./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3 --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 094c5cbd04c49a840d9cc3459b98e060bf3fb806 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-5709675 [2021-10-15 19:33:00,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:33:00,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:33:01,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:33:01,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:33:01,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:33:01,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:33:01,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:33:01,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:33:01,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:33:01,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:33:01,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:33:01,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:33:01,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:33:01,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:33:01,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:33:01,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:33:01,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:33:01,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:33:01,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:33:01,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:33:01,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:33:01,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:33:01,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:33:01,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:33:01,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:33:01,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:33:01,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:33:01,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:33:01,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:33:01,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:33:01,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:33:01,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:33:01,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:33:01,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:33:01,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:33:01,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:33:01,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:33:01,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:33:01,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:33:01,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:33:01,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 19:33:01,181 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:33:01,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:33:01,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:33:01,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:33:01,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:33:01,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:33:01,186 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:33:01,186 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:33:01,186 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:33:01,187 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:33:01,188 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:33:01,189 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:33:01,189 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:33:01,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:33:01,190 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:33:01,190 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:33:01,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:33:01,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:33:01,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:33:01,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:33:01,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:33:01,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:33:01,192 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:33:01,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:33:01,193 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:33:01,193 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:33:01,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:33:01,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:33:01,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:33:01,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:33:01,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:33:01,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:33:01,199 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:33:01,200 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_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 094c5cbd04c49a840d9cc3459b98e060bf3fb806 [2021-10-15 19:33:01,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:33:01,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:33:01,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:33:01,574 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:33:01,575 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:33:01,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2021-10-15 19:33:01,668 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/data/4fb3c7771/b2a4cd1612d545959979a6164cb4b917/FLAGe17637668 [2021-10-15 19:33:02,294 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:33:02,295 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2021-10-15 19:33:02,311 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/data/4fb3c7771/b2a4cd1612d545959979a6164cb4b917/FLAGe17637668 [2021-10-15 19:33:02,592 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/data/4fb3c7771/b2a4cd1612d545959979a6164cb4b917 [2021-10-15 19:33:02,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:33:02,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:33:02,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:33:02,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:33:02,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:33:02,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:33:02" (1/1) ... [2021-10-15 19:33:02,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d8cc51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:02, skipping insertion in model container [2021-10-15 19:33:02,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:33:02" (1/1) ... [2021-10-15 19:33:02,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:33:02,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:33:02,956 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_8f9ea019-dd02-4781-8c90-447fff2bcdc7/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2021-10-15 19:33:03,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:33:03,082 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:33:03,120 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_8f9ea019-dd02-4781-8c90-447fff2bcdc7/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2021-10-15 19:33:03,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:33:03,239 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:33:03,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:03 WrapperNode [2021-10-15 19:33:03,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:33:03,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:33:03,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:33:03,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:33:03,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:03" (1/1) ... [2021-10-15 19:33:03,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:03" (1/1) ... [2021-10-15 19:33:03,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:33:03,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:33:03,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:33:03,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:33:03,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:03" (1/1) ... [2021-10-15 19:33:03,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:03" (1/1) ... [2021-10-15 19:33:03,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:03" (1/1) ... [2021-10-15 19:33:03,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:03" (1/1) ... [2021-10-15 19:33:03,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:03" (1/1) ... [2021-10-15 19:33:03,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:03" (1/1) ... [2021-10-15 19:33:03,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:03" (1/1) ... [2021-10-15 19:33:03,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:33:03,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:33:03,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:33:03,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:33:03,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:03" (1/1) ... [2021-10-15 19:33:03,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:33:03,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:33:03,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:33:03,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:33:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:33:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:33:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:33:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:33:04,536 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:33:04,539 INFO L299 CfgBuilder]: Removed 130 assume(true) statements. [2021-10-15 19:33:04,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:33:04 BoogieIcfgContainer [2021-10-15 19:33:04,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:33:04,545 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:33:04,545 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:33:04,552 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:33:04,553 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:33:04,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:33:02" (1/3) ... [2021-10-15 19:33:04,556 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64ad86ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:33:04, skipping insertion in model container [2021-10-15 19:33:04,556 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:33:04,557 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:33:03" (2/3) ... [2021-10-15 19:33:04,557 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64ad86ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:33:04, skipping insertion in model container [2021-10-15 19:33:04,557 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:33:04,558 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:33:04" (3/3) ... [2021-10-15 19:33:04,559 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2021-10-15 19:33:04,633 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:33:04,634 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:33:04,634 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:33:04,634 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:33:04,634 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:33:04,634 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:33:04,635 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:33:04,635 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:33:04,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 93 states, 92 states have (on average 1.5) internal successors, (138), 92 states have internal predecessors, (138), 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) [2021-10-15 19:33:04,729 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2021-10-15 19:33:04,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:33:04,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:33:04,738 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:33:04,739 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:33:04,739 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:33:04,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 93 states, 92 states have (on average 1.5) internal successors, (138), 92 states have internal predecessors, (138), 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) [2021-10-15 19:33:04,749 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2021-10-15 19:33:04,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:33:04,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:33:04,751 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:33:04,751 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:33:04,756 INFO L791 eck$LassoCheckResult]: Stem: 71#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~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 55#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 37#L238true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 88#L246true main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 80#L193true assume 0 != main_~tmp~1; 13#L165true ~switchedOnBeforeTS~0 := 0; 49#L59true havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 66#L80-1true [2021-10-15 19:33:04,757 INFO L793 eck$LassoCheckResult]: Loop: 66#L80-1true assume !false; 16#L727true assume test_~splverifierCounter~0 < 4; 89#L728true test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 50#L736true assume !(0 != test_~tmp~5); 87#L736-1true test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 21#L746true assume !(0 != test_~tmp___0~1); 14#L746-1true test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 12#L756true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 36#L764-2true havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 27#L898true __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 15#L69true assume !(0 != ~pumpRunning~0); 6#L795true assume !(0 != ~systemActive~0); 73#L802true havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 63#L696true __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 10#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 66#L80-1true [2021-10-15 19:33:04,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:33:04,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-15 19:33:04,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:33:04,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632112859] [2021-10-15 19:33:04,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:33:04,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:33:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:33:05,090 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:33:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:33:05,362 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:33:05,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:33:05,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1011776589, now seen corresponding path program 1 times [2021-10-15 19:33:05,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:33:05,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632423360] [2021-10-15 19:33:05,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:33:05,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:33:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:33:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:33:05,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:33:05,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632423360] [2021-10-15 19:33:05,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632423360] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:33:05,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:33:05,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:33:05,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561918706] [2021-10-15 19:33:05,500 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 19:33:05,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:33:05,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:33:05,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:33:05,525 INFO L87 Difference]: Start difference. First operand has 93 states, 92 states have (on average 1.5) internal successors, (138), 92 states have internal predecessors, (138), 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 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-15 19:33:05,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:33:05,597 INFO L93 Difference]: Finished difference Result 93 states and 128 transitions. [2021-10-15 19:33:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:33:05,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 128 transitions. [2021-10-15 19:33:05,607 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2021-10-15 19:33:05,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 86 states and 120 transitions. [2021-10-15 19:33:05,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2021-10-15 19:33:05,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2021-10-15 19:33:05,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 120 transitions. [2021-10-15 19:33:05,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:33:05,627 INFO L681 BuchiCegarLoop]: Abstraction has 86 states and 120 transitions. [2021-10-15 19:33:05,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 120 transitions. [2021-10-15 19:33:05,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-10-15 19:33:05,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 86 states have (on average 1.3953488372093024) internal successors, (120), 85 states have internal predecessors, (120), 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) [2021-10-15 19:33:05,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 120 transitions. [2021-10-15 19:33:05,688 INFO L704 BuchiCegarLoop]: Abstraction has 86 states and 120 transitions. [2021-10-15 19:33:05,688 INFO L587 BuchiCegarLoop]: Abstraction has 86 states and 120 transitions. [2021-10-15 19:33:05,688 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:33:05,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 120 transitions. [2021-10-15 19:33:05,692 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2021-10-15 19:33:05,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:33:05,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:33:05,693 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:33:05,693 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:33:05,694 INFO L791 eck$LassoCheckResult]: Stem: 274#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~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 267#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 249#L238 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 250#L246 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 279#L193 assume 0 != main_~tmp~1; 216#L165 ~switchedOnBeforeTS~0 := 0; 217#L59 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 209#L80-1 [2021-10-15 19:33:05,694 INFO L793 eck$LassoCheckResult]: Loop: 209#L80-1 assume !false; 221#L727 assume test_~splverifierCounter~0 < 4; 222#L728 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 260#L736 assume !(0 != test_~tmp~5); 259#L736-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 229#L746 assume !(0 != test_~tmp___0~1); 218#L746-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 213#L756 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 215#L764-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 235#L898 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 219#L69 assume !(0 != ~pumpRunning~0); 200#L795 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 201#L827 assume !(0 == ~pumpRunning~0); 244#L802 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 269#L696 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 208#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 209#L80-1 [2021-10-15 19:33:05,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:33:05,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-15 19:33:05,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:33:05,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392414277] [2021-10-15 19:33:05,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:33:05,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:33:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:33:05,809 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:33:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:33:05,896 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:33:05,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:33:05,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1258533763, now seen corresponding path program 1 times [2021-10-15 19:33:05,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:33:05,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640143345] [2021-10-15 19:33:05,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:33:05,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:33:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:33:05,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:33:05,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:33:05,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640143345] [2021-10-15 19:33:05,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640143345] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:33:05,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:33:05,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:33:05,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745675176] [2021-10-15 19:33:05,945 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 19:33:05,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:33:05,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:33:05,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:33:05,950 INFO L87 Difference]: Start difference. First operand 86 states and 120 transitions. cyclomatic complexity: 36 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) [2021-10-15 19:33:06,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:33:06,095 INFO L93 Difference]: Finished difference Result 135 states and 182 transitions. [2021-10-15 19:33:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:33:06,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 135 states and 182 transitions. [2021-10-15 19:33:06,105 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 94 [2021-10-15 19:33:06,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 135 states to 135 states and 182 transitions. [2021-10-15 19:33:06,108 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2021-10-15 19:33:06,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2021-10-15 19:33:06,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 182 transitions. [2021-10-15 19:33:06,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:33:06,110 INFO L681 BuchiCegarLoop]: Abstraction has 135 states and 182 transitions. [2021-10-15 19:33:06,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 182 transitions. [2021-10-15 19:33:06,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-10-15 19:33:06,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 135 states have (on average 1.348148148148148) internal successors, (182), 134 states have internal predecessors, (182), 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) [2021-10-15 19:33:06,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 182 transitions. [2021-10-15 19:33:06,135 INFO L704 BuchiCegarLoop]: Abstraction has 135 states and 182 transitions. [2021-10-15 19:33:06,135 INFO L587 BuchiCegarLoop]: Abstraction has 135 states and 182 transitions. [2021-10-15 19:33:06,135 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 19:33:06,136 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 182 transitions. [2021-10-15 19:33:06,138 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 94 [2021-10-15 19:33:06,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:33:06,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:33:06,140 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:33:06,140 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] [2021-10-15 19:33:06,140 INFO L791 eck$LassoCheckResult]: Stem: 506#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~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 494#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 477#L238 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 478#L246 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 514#L193 assume 0 != main_~tmp~1; 443#L165 ~switchedOnBeforeTS~0 := 0; 444#L59 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 489#L80-1 [2021-10-15 19:33:06,141 INFO L793 eck$LassoCheckResult]: Loop: 489#L80-1 assume !false; 531#L727 assume test_~splverifierCounter~0 < 4; 530#L728 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 529#L736 assume !(0 != test_~tmp~5); 517#L736-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 453#L746 assume !(0 != test_~tmp___0~1); 445#L746-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 440#L756 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 442#L764-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 463#L898 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 446#L69 assume !(0 != ~pumpRunning~0); 427#L795 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 428#L827 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret80, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 512#L704 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 501#L709 isHighWaterLevel_#t~ret80 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret80;havoc isHighWaterLevel_#t~ret80; 502#L947 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 483#L947-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 484#L953 processEnvironment_#t~ret61 := isHighWaterLevel_#res;processEnvironment_~tmp~6 := processEnvironment_#t~ret61;havoc processEnvironment_#t~ret61; 468#L831 assume !(0 != processEnvironment_~tmp~6); 470#L802 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 536#L696 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 532#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 489#L80-1 [2021-10-15 19:33:06,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:33:06,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-15 19:33:06,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:33:06,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86570232] [2021-10-15 19:33:06,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:33:06,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:33:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:33:06,228 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:33:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:33:06,292 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:33:06,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:33:06,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1416842961, now seen corresponding path program 1 times [2021-10-15 19:33:06,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:33:06,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864521838] [2021-10-15 19:33:06,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:33:06,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:33:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:33:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:33:06,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:33:06,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864521838] [2021-10-15 19:33:06,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864521838] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:33:06,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:33:06,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:33:06,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331804448] [2021-10-15 19:33:06,380 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 19:33:06,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:33:06,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:33:06,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:33:06,381 INFO L87 Difference]: Start difference. First operand 135 states and 182 transitions. cyclomatic complexity: 49 Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-15 19:33:06,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:33:06,604 INFO L93 Difference]: Finished difference Result 357 states and 473 transitions. [2021-10-15 19:33:06,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:33:06,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 357 states and 473 transitions. [2021-10-15 19:33:06,612 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 235 [2021-10-15 19:33:06,622 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 357 states to 357 states and 473 transitions. [2021-10-15 19:33:06,622 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 357 [2021-10-15 19:33:06,624 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 357 [2021-10-15 19:33:06,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 357 states and 473 transitions. [2021-10-15 19:33:06,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:33:06,636 INFO L681 BuchiCegarLoop]: Abstraction has 357 states and 473 transitions. [2021-10-15 19:33:06,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states and 473 transitions. [2021-10-15 19:33:06,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 263. [2021-10-15 19:33:06,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 263 states have (on average 1.3155893536121672) internal successors, (346), 262 states have internal predecessors, (346), 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) [2021-10-15 19:33:06,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 346 transitions. [2021-10-15 19:33:06,671 INFO L704 BuchiCegarLoop]: Abstraction has 263 states and 346 transitions. [2021-10-15 19:33:06,671 INFO L587 BuchiCegarLoop]: Abstraction has 263 states and 346 transitions. [2021-10-15 19:33:06,677 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-15 19:33:06,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 263 states and 346 transitions. [2021-10-15 19:33:06,681 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 188 [2021-10-15 19:33:06,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:33:06,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:33:06,685 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:33:06,687 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] [2021-10-15 19:33:06,687 INFO L791 eck$LassoCheckResult]: Stem: 1017#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~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(30);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(9);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1004#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 985#L238 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 986#L246 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 1024#L193 assume 0 != main_~tmp~1; 950#L165 ~switchedOnBeforeTS~0 := 0; 951#L59 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 997#L80-1 [2021-10-15 19:33:06,688 INFO L793 eck$LassoCheckResult]: Loop: 997#L80-1 assume !false; 955#L727 assume test_~splverifierCounter~0 < 4; 956#L728 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 998#L736 assume !(0 != test_~tmp~5); 999#L736-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 961#L746 assume !(0 != test_~tmp___0~1); 952#L746-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 947#L756 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 949#L764-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 970#L898 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 971#L69 assume !(0 != ~pumpRunning~0); 935#L795 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 936#L827 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret80, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1022#L704 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1012#L709 isHighWaterLevel_#t~ret80 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret80;havoc isHighWaterLevel_#t~ret80; 1013#L947 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 991#L947-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 992#L953 processEnvironment_#t~ret61 := isHighWaterLevel_#res;processEnvironment_~tmp~6 := processEnvironment_#t~ret61;havoc processEnvironment_#t~ret61; 976#L831 assume !(0 != processEnvironment_~tmp~6); 978#L802 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1011#L696 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 945#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 946#L898-1 __utac_acc__Specification5_spec__3_#t~ret9 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 1016#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 997#L80-1 [2021-10-15 19:33:06,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:33:06,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-15 19:33:06,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:33:06,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256136] [2021-10-15 19:33:06,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:33:06,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:33:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:33:06,788 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:33:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:33:06,863 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:33:06,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:33:06,864 INFO L82 PathProgramCache]: Analyzing trace with hash -81466294, now seen corresponding path program 1 times [2021-10-15 19:33:06,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:33:06,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889498213] [2021-10-15 19:33:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:33:06,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:33:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:33:06,872 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:33:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:33:06,883 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:33:06,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:33:06,884 INFO L82 PathProgramCache]: Analyzing trace with hash -222059632, now seen corresponding path program 1 times [2021-10-15 19:33:06,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:33:06,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332887901] [2021-10-15 19:33:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:33:06,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:33:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:33:06,923 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:33:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:33:07,002 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:34:26,941 WARN L207 SmtUtils]: Spent 1.32 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-15 19:35:50,805 WARN L207 SmtUtils]: Spent 41.68 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-15 19:35:51,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:35:51 BoogieIcfgContainer [2021-10-15 19:35:51,059 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:35:51,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:35:51,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:35:51,060 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:35:51,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:33:04" (3/4) ... [2021-10-15 19:35:51,065 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-15 19:35:51,135 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:35:51,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:35:51,137 INFO L168 Benchmark]: Toolchain (without parser) took 168539.97 ms. Allocated memory was 86.0 MB in the beginning and 132.1 MB in the end (delta: 46.1 MB). Free memory was 51.2 MB in the beginning and 45.2 MB in the end (delta: 5.9 MB). Peak memory consumption was 52.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:51,138 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 56.6 MB in the beginning and 56.6 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:35:51,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.16 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 51.0 MB in the beginning and 75.1 MB in the end (delta: -24.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:51,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.82 ms. Allocated memory is still 107.0 MB. Free memory was 75.1 MB in the beginning and 71.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:51,141 INFO L168 Benchmark]: Boogie Preprocessor took 70.06 ms. Allocated memory is still 107.0 MB. Free memory was 71.8 MB in the beginning and 69.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:51,142 INFO L168 Benchmark]: RCFGBuilder took 1148.59 ms. Allocated memory is still 107.0 MB. Free memory was 69.4 MB in the beginning and 55.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:51,143 INFO L168 Benchmark]: BuchiAutomizer took 166514.33 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 55.9 MB in the beginning and 48.4 MB in the end (delta: 7.5 MB). Peak memory consumption was 56.9 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:51,144 INFO L168 Benchmark]: Witness Printer took 76.44 ms. Allocated memory is still 132.1 MB. Free memory was 48.4 MB in the beginning and 45.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:35:51,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 56.6 MB in the beginning and 56.6 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 641.16 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 51.0 MB in the beginning and 75.1 MB in the end (delta: -24.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.82 ms. Allocated memory is still 107.0 MB. Free memory was 75.1 MB in the beginning and 71.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.06 ms. Allocated memory is still 107.0 MB. Free memory was 71.8 MB in the beginning and 69.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1148.59 ms. Allocated memory is still 107.0 MB. Free memory was 69.4 MB in the beginning and 55.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 166514.33 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 55.9 MB in the beginning and 48.4 MB in the end (delta: 7.5 MB). Peak memory consumption was 56.9 MB. Max. memory is 16.1 GB. * Witness Printer took 76.44 ms. Allocated memory is still 132.1 MB. Free memory was 48.4 MB in the beginning and 45.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 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 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 5 locations. The remainder module has 263 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 166.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 165.5s. 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 102.8ms AutomataMinimizationTime, 3 MinimizatonAttempts, 94 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 263 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 402 SDtfs, 598 SDslu, 406 SDs, 0 SdLazy, 98 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 216.5ms Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 726]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4699} State at position 1 is {NULL=0, NULL=4699, NULL=23561, NULL=0, NULL=0, NULL=23563, methaneLevelCritical=0, tmp=0, NULL=23578, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6eb06bb5=0, NULL=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67693316=0, NULL=23576, retValue_acc=0, cleanupTimeShifts=4, NULL=23571, waterLevel=1, NULL=0, NULL=23570, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=23562, NULL=0, tmp=1, retValue_acc=1, NULL=0, NULL=4700, tmp___0=0, NULL=23568, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d0b7afc=0, NULL=23580, NULL=0, NULL=0, NULL=23557, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8d966e3=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=23565, tmp___0=0, NULL=0, NULL=0, NULL=23575, tmp=1, NULL=0, NULL=23556, switchedOnBeforeTS=0, NULL=23555, NULL=23567, \result=0, NULL=0, systemActive=1, NULL=23574, \result=1, NULL=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=23577, tmp___0=0, \result=0, NULL=23560, NULL=23572, NULL=23569, NULL=23566, NULL=23564, NULL=4701, retValue_acc=1, tmp___2=72, splverifierCounter=0, NULL=0, NULL=23558, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@509561ae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@482898d3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5265d585=72, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38304035=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ca8c927=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1315e41b=0, NULL=23579, NULL=23573, NULL=0, NULL=23559} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L102] int cleanupTimeShifts = 4; [L420] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L621] int waterLevel = 1; [L622] int methaneLevelCritical = 0; [L785] int pumpRunning = 0; [L786] int systemActive = 1; [L184] int retValue_acc ; [L185] int tmp ; [L242] int retValue_acc ; [L245] retValue_acc = 1 [L246] return (retValue_acc); [L191] tmp = valid_product() [L193] COND TRUE \read(tmp) [L58] switchedOnBeforeTS = 0 [L717] int splverifierCounter ; [L718] int tmp ; [L719] int tmp___0 ; [L720] int tmp___1 ; [L721] int tmp___2 ; [L724] splverifierCounter = 0 Loop: [L726] COND TRUE 1 [L728] COND TRUE splverifierCounter < 4 [L734] tmp = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp)) [L744] tmp___0 = __VERIFIER_nondet_int() [L746] COND FALSE !(\read(tmp___0)) [L754] tmp___2 = __VERIFIER_nondet_int() [L756] COND TRUE \read(tmp___2) [L961] systemActive = 1 [L894] int retValue_acc ; [L897] retValue_acc = pumpRunning [L898] return (retValue_acc); [L67] switchedOnBeforeTS = isPumpRunning() [L795] COND FALSE !(\read(pumpRunning)) [L802] COND TRUE \read(systemActive) [L824] int tmp ; [L827] COND TRUE ! pumpRunning [L939] int retValue_acc ; [L940] int tmp ; [L941] int tmp___0 ; [L701] int retValue_acc ; [L704] COND TRUE waterLevel < 2 [L705] retValue_acc = 1 [L706] return (retValue_acc); [L945] tmp = isHighWaterSensorDry() [L947] COND TRUE \read(tmp) [L948] tmp___0 = 0 [L952] retValue_acc = tmp___0 [L953] return (retValue_acc); [L829] tmp = isHighWaterLevel() [L831] COND FALSE !(\read(tmp)) [L73] int tmp ; [L74] int tmp___0 ; [L692] int retValue_acc ; [L695] retValue_acc = waterLevel [L696] return (retValue_acc); [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L894] int retValue_acc ; [L897] retValue_acc = pumpRunning [L898] return (retValue_acc); [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-15 19:35:51,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f9ea019-dd02-4781-8c90-447fff2bcdc7/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...