO L137 Inliner]: procedures = 58, calls = 158, calls flagged for inlining = 55, calls inlined = 85, statements flattened = 642 [2021-11-23 12:53:43,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:53:43,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:53:43,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:53:43,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:53:43,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:43" (1/1) ... [2021-11-23 12:53:43,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:43" (1/1) ... [2021-11-23 12:53:43,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:43" (1/1) ... [2021-11-23 12:53:43,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:43" (1/1) ... [2021-11-23 12:53:43,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:43" (1/1) ... [2021-11-23 12:53:43,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:43" (1/1) ... [2021-11-23 12:53:43,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:43" (1/1) ... [2021-11-23 12:53:43,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:53:43,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:53:43,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:53:43,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:53:43,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:43" (1/1) ... [2021-11-23 12:53:43,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 12:53:43,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:53:43,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 12:53:43,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 12:53:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:53:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:53:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:53:43,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:53:43,544 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:53:43,546 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:53:44,053 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:53:44,064 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:53:44,065 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 12:53:44,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:53:44 BoogieIcfgContainer [2021-11-23 12:53:44,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:53:44,070 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 12:53:44,070 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 12:53:44,074 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 12:53:44,076 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 12:53:44,076 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 12:53:42" (1/3) ... [2021-11-23 12:53:44,077 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e9ece3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:53:44, skipping insertion in model container [2021-11-23 12:53:44,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 12:53:44,078 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:43" (2/3) ... [2021-11-23 12:53:44,078 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e9ece3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:53:44, skipping insertion in model container [2021-11-23 12:53:44,079 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 12:53:44,079 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:53:44" (3/3) ... [2021-11-23 12:53:44,080 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2021-11-23 12:53:44,133 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 12:53:44,134 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 12:53:44,134 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 12:53:44,134 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 12:53:44,134 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 12:53:44,134 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 12:53:44,135 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 12:53:44,135 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 12:53:44,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 173 states, 172 states have (on average 1.372093023255814) internal successors, (236), 172 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:53:44,194 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2021-11-23 12:53:44,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 12:53:44,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 12:53:44,203 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:53:44,204 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:53:44,204 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 12:53:44,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 173 states, 172 states have (on average 1.372093023255814) internal successors, (236), 172 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:53:44,217 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2021-11-23 12:53:44,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 12:53:44,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 12:53:44,219 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:53:44,220 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:53:44,226 INFO L791 eck$LassoCheckResult]: Stem: 156#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(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 54#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 44#L894true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 162#L887true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 131#L902true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 128#L990true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 9#L966true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 69#L826true 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___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3#L293-2true [2021-11-23 12:53:44,228 INFO L793 eck$LassoCheckResult]: Loop: 3#L293-2true assume !false; 145#L294true assume test_~splverifierCounter~0#1 < 4; 10#L295true test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 163#L303true assume !(0 != test_~tmp~4#1); 126#L303-2true test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 34#L313true assume !(0 != test_~tmp___0~2#1); 135#L313-2true test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 8#L323true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 16#L331true assume 0 != test_~tmp___1~0#1; 161#L331-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#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; 81#L193true __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 23#L836true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 123#L82true assume !(0 != ~pumpRunning~0); 169#L82-2true assume !(0 != ~systemActive~0); 72#L89-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 152#L426true __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 138#L847true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 49#L847-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 143#L99true assume { :end_inline_timeShift } true; 3#L293-2true [2021-11-23 12:53:44,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:53:44,235 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-11-23 12:53:44,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:53:44,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133916650] [2021-11-23 12:53:44,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:53:44,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:53:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:44,406 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:53:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:44,469 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:53:44,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:53:44,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1334625068, now seen corresponding path program 1 times [2021-11-23 12:53:44,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:53:44,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625563339] [2021-11-23 12:53:44,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:53:44,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:53:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:44,484 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:53:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:44,497 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:53:44,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:53:44,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1530593885, now seen corresponding path program 1 times [2021-11-23 12:53:44,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:53:44,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766119354] [2021-11-23 12:53:44,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:53:44,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:53:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:53:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:53:44,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:53:44,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766119354] [2021-11-23 12:53:44,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766119354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:53:44,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:53:44,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:53:44,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589910634] [2021-11-23 12:53:44,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:53:44,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:53:44,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 12:53:44,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:53:44,891 INFO L87 Difference]: Start difference. First operand has 173 states, 172 states have (on average 1.372093023255814) internal successors, (236), 172 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:53:44,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:53:44,979 INFO L93 Difference]: Finished difference Result 170 states and 222 transitions. [2021-11-23 12:53:44,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 12:53:44,986 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 222 transitions. [2021-11-23 12:53:44,992 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2021-11-23 12:53:44,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 160 states and 212 transitions. [2021-11-23 12:53:45,000 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2021-11-23 12:53:45,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2021-11-23 12:53:45,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 212 transitions. [2021-11-23 12:53:45,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:53:45,003 INFO L681 BuchiCegarLoop]: Abstraction has 160 states and 212 transitions. [2021-11-23 12:53:45,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 212 transitions. [2021-11-23 12:53:45,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-11-23 12:53:45,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 160 states have (on average 1.325) internal successors, (212), 159 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:53:45,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 212 transitions. [2021-11-23 12:53:45,046 INFO L704 BuchiCegarLoop]: Abstraction has 160 states and 212 transitions. [2021-11-23 12:53:45,046 INFO L587 BuchiCegarLoop]: Abstraction has 160 states and 212 transitions. [2021-11-23 12:53:45,046 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-23 12:53:45,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 212 transitions. [2021-11-23 12:53:45,049 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2021-11-23 12:53:45,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 12:53:45,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 12:53:45,051 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:53:45,051 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:53:45,051 INFO L791 eck$LassoCheckResult]: Stem: 520#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(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 446#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 432#L894 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 433#L887 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 512#L902 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 510#L990 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 371#L966 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 372#L826 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___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 363#L293-2 [2021-11-23 12:53:45,052 INFO L793 eck$LassoCheckResult]: Loop: 363#L293-2 assume !false; 364#L294 assume test_~splverifierCounter~0#1 < 4; 375#L295 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 376#L303 assume !(0 != test_~tmp~4#1); 495#L303-2 test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 417#L313 assume !(0 != test_~tmp___0~2#1); 419#L313-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 369#L323 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 370#L331 assume 0 != test_~tmp___1~0#1; 366#L331-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#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; 473#L193 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 399#L836 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 400#L82 assume !(0 != ~pumpRunning~0); 505#L82-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 470#L140 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 448#L114-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 373#L106-3 assume { :end_inline_processEnvironment__wrappee__base } true; 374#L114-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 452#L140-1 assume { :end_inline_processEnvironment } true; 453#L89-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 460#L426 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 515#L847 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 398#L847-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 437#L99 assume { :end_inline_timeShift } true; 363#L293-2 [2021-11-23 12:53:45,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:53:45,053 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-11-23 12:53:45,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:53:45,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396070298] [2021-11-23 12:53:45,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:53:45,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:53:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:45,074 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:53:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:45,106 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:53:45,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:53:45,117 INFO L85 PathProgramCache]: Analyzing trace with hash 332748623, now seen corresponding path program 1 times [2021-11-23 12:53:45,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:53:45,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453589191] [2021-11-23 12:53:45,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:53:45,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:53:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:53:45,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:53:45,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:53:45,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453589191] [2021-11-23 12:53:45,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453589191] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:53:45,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:53:45,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:53:45,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710370311] [2021-11-23 12:53:45,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:53:45,165 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-23 12:53:45,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:53:45,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:53:45,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:53:45,167 INFO L87 Difference]: Start difference. First operand 160 states and 212 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:53:45,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:53:45,266 INFO L93 Difference]: Finished difference Result 225 states and 287 transitions. [2021-11-23 12:53:45,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:53:45,267 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 225 states and 287 transitions. [2021-11-23 12:53:45,271 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2021-11-23 12:53:45,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 225 states to 225 states and 287 transitions. [2021-11-23 12:53:45,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 225 [2021-11-23 12:53:45,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 225 [2021-11-23 12:53:45,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 225 states and 287 transitions. [2021-11-23 12:53:45,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:53:45,278 INFO L681 BuchiCegarLoop]: Abstraction has 225 states and 287 transitions. [2021-11-23 12:53:45,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states and 287 transitions. [2021-11-23 12:53:45,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-11-23 12:53:45,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 225 states have (on average 1.2755555555555556) internal successors, (287), 224 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:53:45,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 287 transitions. [2021-11-23 12:53:45,325 INFO L704 BuchiCegarLoop]: Abstraction has 225 states and 287 transitions. [2021-11-23 12:53:45,326 INFO L587 BuchiCegarLoop]: Abstraction has 225 states and 287 transitions. [2021-11-23 12:53:45,326 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-23 12:53:45,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states and 287 transitions. [2021-11-23 12:53:45,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2021-11-23 12:53:45,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 12:53:45,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 12:53:45,330 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:53:45,330 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:53:45,330 INFO L791 eck$LassoCheckResult]: Stem: 920#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(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 833#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 820#L894 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 821#L887 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 908#L902 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 905#L990 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 762#L966 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 763#L826 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___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 850#L293-2 [2021-11-23 12:53:45,331 INFO L793 eck$LassoCheckResult]: Loop: 850#L293-2 assume !false; 952#L294 assume test_~splverifierCounter~0#1 < 4; 950#L295 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 944#L303 assume !(0 != test_~tmp~4#1); 941#L303-2 test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 937#L313 assume !(0 != test_~tmp___0~2#1); 910#L313-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 760#L323 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 756#L276 assume { :end_inline_startSystem } true; 757#L331-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#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; 863#L193 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 785#L836 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 786#L82 assume !(0 != ~pumpRunning~0); 900#L82-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 860#L140 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 835#L114-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 836#L434-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 839#L439-1 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 840#L242-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 837#L242-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 838#L248-1 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 886#L118-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 855#L106-2 assume { :end_inline_processEnvironment__wrappee__base } true; 856#L114-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 921#L140-1 assume { :end_inline_processEnvironment } true; 962#L89-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 961#L426 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 957#L847 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 956#L847-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 955#L99 assume { :end_inline_timeShift } true; 850#L293-2 [2021-11-23 12:53:45,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:53:45,332 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-11-23 12:53:45,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:53:45,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760991722] [2021-11-23 12:53:45,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:53:45,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:53:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:45,350 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:53:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:45,371 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:53:45,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:53:45,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1073249320, now seen corresponding path program 1 times [2021-11-23 12:53:45,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:53:45,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967297984] [2021-11-23 12:53:45,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:53:45,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:53:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:53:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:53:45,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:53:45,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967297984] [2021-11-23 12:53:45,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967297984] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:53:45,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:53:45,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:53:45,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604759614] [2021-11-23 12:53:45,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:53:45,453 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-23 12:53:45,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:53:45,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 12:53:45,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:53:45,456 INFO L87 Difference]: Start difference. First operand 225 states and 287 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:53:45,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:53:45,669 INFO L93 Difference]: Finished difference Result 638 states and 798 transitions. [2021-11-23 12:53:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 12:53:45,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 638 states and 798 transitions. [2021-11-23 12:53:45,682 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 411 [2021-11-23 12:53:45,691 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 638 states to 638 states and 798 transitions. [2021-11-23 12:53:45,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 638 [2021-11-23 12:53:45,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 638 [2021-11-23 12:53:45,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 638 states and 798 transitions. [2021-11-23 12:53:45,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:53:45,701 INFO L681 BuchiCegarLoop]: Abstraction has 638 states and 798 transitions. [2021-11-23 12:53:45,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states and 798 transitions. [2021-11-23 12:53:45,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 440. [2021-11-23 12:53:45,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 440 states have (on average 1.25) internal successors, (550), 439 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:53:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 550 transitions. [2021-11-23 12:53:45,750 INFO L704 BuchiCegarLoop]: Abstraction has 440 states and 550 transitions. [2021-11-23 12:53:45,751 INFO L587 BuchiCegarLoop]: Abstraction has 440 states and 550 transitions. [2021-11-23 12:53:45,751 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-23 12:53:45,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 440 states and 550 transitions. [2021-11-23 12:53:45,755 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 310 [2021-11-23 12:53:45,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 12:53:45,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 12:53:45,758 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:53:45,759 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:53:45,761 INFO L791 eck$LassoCheckResult]: Stem: 1803#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(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1717#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1700#L894 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1701#L887 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1789#L902 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1788#L990 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1641#L966 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1642#L826 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___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1631#L293-2 [2021-11-23 12:53:45,761 INFO L793 eck$LassoCheckResult]: Loop: 1631#L293-2 assume !false; 1632#L294 assume test_~splverifierCounter~0#1 < 4; 1798#L295 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 2057#L303 assume !(0 != test_~tmp~4#1); 2056#L303-2 test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 2054#L313 assume !(0 != test_~tmp___0~2#1); 2052#L313-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 2051#L323 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2049#L276 assume { :end_inline_startSystem } true; 2048#L331-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#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; 2044#L193 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 2043#L836 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2042#L82 assume !(0 != ~pumpRunning~0); 2027#L82-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1740#L140 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1713#L114-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1714#L434-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1718#L439-1 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 1719#L242-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1715#L242-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1716#L248-1 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 1766#L118-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1735#L106-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1736#L114-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1806#L140-1 assume { :end_inline_processEnvironment } true; 1993#L89-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1992#L426 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 1991#L847 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8#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; 1990#L193-1 __utac_acc__Specification5_spec__3_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 1989#L851 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 1987#L847-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1796#L99 assume { :end_inline_timeShift } true; 1631#L293-2 [2021-11-23 12:53:45,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:53:45,763 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-11-23 12:53:45,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:53:45,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125941219] [2021-11-23 12:53:45,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:53:45,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:53:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:45,793 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:53:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:45,831 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:53:45,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:53:45,833 INFO L85 PathProgramCache]: Analyzing trace with hash 581349059, now seen corresponding path program 1 times [2021-11-23 12:53:45,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:53:45,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101510249] [2021-11-23 12:53:45,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:53:45,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:53:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:45,853 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:53:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:45,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:53:45,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:53:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1177906604, now seen corresponding path program 1 times [2021-11-23 12:53:45,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:53:45,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686743009] [2021-11-23 12:53:45,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:53:45,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:53:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:45,912 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:53:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:53:45,956 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:53:50,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 12:53:50 BoogieIcfgContainer [2021-11-23 12:53:50,369 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 12:53:50,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 12:53:50,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 12:53:50,372 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 12:53:50,373 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:53:44" (3/4) ... [2021-11-23 12:53:50,376 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-23 12:53:50,494 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 12:53:50,494 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 12:53:50,495 INFO L158 Benchmark]: Toolchain (without parser) took 7907.31ms. Allocated memory was 113.2MB in the beginning and 153.1MB in the end (delta: 39.8MB). Free memory was 76.6MB in the beginning and 50.0MB in the end (delta: 26.6MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2021-11-23 12:53:50,496 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory was 87.4MB in the beginning and 87.3MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:53:50,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.73ms. Allocated memory is still 113.2MB. Free memory was 76.4MB in the beginning and 80.0MB in the end (delta: -3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 12:53:50,497 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.40ms. Allocated memory is still 113.2MB. Free memory was 80.0MB in the beginning and 76.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 12:53:50,498 INFO L158 Benchmark]: Boogie Preprocessor took 46.07ms. Allocated memory is still 113.2MB. Free memory was 76.4MB in the beginning and 74.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 12:53:50,498 INFO L158 Benchmark]: RCFGBuilder took 716.50ms. Allocated memory is still 113.2MB. Free memory was 74.3MB in the beginning and 51.7MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 12:53:50,499 INFO L158 Benchmark]: BuchiAutomizer took 6298.77ms. Allocated memory was 113.2MB in the beginning and 153.1MB in the end (delta: 39.8MB). Free memory was 51.7MB in the beginning and 54.1MB in the end (delta: -2.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-11-23 12:53:50,499 INFO L158 Benchmark]: Witness Printer took 125.32ms. Allocated memory is still 153.1MB. Free memory was 53.2MB in the beginning and 50.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 12:53:50,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory was 87.4MB in the beginning and 87.3MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.73ms. Allocated memory is still 113.2MB. Free memory was 76.4MB in the beginning and 80.0MB in the end (delta: -3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.40ms. Allocated memory is still 113.2MB. Free memory was 80.0MB in the beginning and 76.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.07ms. Allocated memory is still 113.2MB. Free memory was 76.4MB in the beginning and 74.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 716.50ms. Allocated memory is still 113.2MB. Free memory was 74.3MB in the beginning and 51.7MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 6298.77ms. Allocated memory was 113.2MB in the beginning and 153.1MB in the end (delta: 39.8MB). Free memory was 51.7MB in the beginning and 54.1MB in the end (delta: -2.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 125.32ms. Allocated memory is still 153.1MB. Free memory was 53.2MB in the beginning and 50.0MB 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 440 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 198 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 440 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1490 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1490 mSDsluCounter, 1569 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 807 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 762 mSDtfsCounter, 142 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 293]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@584206be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@681ef8a1=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@559d403c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54a4295a=0, methaneLevelCritical=0, retValue_acc=1, tmp=1, tmp=1, retValue_acc=1, retValue_acc=0, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@973ec04=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b5f7ca4=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27172db5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4710d785=0, tmp___2=29, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6898fe9f=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp=0, tmp___0=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27c63df1=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5573b522=0, tmp=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 293]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L351] int waterLevel = 1; [L352] int methaneLevelCritical = 0; [L623] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L820] int switchedOnBeforeTS ; [L907] int cleanupTimeShifts = 4; [L981] int retValue_acc ; [L982] int tmp ; [L986] FCALL select_helpers() [L987] FCALL select_features() [L988] CALL, EXPR valid_product() [L898] int retValue_acc ; [L901] retValue_acc = 1 [L902] return (retValue_acc); [L988] RET, EXPR valid_product() [L988] tmp = valid_product() [L990] COND TRUE \read(tmp) [L992] FCALL setup() [L993] CALL runTest() [L974] CALL __utac_acc__Specification5_spec__1() [L825] switchedOnBeforeTS = 0 [L974] RET __utac_acc__Specification5_spec__1() [L975] CALL test() [L284] int splverifierCounter ; [L285] int tmp ; [L286] int tmp___0 ; [L287] int tmp___1 ; [L288] int tmp___2 ; [L291] splverifierCounter = 0 Loop: [L293] COND TRUE 1 [L295] COND TRUE splverifierCounter < 4 [L301] tmp = __VERIFIER_nondet_int() [L303] COND FALSE !(\read(tmp)) [L311] tmp___0 = __VERIFIER_nondet_int() [L313] COND FALSE !(\read(tmp___0)) [L321] tmp___2 = __VERIFIER_nondet_int() [L323] COND TRUE \read(tmp___2) [L325] CALL startSystem() [L275] systemActive = 1 [L325] RET startSystem() [L338] CALL timeShift() [L80] CALL __utac_acc__Specification5_spec__2() [L834] CALL, EXPR isPumpRunning() [L189] int retValue_acc ; [L192] retValue_acc = pumpRunning [L193] return (retValue_acc); [L834] RET, EXPR isPumpRunning() [L834] switchedOnBeforeTS = isPumpRunning() [L80] RET __utac_acc__Specification5_spec__2() [L82] COND FALSE !(\read(pumpRunning)) [L89] COND TRUE \read(systemActive) [L91] CALL processEnvironment() [L137] int tmp ; [L140] COND FALSE !(\read(pumpRunning)) [L155] CALL processEnvironment__wrappee__highWaterSensor() [L111] int tmp ; [L114] COND TRUE ! pumpRunning [L116] CALL, EXPR isHighWaterLevel() [L234] int retValue_acc ; [L235] int tmp ; [L236] int tmp___0 ; [L240] CALL, EXPR isHighWaterSensorDry() [L431] int retValue_acc ; [L434] COND TRUE waterLevel < 2 [L435] retValue_acc = 1 [L436] return (retValue_acc); [L240] RET, EXPR isHighWaterSensorDry() [L240] tmp = isHighWaterSensorDry() [L242] COND TRUE \read(tmp) [L243] tmp___0 = 0 [L247] retValue_acc = tmp___0 [L248] return (retValue_acc); [L116] RET, EXPR isHighWaterLevel() [L116] tmp = isHighWaterLevel() [L118] COND FALSE !(\read(tmp)) [L124] FCALL processEnvironment__wrappee__base() [L155] RET processEnvironment__wrappee__highWaterSensor() [L91] RET processEnvironment() [L97] CALL __utac_acc__Specification5_spec__3() [L840] int tmp ; [L841] int tmp___0 ; [L845] CALL, EXPR getWaterLevel() [L422] int retValue_acc ; [L425] retValue_acc = waterLevel [L426] return (retValue_acc); [L845] RET, EXPR getWaterLevel() [L845] tmp = getWaterLevel() [L847] COND TRUE tmp != 2 [L849] CALL, EXPR isPumpRunning() [L189] int retValue_acc ; [L192] retValue_acc = pumpRunning [L193] return (retValue_acc); [L849] RET, EXPR isPumpRunning() [L849] tmp___0 = isPumpRunning() [L851] COND FALSE !(\read(tmp___0)) [L97] RET __utac_acc__Specification5_spec__3() [L338] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 12:53:50,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47672782-1360-45be-9ee7-3d50195b29ef/bin/uautomizer-wIGwrQj20G/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)