./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer --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 39d8dc1866aa4a991b9aaab78fce46f841a157ea ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-29 18:16:59,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:16:59,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:16:59,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:16:59,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:16:59,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:16:59,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:16:59,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:16:59,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:16:59,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:16:59,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:16:59,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:16:59,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:16:59,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:16:59,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:16:59,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:16:59,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:16:59,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:16:59,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:16:59,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:16:59,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:16:59,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:16:59,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:16:59,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:16:59,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:16:59,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:16:59,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:16:59,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:16:59,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:16:59,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:16:59,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:16:59,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:16:59,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:16:59,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:16:59,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:16:59,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:16:59,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:16:59,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:16:59,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:16:59,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:16:59,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:16:59,239 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:16:59,295 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:16:59,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:16:59,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:16:59,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:16:59,298 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:16:59,299 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:16:59,299 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:16:59,299 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:16:59,299 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:16:59,300 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:16:59,301 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:16:59,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:16:59,302 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:16:59,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:16:59,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:16:59,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:16:59,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:16:59,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:16:59,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:16:59,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:16:59,304 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:16:59,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:16:59,305 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:16:59,305 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:16:59,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:16:59,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:16:59,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:16:59,306 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:16:59,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:16:59,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:16:59,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:16:59,308 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:16:59,309 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:16:59,310 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-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39d8dc1866aa4a991b9aaab78fce46f841a157ea [2020-11-29 18:16:59,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:16:59,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:16:59,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:16:59,775 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:16:59,776 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:16:59,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2020-11-29 18:16:59,858 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/data/373a2898f/41b9fa1bf95e44d18a675df9dca34fea/FLAG7a0e8c2b6 [2020-11-29 18:17:00,682 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:17:00,683 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2020-11-29 18:17:00,708 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/data/373a2898f/41b9fa1bf95e44d18a675df9dca34fea/FLAG7a0e8c2b6 [2020-11-29 18:17:00,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/data/373a2898f/41b9fa1bf95e44d18a675df9dca34fea [2020-11-29 18:17:00,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:17:00,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:17:00,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:17:00,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:17:00,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:17:00,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:17:00" (1/1) ... [2020-11-29 18:17:00,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@308146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:00, skipping insertion in model container [2020-11-29 18:17:00,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:17:00" (1/1) ... [2020-11-29 18:17:00,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:17:00,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:17:01,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:17:01,275 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:17:01,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:17:01,478 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:17:01,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:01 WrapperNode [2020-11-29 18:17:01,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:17:01,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:17:01,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:17:01,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:17:01,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:01" (1/1) ... [2020-11-29 18:17:01,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:01" (1/1) ... [2020-11-29 18:17:01,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:17:01,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:17:01,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:17:01,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:17:01,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:01" (1/1) ... [2020-11-29 18:17:01,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:01" (1/1) ... [2020-11-29 18:17:01,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:01" (1/1) ... [2020-11-29 18:17:01,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:01" (1/1) ... [2020-11-29 18:17:01,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:01" (1/1) ... [2020-11-29 18:17:01,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:01" (1/1) ... [2020-11-29 18:17:01,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:01" (1/1) ... [2020-11-29 18:17:01,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:17:01,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:17:01,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:17:01,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:17:01,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:17:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:17:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:17:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:17:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:17:02,980 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:17:02,980 INFO L298 CfgBuilder]: Removed 136 assume(true) statements. [2020-11-29 18:17:02,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:17:02 BoogieIcfgContainer [2020-11-29 18:17:02,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:17:02,984 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:17:02,984 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:17:02,988 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:17:02,989 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:17:02,989 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:17:00" (1/3) ... [2020-11-29 18:17:02,991 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7325c433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:17:02, skipping insertion in model container [2020-11-29 18:17:02,991 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:17:02,991 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:17:01" (2/3) ... [2020-11-29 18:17:02,991 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7325c433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:17:02, skipping insertion in model container [2020-11-29 18:17:02,991 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:17:02,992 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:17:02" (3/3) ... [2020-11-29 18:17:02,993 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2020-11-29 18:17:03,067 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:17:03,067 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:17:03,067 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:17:03,068 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:17:03,068 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:17:03,068 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:17:03,068 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:17:03,068 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:17:03,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-11-29 18:17:03,133 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2020-11-29 18:17:03,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:17:03,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:17:03,147 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:03,148 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:03,148 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:17:03,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-11-29 18:17:03,156 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2020-11-29 18:17:03,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:17:03,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:17:03,157 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:03,157 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:03,165 INFO L794 eck$LassoCheckResult]: Stem: 38#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; 12#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; 4#L230true 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; 48#L238true main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 96#L185true assume 0 != main_~tmp~1; 7#L157true ~switchedOnBeforeTS~0 := 0; 10#L51true 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; 78#L72-1true [2020-11-29 18:17:03,166 INFO L796 eck$LassoCheckResult]: Loop: 78#L72-1true assume !false; 97#L719true assume test_~splverifierCounter~0 < 4; 24#L720true test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 30#L728true assume !(0 != test_~tmp~5); 33#L728-1true test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 5#L738true assume !(0 != test_~tmp___0~1); 6#L738-1true test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 79#L748true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 89#L756-2true 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; 69#L890true __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; 80#L61true assume !(0 != ~pumpRunning~0); 39#L787true assume !(0 != ~systemActive~0); 51#L794true 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; 47#L688true __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; 81#L72true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 78#L72-1true [2020-11-29 18:17:03,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:03,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 18:17:03,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:17:03,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448800215] [2020-11-29 18:17:03,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:17:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:03,547 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:03,716 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:03,771 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:17:03,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:03,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1011776591, now seen corresponding path program 1 times [2020-11-29 18:17:03,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:17:03,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791197851] [2020-11-29 18:17:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:17:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:17:03,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:17:03,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791197851] [2020-11-29 18:17:03,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:17:03,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:17:03,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109213765] [2020-11-29 18:17:03,878 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:17:03,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:17:03,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:17:03,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:17:03,899 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2020-11-29 18:17:03,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:17:03,981 INFO L93 Difference]: Finished difference Result 93 states and 128 transitions. [2020-11-29 18:17:03,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:17:03,988 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 128 transitions. [2020-11-29 18:17:03,994 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-29 18:17:04,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 86 states and 120 transitions. [2020-11-29 18:17:04,009 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2020-11-29 18:17:04,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2020-11-29 18:17:04,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 120 transitions. [2020-11-29 18:17:04,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:17:04,013 INFO L691 BuchiCegarLoop]: Abstraction has 86 states and 120 transitions. [2020-11-29 18:17:04,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 120 transitions. [2020-11-29 18:17:04,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-11-29 18:17:04,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-29 18:17:04,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 120 transitions. [2020-11-29 18:17:04,059 INFO L714 BuchiCegarLoop]: Abstraction has 86 states and 120 transitions. [2020-11-29 18:17:04,059 INFO L594 BuchiCegarLoop]: Abstraction has 86 states and 120 transitions. [2020-11-29 18:17:04,059 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:17:04,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 120 transitions. [2020-11-29 18:17:04,062 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-29 18:17:04,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:17:04,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:17:04,063 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:04,063 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:04,064 INFO L794 eck$LassoCheckResult]: Stem: 248#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; 215#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; 200#L230 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; 201#L238 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 258#L185 assume 0 != main_~tmp~1; 204#L157 ~switchedOnBeforeTS~0 := 0; 205#L51 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; 210#L72-1 [2020-11-29 18:17:04,064 INFO L796 eck$LassoCheckResult]: Loop: 210#L72-1 assume !false; 280#L719 assume test_~splverifierCounter~0 < 4; 233#L720 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 234#L728 assume !(0 != test_~tmp~5); 240#L728-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 202#L738 assume !(0 != test_~tmp___0~1); 199#L738-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 203#L748 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 279#L756-2 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; 274#L890 __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; 275#L61 assume !(0 != ~pumpRunning~0); 247#L787 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 219#L819 assume !(0 == ~pumpRunning~0); 220#L794 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; 254#L688 __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; 255#L72 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 210#L72-1 [2020-11-29 18:17:04,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:04,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 18:17:04,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:17:04,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797926350] [2020-11-29 18:17:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:17:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:04,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:04,245 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:04,283 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:17:04,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:04,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1258533765, now seen corresponding path program 1 times [2020-11-29 18:17:04,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:17:04,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139257223] [2020-11-29 18:17:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:17:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:17:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:17:04,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139257223] [2020-11-29 18:17:04,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:17:04,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:17:04,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870676629] [2020-11-29 18:17:04,312 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:17:04,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:17:04,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:17:04,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:17:04,313 INFO L87 Difference]: Start difference. First operand 86 states and 120 transitions. cyclomatic complexity: 36 Second operand 3 states. [2020-11-29 18:17:04,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:17:04,475 INFO L93 Difference]: Finished difference Result 135 states and 182 transitions. [2020-11-29 18:17:04,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:17:04,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 135 states and 182 transitions. [2020-11-29 18:17:04,480 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 94 [2020-11-29 18:17:04,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 135 states to 135 states and 182 transitions. [2020-11-29 18:17:04,482 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2020-11-29 18:17:04,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2020-11-29 18:17:04,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 182 transitions. [2020-11-29 18:17:04,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:17:04,493 INFO L691 BuchiCegarLoop]: Abstraction has 135 states and 182 transitions. [2020-11-29 18:17:04,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 182 transitions. [2020-11-29 18:17:04,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2020-11-29 18:17:04,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-11-29 18:17:04,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 182 transitions. [2020-11-29 18:17:04,513 INFO L714 BuchiCegarLoop]: Abstraction has 135 states and 182 transitions. [2020-11-29 18:17:04,513 INFO L594 BuchiCegarLoop]: Abstraction has 135 states and 182 transitions. [2020-11-29 18:17:04,514 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:17:04,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 182 transitions. [2020-11-29 18:17:04,519 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 94 [2020-11-29 18:17:04,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:17:04,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:17:04,520 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:04,520 INFO L853 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] [2020-11-29 18:17:04,520 INFO L794 eck$LassoCheckResult]: Stem: 477#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; 440#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; 427#L230 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; 428#L238 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 487#L185 assume 0 != main_~tmp~1; 431#L157 ~switchedOnBeforeTS~0 := 0; 432#L51 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; 437#L72-1 [2020-11-29 18:17:04,520 INFO L796 eck$LassoCheckResult]: Loop: 437#L72-1 assume !false; 514#L719 assume test_~splverifierCounter~0 < 4; 457#L720 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 458#L728 assume !(0 != test_~tmp~5); 467#L728-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 429#L738 assume !(0 != test_~tmp___0~1); 426#L738-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 430#L748 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 516#L756-2 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; 508#L890 __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; 509#L61 assume !(0 != ~pumpRunning~0); 478#L787 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 447#L819 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; 448#L696 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 496#L701 isHighWaterLevel_#t~ret80 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret80;havoc isHighWaterLevel_#t~ret80; 433#L939 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 434#L939-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 506#L945 processEnvironment_#t~ret61 := isHighWaterLevel_#res;processEnvironment_~tmp~6 := processEnvironment_#t~ret61;havoc processEnvironment_#t~ret61; 470#L823 assume !(0 != processEnvironment_~tmp~6); 468#L794 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; 485#L688 __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; 486#L72 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 437#L72-1 [2020-11-29 18:17:04,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:04,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 18:17:04,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:17:04,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290002267] [2020-11-29 18:17:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:17:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:04,612 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:04,685 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:04,703 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:17:04,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:04,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1416842959, now seen corresponding path program 1 times [2020-11-29 18:17:04,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:17:04,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10203169] [2020-11-29 18:17:04,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:17:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:17:04,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:17:04,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10203169] [2020-11-29 18:17:04,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:17:04,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:17:04,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12491031] [2020-11-29 18:17:04,826 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:17:04,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:17:04,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:17:04,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:17:04,827 INFO L87 Difference]: Start difference. First operand 135 states and 182 transitions. cyclomatic complexity: 49 Second operand 5 states. [2020-11-29 18:17:05,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:17:05,164 INFO L93 Difference]: Finished difference Result 520 states and 705 transitions. [2020-11-29 18:17:05,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 18:17:05,165 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 520 states and 705 transitions. [2020-11-29 18:17:05,172 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 361 [2020-11-29 18:17:05,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 520 states to 520 states and 705 transitions. [2020-11-29 18:17:05,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 520 [2020-11-29 18:17:05,190 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 520 [2020-11-29 18:17:05,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 520 states and 705 transitions. [2020-11-29 18:17:05,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:17:05,196 INFO L691 BuchiCegarLoop]: Abstraction has 520 states and 705 transitions. [2020-11-29 18:17:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states and 705 transitions. [2020-11-29 18:17:05,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 260. [2020-11-29 18:17:05,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-11-29 18:17:05,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 345 transitions. [2020-11-29 18:17:05,227 INFO L714 BuchiCegarLoop]: Abstraction has 260 states and 345 transitions. [2020-11-29 18:17:05,227 INFO L594 BuchiCegarLoop]: Abstraction has 260 states and 345 transitions. [2020-11-29 18:17:05,227 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 18:17:05,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 260 states and 345 transitions. [2020-11-29 18:17:05,230 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 186 [2020-11-29 18:17:05,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:17:05,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:17:05,231 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:17:05,232 INFO L853 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] [2020-11-29 18:17:05,232 INFO L794 eck$LassoCheckResult]: Stem: 1154#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; 1117#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; 1101#L230 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; 1102#L238 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 1169#L185 assume 0 != main_~tmp~1; 1105#L157 ~switchedOnBeforeTS~0 := 0; 1106#L51 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; 1111#L72-1 [2020-11-29 18:17:05,232 INFO L796 eck$LassoCheckResult]: Loop: 1111#L72-1 assume !false; 1303#L719 assume test_~splverifierCounter~0 < 4; 1304#L720 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 1310#L728 assume !(0 != test_~tmp~5); 1307#L728-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 1292#L738 assume !(0 != test_~tmp___0~1); 1289#L738-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 1288#L748 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1285#L756-2 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; 1283#L890 __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; 1278#L61 assume !(0 != ~pumpRunning~0); 1277#L787 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1276#L819 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; 1236#L696 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1179#L701 isHighWaterLevel_#t~ret80 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret80;havoc isHighWaterLevel_#t~ret80; 1107#L939 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 1108#L939-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1193#L945 processEnvironment_#t~ret61 := isHighWaterLevel_#res;processEnvironment_~tmp~6 := processEnvironment_#t~ret61;havoc processEnvironment_#t~ret61; 1147#L823 assume !(0 != processEnvironment_~tmp~6); 1143#L794 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; 1163#L688 __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; 1164#L72 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; 1174#L890-1 __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; 1175#L76 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1111#L72-1 [2020-11-29 18:17:05,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:05,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-11-29 18:17:05,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:17:05,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526208570] [2020-11-29 18:17:05,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:17:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:05,324 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:05,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:05,392 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:17:05,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:05,394 INFO L82 PathProgramCache]: Analyzing trace with hash -81466292, now seen corresponding path program 1 times [2020-11-29 18:17:05,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:17:05,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433559825] [2020-11-29 18:17:05,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:17:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:05,405 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:05,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:05,420 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:17:05,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:17:05,421 INFO L82 PathProgramCache]: Analyzing trace with hash -222059630, now seen corresponding path program 1 times [2020-11-29 18:17:05,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:17:05,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668676510] [2020-11-29 18:17:05,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:17:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:05,514 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:17:05,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:17:05,574 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:17:05,853 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-11-29 18:17:05,989 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-29 18:18:35,898 WARN L193 SmtUtils]: Spent 1.50 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 18:19:29,132 WARN L193 SmtUtils]: Spent 53.22 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 18:19:29,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:19:29 BoogieIcfgContainer [2020-11-29 18:19:29,274 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:19:29,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:19:29,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:19:29,275 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:19:29,276 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:17:02" (3/4) ... [2020-11-29 18:19:29,278 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:19:29,351 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cdd40fb8-2f39-47e7-93f6-0ed7601bd58b/bin/uautomizer/witness.graphml [2020-11-29 18:19:29,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:19:29,353 INFO L168 Benchmark]: Toolchain (without parser) took 148613.88 ms. Allocated memory was 102.8 MB in the beginning and 169.9 MB in the end (delta: 67.1 MB). Free memory was 74.2 MB in the beginning and 67.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 72.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:29,353 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 102.8 MB. Free memory is still 61.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:19:29,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.14 ms. Allocated memory is still 102.8 MB. Free memory was 73.9 MB in the beginning and 65.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:29,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.43 ms. Allocated memory is still 102.8 MB. Free memory was 65.8 MB in the beginning and 62.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:29,355 INFO L168 Benchmark]: Boogie Preprocessor took 92.41 ms. Allocated memory is still 102.8 MB. Free memory was 62.6 MB in the beginning and 60.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:29,356 INFO L168 Benchmark]: RCFGBuilder took 1269.43 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 60.2 MB in the beginning and 73.4 MB in the end (delta: -13.1 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:29,357 INFO L168 Benchmark]: BuchiAutomizer took 146290.42 ms. Allocated memory was 140.5 MB in the beginning and 169.9 MB in the end (delta: 29.4 MB). Free memory was 72.8 MB in the beginning and 69.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 65.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:29,358 INFO L168 Benchmark]: Witness Printer took 76.28 ms. Allocated memory is still 169.9 MB. Free memory was 69.1 MB in the beginning and 67.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:29,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 ms. Allocated memory is still 102.8 MB. Free memory is still 61.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 737.14 ms. Allocated memory is still 102.8 MB. Free memory was 73.9 MB in the beginning and 65.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 133.43 ms. Allocated memory is still 102.8 MB. Free memory was 65.8 MB in the beginning and 62.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.41 ms. Allocated memory is still 102.8 MB. Free memory was 62.6 MB in the beginning and 60.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1269.43 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 60.2 MB in the beginning and 73.4 MB in the end (delta: -13.1 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 146290.42 ms. Allocated memory was 140.5 MB in the beginning and 169.9 MB in the end (delta: 29.4 MB). Free memory was 72.8 MB in the beginning and 69.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 65.9 MB. Max. memory is 16.1 GB. * Witness Printer took 76.28 ms. Allocated memory is still 169.9 MB. Free memory was 69.1 MB in the beginning and 67.0 MB in the end (delta: 2.1 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 260 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 146.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 145.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 260 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 260 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 411 SDtfs, 751 SDslu, 559 SDs, 0 SdLazy, 126 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 718]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3221} State at position 1 is {NULL=0, NULL=3221, NULL=3245, NULL=0, NULL=0, NULL=3225, methaneLevelCritical=0, tmp=0, NULL=3230, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e52d500=0, NULL=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e1884aa=0, NULL=3235, retValue_acc=0, cleanupTimeShifts=4, NULL=3238, waterLevel=1, NULL=0, NULL=3233, \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=3249, NULL=0, tmp=1, retValue_acc=1, NULL=0, NULL=3227, tmp___0=0, NULL=3247, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78d7d97d=0, NULL=3231, NULL=0, NULL=0, NULL=3234, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bcd46dd=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=3243, tmp___0=0, NULL=0, NULL=0, NULL=3239, tmp=1, NULL=0, NULL=3232, switchedOnBeforeTS=0, NULL=3228, NULL=3240, \result=0, NULL=0, systemActive=1, NULL=3246, \result=1, NULL=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3222, tmp___0=0, \result=0, NULL=3241, NULL=3236, NULL=3229, NULL=3248, NULL=3224, NULL=3223, retValue_acc=1, tmp___2=85, splverifierCounter=0, NULL=0, NULL=3226, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@362651b7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cec5d22=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62200634=85, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@165d6f4f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f264384=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1012d05=0, NULL=3237, NULL=3242, NULL=0, NULL=3244} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L45] int switchedOnBeforeTS ; [L94] int cleanupTimeShifts = 4; [L412] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L613] int waterLevel = 1; [L614] int methaneLevelCritical = 0; [L777] int pumpRunning = 0; [L778] int systemActive = 1; [L176] int retValue_acc ; [L177] int tmp ; [L234] int retValue_acc ; [L237] retValue_acc = 1 [L238] return (retValue_acc); [L183] tmp = valid_product() [L185] COND TRUE \read(tmp) [L50] switchedOnBeforeTS = 0 [L709] int splverifierCounter ; [L710] int tmp ; [L711] int tmp___0 ; [L712] int tmp___1 ; [L713] int tmp___2 ; [L716] splverifierCounter = 0 Loop: [L718] COND TRUE 1 [L720] COND TRUE splverifierCounter < 4 [L726] tmp = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp)) [L736] tmp___0 = __VERIFIER_nondet_int() [L738] COND FALSE !(\read(tmp___0)) [L746] tmp___2 = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp___2) [L953] systemActive = 1 [L886] int retValue_acc ; [L889] retValue_acc = pumpRunning [L890] return (retValue_acc); [L59] switchedOnBeforeTS = isPumpRunning() [L787] COND FALSE !(\read(pumpRunning)) [L794] COND TRUE \read(systemActive) [L816] int tmp ; [L819] COND TRUE ! pumpRunning [L931] int retValue_acc ; [L932] int tmp ; [L933] int tmp___0 ; [L693] int retValue_acc ; [L696] COND TRUE waterLevel < 2 [L697] retValue_acc = 1 [L698] return (retValue_acc); [L937] tmp = isHighWaterSensorDry() [L939] COND TRUE \read(tmp) [L940] tmp___0 = 0 [L944] retValue_acc = tmp___0 [L945] return (retValue_acc); [L821] tmp = isHighWaterLevel() [L823] COND FALSE !(\read(tmp)) [L65] int tmp ; [L66] int tmp___0 ; [L684] int retValue_acc ; [L687] retValue_acc = waterLevel [L688] return (retValue_acc); [L70] tmp = getWaterLevel() [L72] COND TRUE tmp != 2 [L886] int retValue_acc ; [L889] retValue_acc = pumpRunning [L890] return (retValue_acc); [L74] tmp___0 = isPumpRunning() [L76] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...