./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:51:48,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:51:48,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:51:48,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:51:48,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:51:48,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:51:48,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:51:48,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:51:48,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:51:48,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:51:48,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:51:48,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:51:48,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:51:48,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:51:48,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:51:48,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:51:48,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:51:48,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:51:48,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:51:48,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:51:48,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:51:48,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:51:48,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:51:48,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:51:48,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:51:48,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:51:48,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:51:48,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:51:48,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:51:48,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:51:48,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:51:48,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:51:48,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:51:48,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:51:48,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:51:48,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:51:48,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:51:48,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:51:48,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:51:48,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:51:48,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:51:48,314 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:51:48,341 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:51:48,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:51:48,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:51:48,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:51:48,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:51:48,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:51:48,344 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:51:48,345 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:51:48,345 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:51:48,345 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:51:48,346 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:51:48,346 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:51:48,346 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:51:48,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:51:48,347 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:51:48,347 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:51:48,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:51:48,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:51:48,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:51:48,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:51:48,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:51:48,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:51:48,348 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:51:48,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:51:48,349 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:51:48,349 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:51:48,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:51:48,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:51:48,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:51:48,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:51:48,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:51:48,350 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:51:48,351 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:51:48,351 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_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 [2021-10-28 08:51:48,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:51:48,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:51:48,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:51:48,637 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:51:48,637 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:51:48,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2021-10-28 08:51:48,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/data/872790a7d/573f83acad834903bc9146010a17a3d2/FLAG4b79340a4 [2021-10-28 08:51:49,198 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:51:49,200 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2021-10-28 08:51:49,220 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/data/872790a7d/573f83acad834903bc9146010a17a3d2/FLAG4b79340a4 [2021-10-28 08:51:49,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/data/872790a7d/573f83acad834903bc9146010a17a3d2 [2021-10-28 08:51:49,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:51:49,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:51:49,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:51:49,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:51:49,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:51:49,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:51:49" (1/1) ... [2021-10-28 08:51:49,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5459f44a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:49, skipping insertion in model container [2021-10-28 08:51:49,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:51:49" (1/1) ... [2021-10-28 08:51:49,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:51:49,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:51:49,829 WARN L228 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_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c[2897,2910] [2021-10-28 08:51:49,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:51:49,928 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:51:49,945 WARN L228 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_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c[2897,2910] [2021-10-28 08:51:50,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:51:50,019 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:51:50,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:50 WrapperNode [2021-10-28 08:51:50,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:51:50,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:51:50,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:51:50,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:51:50,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:50" (1/1) ... [2021-10-28 08:51:50,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:50" (1/1) ... [2021-10-28 08:51:50,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:51:50,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:51:50,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:51:50,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:51:50,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:50" (1/1) ... [2021-10-28 08:51:50,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:50" (1/1) ... [2021-10-28 08:51:50,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:50" (1/1) ... [2021-10-28 08:51:50,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:50" (1/1) ... [2021-10-28 08:51:50,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:50" (1/1) ... [2021-10-28 08:51:50,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:50" (1/1) ... [2021-10-28 08:51:50,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:50" (1/1) ... [2021-10-28 08:51:50,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:51:50,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:51:50,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:51:50,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:51:50,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:50" (1/1) ... [2021-10-28 08:51:50,209 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:50,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:50,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:50,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:51:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:51:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:51:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:51:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:51:51,340 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:51:51,341 INFO L299 CfgBuilder]: Removed 354 assume(true) statements. [2021-10-28 08:51:51,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:51:51 BoogieIcfgContainer [2021-10-28 08:51:51,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:51:51,344 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:51:51,344 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:51:51,347 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:51:51,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:51:51,348 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:51:49" (1/3) ... [2021-10-28 08:51:51,350 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@128da6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:51:51, skipping insertion in model container [2021-10-28 08:51:51,350 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:51:51,350 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:50" (2/3) ... [2021-10-28 08:51:51,350 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@128da6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:51:51, skipping insertion in model container [2021-10-28 08:51:51,351 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:51:51,351 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:51:51" (3/3) ... [2021-10-28 08:51:51,352 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2021-10-28 08:51:51,394 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:51:51,394 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:51:51,394 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:51:51,394 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:51:51,394 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:51:51,394 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:51:51,395 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:51:51,395 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:51:51,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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) [2021-10-28 08:51:51,475 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-10-28 08:51:51,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:51:51,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:51:51,487 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:51:51,487 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:51:51,487 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:51:51,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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) [2021-10-28 08:51:51,505 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-10-28 08:51:51,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:51:51,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:51:51,507 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:51:51,507 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:51:51,512 INFO L791 eck$LassoCheckResult]: Stem: 215#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 146#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 203#L1023true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 77#L1031true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 50#L140true assume 0 != main_~tmp~0; 209#L113true havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 95#L173-1true [2021-10-28 08:51:51,512 INFO L793 eck$LassoCheckResult]: Loop: 95#L173-1true assume !false; 92#L204true assume test_~splverifierCounter~0 < 4; 66#L205true test_~tmp~2 := test_#t~nondet10;havoc test_#t~nondet10; 100#L213true assume !(0 != test_~tmp~2); 212#L213-1true test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 61#L223true assume !(0 != test_~tmp___0~1); 111#L223-1true test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 58#L233true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 106#L241-1true assume !(0 != ~pumpRunning~0); 3#L276true assume !(0 != ~systemActive~0); 200#L283true havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 59#L973true __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 51#L173true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 95#L173-1true [2021-10-28 08:51:51,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:51,522 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 08:51:51,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:51,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128119231] [2021-10-28 08:51:51,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:51,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:51,817 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:52,011 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:52,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:52,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1665583732, now seen corresponding path program 1 times [2021-10-28 08:51:52,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:52,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354445983] [2021-10-28 08:51:52,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:52,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:51:52,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:51:52,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:51:52,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354445983] [2021-10-28 08:51:52,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354445983] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:51:52,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:51:52,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:51:52,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380945867] [2021-10-28 08:51:52,114 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:51:52,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:51:52,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:51:52,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:51:52,131 INFO L87 Difference]: Start difference. First operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-10-28 08:51:52,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:51:52,237 INFO L93 Difference]: Finished difference Result 442 states and 648 transitions. [2021-10-28 08:51:52,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:51:52,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 442 states and 648 transitions. [2021-10-28 08:51:52,246 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 290 [2021-10-28 08:51:52,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 442 states to 428 states and 633 transitions. [2021-10-28 08:51:52,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 428 [2021-10-28 08:51:52,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 428 [2021-10-28 08:51:52,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 428 states and 633 transitions. [2021-10-28 08:51:52,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:51:52,269 INFO L681 BuchiCegarLoop]: Abstraction has 428 states and 633 transitions. [2021-10-28 08:51:52,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states and 633 transitions. [2021-10-28 08:51:52,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 426. [2021-10-28 08:51:52,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 426 states have (on average 1.4788732394366197) internal successors, (630), 425 states have internal predecessors, (630), 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) [2021-10-28 08:51:52,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 630 transitions. [2021-10-28 08:51:52,341 INFO L704 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2021-10-28 08:51:52,341 INFO L587 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2021-10-28 08:51:52,341 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:51:52,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 426 states and 630 transitions. [2021-10-28 08:51:52,346 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 288 [2021-10-28 08:51:52,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:51:52,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:51:52,350 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:51:52,352 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:51:52,353 INFO L791 eck$LassoCheckResult]: Stem: 915#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 873#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 874#L1023 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 808#L1031 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 761#L140 assume 0 != main_~tmp~0; 762#L113 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 764#L173-1 [2021-10-28 08:51:52,354 INFO L793 eck$LassoCheckResult]: Loop: 764#L173-1 assume !false; 825#L204 assume test_~splverifierCounter~0 < 4; 792#L205 test_~tmp~2 := test_#t~nondet10;havoc test_#t~nondet10; 793#L213 assume !(0 != test_~tmp~2); 835#L213-1 test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 927#L223 assume !(0 != test_~tmp___0~1); 925#L223-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 924#L233 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 778#L241-1 assume !(0 != ~pumpRunning~0); 675#L276 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 676#L360 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret15, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 699#L334-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 869#L308-3 assume !(0 == ~pumpRunning~0); 908#L283 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 779#L973 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 763#L173 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 764#L173-1 [2021-10-28 08:51:52,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:52,355 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 08:51:52,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:52,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144274442] [2021-10-28 08:51:52,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:52,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:52,444 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:52,556 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:52,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:52,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1220566465, now seen corresponding path program 1 times [2021-10-28 08:51:52,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:52,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031192071] [2021-10-28 08:51:52,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:52,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:51:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:51:52,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:51:52,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031192071] [2021-10-28 08:51:52,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031192071] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:51:52,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:51:52,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:51:52,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000862623] [2021-10-28 08:51:52,593 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:51:52,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:51:52,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:51:52,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:51:52,598 INFO L87 Difference]: Start difference. First operand 426 states and 630 transitions. cyclomatic complexity: 207 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-10-28 08:51:52,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:51:52,738 INFO L93 Difference]: Finished difference Result 419 states and 586 transitions. [2021-10-28 08:51:52,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:51:52,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 419 states and 586 transitions. [2021-10-28 08:51:52,745 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2021-10-28 08:51:52,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 419 states to 419 states and 586 transitions. [2021-10-28 08:51:52,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 419 [2021-10-28 08:51:52,754 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 419 [2021-10-28 08:51:52,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 586 transitions. [2021-10-28 08:51:52,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:51:52,763 INFO L681 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2021-10-28 08:51:52,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 586 transitions. [2021-10-28 08:51:52,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2021-10-28 08:51:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 419 states have (on average 1.3985680190930787) internal successors, (586), 418 states have internal predecessors, (586), 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) [2021-10-28 08:51:52,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 586 transitions. [2021-10-28 08:51:52,794 INFO L704 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2021-10-28 08:51:52,794 INFO L587 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2021-10-28 08:51:52,794 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:51:52,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 419 states and 586 transitions. [2021-10-28 08:51:52,798 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2021-10-28 08:51:52,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:51:52,799 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:51:52,801 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:51:52,801 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] [2021-10-28 08:51:52,802 INFO L791 eck$LassoCheckResult]: Stem: 1716#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1630#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1631#L1023 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1692#L1031 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1658#L140 assume 0 != main_~tmp~0; 1659#L113 havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1712#L173-1 [2021-10-28 08:51:52,802 INFO L793 eck$LassoCheckResult]: Loop: 1712#L173-1 assume !false; 1748#L204 assume test_~splverifierCounter~0 < 4; 1743#L205 test_~tmp~2 := test_#t~nondet10;havoc test_#t~nondet10; 1744#L213 assume !(0 != test_~tmp~2); 1767#L213-1 test_~tmp___0~1 := test_#t~nondet11;havoc test_#t~nondet11; 1765#L223 assume !(0 != test_~tmp___0~1); 1763#L223-1 test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 1762#L233 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1602#L241-1 assume !(0 != ~pumpRunning~0); 1529#L276 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1530#L360 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret15, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1565#L334-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1619#L308-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret35, isHighWaterLevel_~retValue_acc~3, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~3;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 1634#L981-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 1635#L986-3 isHighWaterLevel_#t~ret35 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret35;havoc isHighWaterLevel_#t~ret35; 1597#L479-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 1598#L479-11 isHighWaterLevel_~retValue_acc~3 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~3; 1552#L485-3 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 1553#L312-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1586#L283 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 1753#L973 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 1754#L173 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 1712#L173-1 [2021-10-28 08:51:52,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:52,803 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 08:51:52,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:52,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143069070] [2021-10-28 08:51:52,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:52,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:52,854 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:52,908 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:52,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:52,909 INFO L85 PathProgramCache]: Analyzing trace with hash -231328531, now seen corresponding path program 1 times [2021-10-28 08:51:52,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:52,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947970329] [2021-10-28 08:51:52,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:52,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:52,916 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:52,925 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:52,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:52,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1021976595, now seen corresponding path program 1 times [2021-10-28 08:51:52,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:52,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4646986] [2021-10-28 08:51:52,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:52,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:52,963 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:53,022 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:52:48,508 WARN L207 SmtUtils]: Spent 55.17 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 08:53:45,939 WARN L207 SmtUtils]: Spent 28.01 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 08:53:46,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:53:46 BoogieIcfgContainer [2021-10-28 08:53:46,044 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:53:46,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:53:46,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:53:46,045 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:53:46,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:51:51" (3/4) ... [2021-10-28 08:53:46,047 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 08:53:46,098 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:53:46,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:53:46,099 INFO L168 Benchmark]: Toolchain (without parser) took 116541.80 ms. Allocated memory was 107.0 MB in the beginning and 142.6 MB in the end (delta: 35.7 MB). Free memory was 72.4 MB in the beginning and 64.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:46,100 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 73.4 MB. Free memory was 47.3 MB in the beginning and 47.2 MB in the end (delta: 21.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:53:46,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.34 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 75.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:46,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.60 ms. Allocated memory is still 107.0 MB. Free memory was 75.8 MB in the beginning and 70.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:46,102 INFO L168 Benchmark]: Boogie Preprocessor took 83.40 ms. Allocated memory is still 107.0 MB. Free memory was 70.1 MB in the beginning and 65.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:46,103 INFO L168 Benchmark]: RCFGBuilder took 1145.64 ms. Allocated memory is still 107.0 MB. Free memory was 65.9 MB in the beginning and 61.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:46,103 INFO L168 Benchmark]: BuchiAutomizer took 114699.70 ms. Allocated memory was 107.0 MB in the beginning and 142.6 MB in the end (delta: 35.7 MB). Free memory was 61.2 MB in the beginning and 67.8 MB in the end (delta: -6.6 MB). Peak memory consumption was 68.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:46,104 INFO L168 Benchmark]: Witness Printer took 53.80 ms. Allocated memory is still 142.6 MB. Free memory was 67.8 MB in the beginning and 64.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:46,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 73.4 MB. Free memory was 47.3 MB in the beginning and 47.2 MB in the end (delta: 21.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 448.34 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 75.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.60 ms. Allocated memory is still 107.0 MB. Free memory was 75.8 MB in the beginning and 70.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.40 ms. Allocated memory is still 107.0 MB. Free memory was 70.1 MB in the beginning and 65.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1145.64 ms. Allocated memory is still 107.0 MB. Free memory was 65.9 MB in the beginning and 61.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 114699.70 ms. Allocated memory was 107.0 MB in the beginning and 142.6 MB in the end (delta: 35.7 MB). Free memory was 61.2 MB in the beginning and 67.8 MB in the end (delta: -6.6 MB). Peak memory consumption was 68.9 MB. Max. memory is 16.1 GB. * Witness Printer took 53.80 ms. Allocated memory is still 142.6 MB. Free memory was 67.8 MB in the beginning and 64.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 419 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 114.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 114.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 426 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 553 SDtfs, 496 SDslu, 392 SDs, 0 SdLazy, 53 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 203]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=25113} State at position 1 is {NULL=0, NULL=0, NULL=25130, NULL=25113, NULL=0, NULL=25120, NULL=0, NULL=25122, retValue_acc=1, methaneLevelCritical=0, tmp=0, retValue_acc=0, NULL=0, NULL=25135, NULL=0, tmp___1=0, NULL=0, NULL=25137, cleanupTimeShifts=4, waterLevel=1, NULL=0, NULL=25138, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7996b7da=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@118bf1b0=0, NULL=25129, \result=1, head=0, pumpRunning=0, tmp=1, NULL=25132, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5eab2b3d=0, NULL=0, \result=1, NULL=0, tmp=1, NULL=0, NULL=25124, NULL=0, retValue_acc=1, tmp=1, NULL=0, NULL=25119, tmp___0=0, NULL=25118, NULL=25126, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@322490fe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a5358ac=0, NULL=25136, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7954338e=76, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1337eb6=0, head=0, NULL=0, NULL=0, tmp=0, NULL=25116, NULL=25140, tmp=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@446933d2=0, NULL=25139, tmp___0=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f84847d=0, NULL=0, tmp___0=0, NULL=25123, tmp=0, NULL=25133, NULL=0, systemActive=1, NULL=25134, \result=1, NULL=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=25114, \result=0, NULL=25131, NULL=25128, NULL=25141, NULL=25121, NULL=25115, tmp___2=76, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=25117, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@221ca4c=0, NULL=25125, NULL=0, NULL=0, NULL=0, NULL=25127, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c6d3307=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L269] int pumpRunning = 0; [L270] int systemActive = 1; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L898] int waterLevel = 1; [L899] int methaneLevelCritical = 0; [L131] int retValue_acc ; [L132] int tmp ; [L1027] int retValue_acc ; [L1030] retValue_acc = 1 [L1031] return (retValue_acc); [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L194] int splverifierCounter ; [L195] int tmp ; [L196] int tmp___0 ; [L197] int tmp___1 ; [L198] int tmp___2 ; [L201] splverifierCounter = 0 Loop: [L203] COND TRUE 1 [L205] COND TRUE splverifierCounter < 4 [L211] tmp = __VERIFIER_nondet_int() [L213] COND FALSE !(\read(tmp)) [L221] tmp___0 = __VERIFIER_nondet_int() [L223] COND FALSE !(\read(tmp___0)) [L231] tmp___2 = __VERIFIER_nondet_int() [L233] COND TRUE \read(tmp___2) [L527] systemActive = 1 [L276] COND FALSE !(\read(pumpRunning)) [L283] COND TRUE \read(systemActive) [L357] int tmp ; [L360] COND FALSE !(\read(pumpRunning)) [L331] int tmp ; [L334] COND FALSE !(\read(pumpRunning)) [L305] int tmp ; [L308] COND TRUE ! pumpRunning [L471] int retValue_acc ; [L472] int tmp ; [L473] int tmp___0 ; [L978] int retValue_acc ; [L981] COND TRUE waterLevel < 2 [L982] retValue_acc = 1 [L983] return (retValue_acc); [L477] tmp = isHighWaterSensorDry() [L479] COND TRUE \read(tmp) [L480] tmp___0 = 0 [L484] retValue_acc = tmp___0 [L485] return (retValue_acc); [L310] tmp = isHighWaterLevel() [L312] COND FALSE !(\read(tmp)) [L166] int tmp ; [L167] int tmp___0 ; [L969] int retValue_acc ; [L972] retValue_acc = waterLevel [L973] return (retValue_acc); [L171] tmp = getWaterLevel() [L173] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:53:46,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5bac4c-f92a-42d0-bec3-2fabaf416c64/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...