./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/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 437b76c0cd9dd6f0417f690a0c81e41159d0829e ................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-12-07 11:34:26,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:34:26,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:34:26,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:34:26,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:34:26,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:34:26,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:34:26,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:34:26,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:34:26,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:34:26,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:34:26,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:34:26,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:34:26,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:34:26,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:34:26,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:34:26,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:34:26,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:34:26,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:34:26,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:34:26,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:34:26,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:34:26,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:34:26,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:34:26,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:34:26,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:34:26,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:34:26,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:34:26,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:34:26,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:34:26,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:34:26,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:34:26,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:34:26,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:34:26,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:34:26,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:34:26,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:34:26,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:34:26,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:34:26,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:34:26,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:34:26,928 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 11:34:26,942 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:34:26,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:34:26,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:34:26,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:34:26,944 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:34:26,944 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 11:34:26,944 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 11:34:26,944 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 11:34:26,945 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 11:34:26,945 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 11:34:26,945 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 11:34:26,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:34:26,945 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:34:26,946 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 11:34:26,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:34:26,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:34:26,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:34:26,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 11:34:26,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 11:34:26,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 11:34:26,947 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:34:26,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:34:26,947 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 11:34:26,947 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:34:26,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 11:34:26,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:34:26,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:34:26,948 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 11:34:26,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:34:26,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:34:26,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:34:26,949 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 11:34:26,949 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 11:34:26,950 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_a2ff8664-999f-4d4a-83a6-e845e788755c/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 -> 437b76c0cd9dd6f0417f690a0c81e41159d0829e [2019-12-07 11:34:27,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:34:27,058 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:34:27,061 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:34:27,062 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:34:27,063 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:34:27,063 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2019-12-07 11:34:27,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/bin/uautomizer/data/93324e931/e904bee66ec34d0d8a2e14e0c8476ea0/FLAGd54c3c156 [2019-12-07 11:34:27,447 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:34:27,448 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2019-12-07 11:34:27,457 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/bin/uautomizer/data/93324e931/e904bee66ec34d0d8a2e14e0c8476ea0/FLAGd54c3c156 [2019-12-07 11:34:27,466 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/bin/uautomizer/data/93324e931/e904bee66ec34d0d8a2e14e0c8476ea0 [2019-12-07 11:34:27,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:34:27,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:34:27,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:34:27,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:34:27,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:34:27,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:34:27" (1/1) ... [2019-12-07 11:34:27,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2b2671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27, skipping insertion in model container [2019-12-07 11:34:27,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:34:27" (1/1) ... [2019-12-07 11:34:27,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:34:27,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:34:27,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:34:27,722 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:34:27,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:34:27,789 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:34:27,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27 WrapperNode [2019-12-07 11:34:27,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:34:27,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:34:27,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:34:27,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:34:27,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27" (1/1) ... [2019-12-07 11:34:27,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27" (1/1) ... [2019-12-07 11:34:27,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:34:27,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:34:27,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:34:27,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:34:27,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27" (1/1) ... [2019-12-07 11:34:27,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27" (1/1) ... [2019-12-07 11:34:27,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27" (1/1) ... [2019-12-07 11:34:27,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27" (1/1) ... [2019-12-07 11:34:27,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27" (1/1) ... [2019-12-07 11:34:27,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27" (1/1) ... [2019-12-07 11:34:27,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27" (1/1) ... [2019-12-07 11:34:27,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:34:27,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:34:27,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:34:27,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:34:27,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/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 [2019-12-07 11:34:27,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:34:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 11:34:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:34:27,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:34:28,296 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:34:28,296 INFO L287 CfgBuilder]: Removed 118 assume(true) statements. [2019-12-07 11:34:28,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:34:28 BoogieIcfgContainer [2019-12-07 11:34:28,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:34:28,298 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 11:34:28,298 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 11:34:28,300 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 11:34:28,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:34:28,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 11:34:27" (1/3) ... [2019-12-07 11:34:28,301 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@796c1360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 11:34:28, skipping insertion in model container [2019-12-07 11:34:28,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:34:28,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:27" (2/3) ... [2019-12-07 11:34:28,302 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@796c1360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 11:34:28, skipping insertion in model container [2019-12-07 11:34:28,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:34:28,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:34:28" (3/3) ... [2019-12-07 11:34:28,303 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2019-12-07 11:34:28,331 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 11:34:28,331 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 11:34:28,331 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 11:34:28,331 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:34:28,331 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:34:28,331 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 11:34:28,331 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:34:28,331 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 11:34:28,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-12-07 11:34:28,360 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-12-07 11:34:28,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:34:28,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:34:28,365 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 11:34:28,365 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:34:28,365 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 11:34:28,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-12-07 11:34:28,370 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2019-12-07 11:34:28,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:34:28,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:34:28,370 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 11:34:28,370 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:34:28,374 INFO L794 eck$LassoCheckResult]: Stem: 50#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 14#L-1true havoc main_#res;havoc main_#t~ret24, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 51#L531true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 70#L539true main_#t~ret24 := valid_product_#res;main_~tmp~4 := main_#t~ret24;havoc main_#t~ret24; 72#L400true assume 0 != main_~tmp~4; 63#L374true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 43#L918-1true [2019-12-07 11:34:28,374 INFO L796 eck$LassoCheckResult]: Loop: 43#L918-1true assume !false; 71#L56true assume test_~splverifierCounter~0 < 4; 88#L57true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 22#L65true assume !(0 != test_~tmp~0); 18#L65-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 84#L75true assume !(0 != test_~tmp___0~0); 82#L75-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 67#L85true assume 0 != test_~tmp___2~0; 4#L91-1true assume !(0 != ~pumpRunning~0); 52#L128true assume !(0 != ~systemActive~0); 9#L135true havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 45#L490true __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; 41#L918true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 43#L918-1true [2019-12-07 11:34:28,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:28,378 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 11:34:28,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:34:28,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910423995] [2019-12-07 11:34:28,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:34:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:28,578 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:34:28,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:28,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1672602485, now seen corresponding path program 1 times [2019-12-07 11:34:28,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:34:28,579 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54918409] [2019-12-07 11:34:28,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:34:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:28,589 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:34:28,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:28,590 INFO L82 PathProgramCache]: Analyzing trace with hash 41676453, now seen corresponding path program 1 times [2019-12-07 11:34:28,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:34:28,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257829949] [2019-12-07 11:34:28,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:34:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:34:28,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:34:28,668 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257829949] [2019-12-07 11:34:28,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:34:28,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 11:34:28,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213690314] [2019-12-07 11:34:28,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:34:28,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:34:28,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:34:28,732 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 6 states. [2019-12-07 11:34:28,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:34:28,849 INFO L93 Difference]: Finished difference Result 216 states and 300 transitions. [2019-12-07 11:34:28,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:34:28,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 216 states and 300 transitions. [2019-12-07 11:34:28,857 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 137 [2019-12-07 11:34:28,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 216 states to 195 states and 279 transitions. [2019-12-07 11:34:28,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2019-12-07 11:34:28,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2019-12-07 11:34:28,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 279 transitions. [2019-12-07 11:34:28,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 11:34:28,866 INFO L688 BuchiCegarLoop]: Abstraction has 195 states and 279 transitions. [2019-12-07 11:34:28,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 279 transitions. [2019-12-07 11:34:28,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 120. [2019-12-07 11:34:28,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 11:34:28,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2019-12-07 11:34:28,891 INFO L711 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2019-12-07 11:34:28,891 INFO L591 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2019-12-07 11:34:28,891 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 11:34:28,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2019-12-07 11:34:28,893 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2019-12-07 11:34:28,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:34:28,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:34:28,894 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 11:34:28,894 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:34:28,894 INFO L794 eck$LassoCheckResult]: Stem: 377#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 336#L-1 havoc main_#res;havoc main_#t~ret24, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 337#L531 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 378#L539 main_#t~ret24 := valid_product_#res;main_~tmp~4 := main_#t~ret24;havoc main_#t~ret24; 393#L400 assume 0 != main_~tmp~4; 388#L374 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 371#L918-1 [2019-12-07 11:34:28,894 INFO L796 eck$LassoCheckResult]: Loop: 371#L918-1 assume !false; 372#L56 assume test_~splverifierCounter~0 < 4; 394#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 348#L65 assume !(0 != test_~tmp~0); 342#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 343#L75 assume !(0 != test_~tmp___0~0); 397#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 392#L85 assume 0 != test_~tmp___2~0; 320#L91-1 assume !(0 != ~pumpRunning~0); 322#L128 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 345#L160 assume !(0 == ~pumpRunning~0); 326#L135 havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 331#L490 __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; 370#L918 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 371#L918-1 [2019-12-07 11:34:28,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:28,894 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 11:34:28,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:34:28,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7169467] [2019-12-07 11:34:28,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:34:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:28,969 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:34:28,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:28,970 INFO L82 PathProgramCache]: Analyzing trace with hash -352838725, now seen corresponding path program 1 times [2019-12-07 11:34:28,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:34:28,970 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007732546] [2019-12-07 11:34:28,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:34:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:34:28,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:34:28,981 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007732546] [2019-12-07 11:34:28,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:34:28,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 11:34:28,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062534843] [2019-12-07 11:34:28,982 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 11:34:28,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:34:28,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:34:28,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:34:28,982 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 Second operand 3 states. [2019-12-07 11:34:29,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:34:29,027 INFO L93 Difference]: Finished difference Result 159 states and 214 transitions. [2019-12-07 11:34:29,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:34:29,028 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 214 transitions. [2019-12-07 11:34:29,030 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2019-12-07 11:34:29,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 214 transitions. [2019-12-07 11:34:29,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2019-12-07 11:34:29,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2019-12-07 11:34:29,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 214 transitions. [2019-12-07 11:34:29,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 11:34:29,033 INFO L688 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2019-12-07 11:34:29,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 214 transitions. [2019-12-07 11:34:29,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-12-07 11:34:29,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-12-07 11:34:29,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 214 transitions. [2019-12-07 11:34:29,040 INFO L711 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2019-12-07 11:34:29,040 INFO L591 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2019-12-07 11:34:29,041 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 11:34:29,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 214 transitions. [2019-12-07 11:34:29,042 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2019-12-07 11:34:29,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:34:29,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:34:29,042 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 11:34:29,042 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:34:29,042 INFO L794 eck$LassoCheckResult]: Stem: 678#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(77, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(101, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(116, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(104, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string30.base, #t~string30.offset, 1);call write~init~int(82, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(73, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(84, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 4 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(75, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 626#L-1 havoc main_#res;havoc main_#t~ret24, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 627#L531 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 679#L539 main_#t~ret24 := valid_product_#res;main_~tmp~4 := main_#t~ret24;havoc main_#t~ret24; 699#L400 assume 0 != main_~tmp~4; 692#L374 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 664#L918-1 [2019-12-07 11:34:29,043 INFO L796 eck$LassoCheckResult]: Loop: 664#L918-1 assume !false; 747#L56 assume test_~splverifierCounter~0 < 4; 707#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 708#L65 assume !(0 != test_~tmp~0); 630#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 631#L75 assume !(0 != test_~tmp___0~0); 750#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 696#L85 assume 0 != test_~tmp___2~0; 605#L91-1 assume !(0 != ~pumpRunning~0); 606#L128 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 632#L160 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 633#L498 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 681#L503 isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; 700#L280 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 706#L280-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 669#L286 processEnvironment_#t~ret4 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; 649#L164 assume !(0 != processEnvironment_~tmp~1); 608#L135 havoc __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_#t~ret72, __utac_acc__Specification4_spec__1_~tmp~8, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~8;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 670#L490 __utac_acc__Specification4_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~8 := __utac_acc__Specification4_spec__1_#t~ret71;havoc __utac_acc__Specification4_spec__1_#t~ret71; 662#L918 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8); 664#L918-1 [2019-12-07 11:34:29,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:29,043 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-12-07 11:34:29,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:34:29,043 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455087767] [2019-12-07 11:34:29,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:34:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:29,088 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:34:29,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:29,088 INFO L82 PathProgramCache]: Analyzing trace with hash -539212889, now seen corresponding path program 1 times [2019-12-07 11:34:29,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:34:29,089 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543329846] [2019-12-07 11:34:29,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:34:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:29,099 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:34:29,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:29,100 INFO L82 PathProgramCache]: Analyzing trace with hash -524500915, now seen corresponding path program 1 times [2019-12-07 11:34:29,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:34:29,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952553867] [2019-12-07 11:34:29,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:34:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:29,153 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:34:51,978 WARN L192 SmtUtils]: Spent 22.71 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 11:35:04,020 WARN L192 SmtUtils]: Spent 12.04 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 11:35:04,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 11:35:04 BoogieIcfgContainer [2019-12-07 11:35:04,072 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 11:35:04,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:35:04,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:35:04,073 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:35:04,073 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:34:28" (3/4) ... [2019-12-07 11:35:04,075 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 11:35:04,111 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a2ff8664-999f-4d4a-83a6-e845e788755c/bin/uautomizer/witness.graphml [2019-12-07 11:35:04,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:35:04,112 INFO L168 Benchmark]: Toolchain (without parser) took 36642.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 939.8 MB in the beginning and 1.0 GB in the end (delta: -80.9 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:04,112 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:35:04,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:04,113 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:04,113 INFO L168 Benchmark]: Boogie Preprocessor took 27.56 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:35:04,113 INFO L168 Benchmark]: RCFGBuilder took 437.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:04,114 INFO L168 Benchmark]: BuchiAutomizer took 35774.63 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 47.2 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -1.8 MB). Peak memory consumption was 243.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:04,114 INFO L168 Benchmark]: Witness Printer took 38.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:35:04,115 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 319.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.56 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 437.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35774.63 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 47.2 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -1.8 MB). Peak memory consumption was 243.2 MB. Max. memory is 11.5 GB. * Witness Printer took 38.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 159 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 35.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 159 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 227 SDtfs, 537 SDslu, 626 SDs, 0 SdLazy, 64 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 55]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4276} State at position 1 is {NULL=0, NULL=0, NULL=7242, NULL=7235, NULL=0, NULL=4276, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@449a34ac=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b8e4b51=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@272196ea=52, NULL=7232, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72e57b18=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6aa2c167=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@709b7598=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38a83eac=0, NULL=7247, NULL=7238, methaneLevelCritical=0, NULL=7244, tmp___0=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=7227, NULL=0, tmp___1=0, NULL=0, NULL=7234, NULL=7237, cleanupTimeShifts=4, tmp=0, NULL=7241, NULL=4278, tmp___0=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=7228, NULL=0, NULL=7240, \result=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9b4bab9=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=7239, head=0, pumpRunning=0, NULL=7230, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b2f0f4d=0, tmp=1, NULL=7231, NULL=0, NULL=0, NULL=0, \result=1, NULL=7243, NULL=7233, retValue_acc=1, tmp=1, tmp=1, tmp___2=52, NULL=7236, NULL=4277, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=7246, tmp=0, head=0, NULL=0, NULL=0, NULL=0, NULL=7229, NULL=4279, NULL=0, NULL=7226, NULL=7245} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L315] int cleanupTimeShifts = 4; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L713] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L391] int retValue_acc ; [L392] int tmp ; [L535] int retValue_acc ; [L538] retValue_acc = 1 [L539] return (retValue_acc); [L398] tmp = valid_product() [L400] COND TRUE \read(tmp) [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 Loop: [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L128] COND FALSE !(\read(pumpRunning)) [L135] COND TRUE \read(systemActive) [L157] int tmp ; [L160] COND TRUE ! pumpRunning [L272] int retValue_acc ; [L273] int tmp ; [L274] int tmp___0 ; [L495] int retValue_acc ; [L498] COND TRUE waterLevel < 2 [L499] retValue_acc = 1 [L500] return (retValue_acc); [L278] tmp = isHighWaterSensorDry() [L280] COND TRUE \read(tmp) [L281] tmp___0 = 0 [L285] retValue_acc = tmp___0 [L286] return (retValue_acc); [L162] tmp = isHighWaterLevel() [L164] COND FALSE !(\read(tmp)) [L911] int tmp ; [L912] int tmp___0 ; [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); [L916] tmp = getWaterLevel() [L918] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...