./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 dac33dda1b1afd5a9a188848bdc9374832c4af5e ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 20:13:04,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:13:04,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:13:04,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:13:04,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:13:04,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:13:04,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:13:04,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:13:04,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:13:04,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:13:04,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:13:04,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:13:04,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:13:04,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:13:04,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:13:04,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:13:04,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:13:04,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:13:04,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:13:04,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:13:04,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:13:04,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:13:04,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:13:04,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:13:04,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:13:04,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:13:04,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:13:04,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:13:04,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:13:04,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:13:04,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:13:04,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:13:04,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:13:04,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:13:04,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:13:04,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:13:04,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:13:04,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:13:04,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:13:04,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:13:04,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:13:04,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:13:05,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:13:05,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:13:05,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:13:05,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:13:05,007 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:13:05,007 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:13:05,007 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:13:05,008 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:13:05,008 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:13:05,008 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:13:05,009 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:13:05,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:13:05,009 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:13:05,010 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:13:05,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:13:05,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:13:05,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:13:05,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:13:05,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:13:05,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:13:05,011 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:13:05,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:13:05,011 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:13:05,011 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:13:05,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:13:05,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:13:05,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:13:05,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:13:05,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:13:05,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:13:05,014 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:13:05,014 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dac33dda1b1afd5a9a188848bdc9374832c4af5e [2021-07-06 20:13:05,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:13:05,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:13:05,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:13:05,359 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:13:05,359 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:13:05,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2021-07-06 20:13:05,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa53c8d66/f9a3cf73624648eaa0ac3b919d051617/FLAG99dc3f110 [2021-07-06 20:13:06,120 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:13:06,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2021-07-06 20:13:06,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa53c8d66/f9a3cf73624648eaa0ac3b919d051617/FLAG99dc3f110 [2021-07-06 20:13:06,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa53c8d66/f9a3cf73624648eaa0ac3b919d051617 [2021-07-06 20:13:06,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:13:06,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:13:06,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:13:06,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:13:06,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:13:06,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:13:06" (1/1) ... [2021-07-06 20:13:06,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a17baba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:06, skipping insertion in model container [2021-07-06 20:13:06,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:13:06" (1/1) ... [2021-07-06 20:13:06,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:13:06,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:13:06,863 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c[11407,11420] [2021-07-06 20:13:06,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:13:06,931 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:13:06,988 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c[11407,11420] [2021-07-06 20:13:07,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:13:07,030 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:13:07,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:07 WrapperNode [2021-07-06 20:13:07,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:13:07,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:13:07,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:13:07,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:13:07,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:07" (1/1) ... [2021-07-06 20:13:07,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:07" (1/1) ... [2021-07-06 20:13:07,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:13:07,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:13:07,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:13:07,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:13:07,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:07" (1/1) ... [2021-07-06 20:13:07,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:07" (1/1) ... [2021-07-06 20:13:07,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:07" (1/1) ... [2021-07-06 20:13:07,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:07" (1/1) ... [2021-07-06 20:13:07,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:07" (1/1) ... [2021-07-06 20:13:07,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:07" (1/1) ... [2021-07-06 20:13:07,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:07" (1/1) ... [2021-07-06 20:13:07,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:13:07,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:13:07,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:13:07,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:13:07,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:07" (1/1) ... [2021-07-06 20:13:07,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:13:07,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:13:07,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 20:13:07,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-07-06 20:13:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:13:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:13:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:13:07,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:13:08,127 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:13:08,128 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-07-06 20:13:08,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:13:08 BoogieIcfgContainer [2021-07-06 20:13:08,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:13:08,130 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:13:08,130 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:13:08,132 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:13:08,133 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:13:08,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:13:06" (1/3) ... [2021-07-06 20:13:08,134 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33cb9faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:13:08, skipping insertion in model container [2021-07-06 20:13:08,134 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:13:08,134 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:13:07" (2/3) ... [2021-07-06 20:13:08,135 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33cb9faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:13:08, skipping insertion in model container [2021-07-06 20:13:08,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:13:08,135 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:13:08" (3/3) ... [2021-07-06 20:13:08,136 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2021-07-06 20:13:08,177 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:13:08,178 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:13:08,178 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:13:08,178 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:13:08,178 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:13:08,178 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:13:08,178 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:13:08,179 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:13:08,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 109 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:13:08,237 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-07-06 20:13:08,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:13:08,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:13:08,244 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:13:08,244 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:13:08,244 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:13:08,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 109 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:13:08,257 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-07-06 20:13:08,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:13:08,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:13:08,259 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:13:08,259 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:13:08,274 INFO L791 eck$LassoCheckResult]: Stem: 80#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 10#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 72#L837true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 77#L845true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 3#L932true assume 0 != main_~tmp~8; 49#L909true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 50#L419-1true [2021-07-06 20:13:08,275 INFO L793 eck$LassoCheckResult]: Loop: 50#L419-1true assume !false; 34#L560true assume test_~splverifierCounter~0 < 4; 91#L561true test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 95#L569true assume !(0 != test_~tmp~4); 98#L569-1true test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 37#L579true assume !(0 != test_~tmp___0~1); 38#L579-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 78#L589true assume 0 != test_~tmp___2~0; 60#L595-1true assume !(0 != ~pumpRunning~0); 30#L626true assume !(0 != ~systemActive~0); 74#L633true havoc __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 83#L495-1true __utac_acc__Specification1_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret42;havoc __utac_acc__Specification1_spec__1_#t~ret42; 46#L419true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 50#L419-1true [2021-07-06 20:13:08,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:13:08,294 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:13:08,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:13:08,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594668987] [2021-07-06 20:13:08,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:13:08,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:13:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:13:08,613 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:13:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:13:08,669 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:13:08,696 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:13:08,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:13:08,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1671401909, now seen corresponding path program 1 times [2021-07-06 20:13:08,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:13:08,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617609559] [2021-07-06 20:13:08,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:13:08,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:13:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:13:08,704 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:13:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:13:08,707 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:13:08,711 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:13:08,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:13:08,713 INFO L82 PathProgramCache]: Analyzing trace with hash 42877029, now seen corresponding path program 1 times [2021-07-06 20:13:08,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:13:08,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233417650] [2021-07-06 20:13:08,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:13:08,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:13:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:13:08,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:13:08,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:13:08,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:13:08,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:13:08,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:13:08,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:13:08,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:13:08,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:13:08,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:13:08,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:13:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:13:08,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:13:08,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233417650] [2021-07-06 20:13:08,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233417650] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:13:08,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:13:08,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:13:08,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795531492] [2021-07-06 20:13:08,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:13:08,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-06 20:13:08,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:13:08,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:13:08,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:13:08,936 INFO L87 Difference]: Start difference. First operand has 110 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 109 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:13:09,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:13:09,137 INFO L93 Difference]: Finished difference Result 264 states and 378 transitions. [2021-07-06 20:13:09,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-06 20:13:09,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 264 states and 378 transitions. [2021-07-06 20:13:09,144 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 169 [2021-07-06 20:13:09,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 264 states to 243 states and 357 transitions. [2021-07-06 20:13:09,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2021-07-06 20:13:09,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2021-07-06 20:13:09,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 357 transitions. [2021-07-06 20:13:09,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:13:09,153 INFO L681 BuchiCegarLoop]: Abstraction has 243 states and 357 transitions. [2021-07-06 20:13:09,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 357 transitions. [2021-07-06 20:13:09,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 144. [2021-07-06 20:13:09,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 1.4583333333333333) internal successors, (210), 143 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:13:09,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2021-07-06 20:13:09,183 INFO L704 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2021-07-06 20:13:09,183 INFO L587 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2021-07-06 20:13:09,184 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:13:09,184 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 210 transitions. [2021-07-06 20:13:09,185 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2021-07-06 20:13:09,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:13:09,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:13:09,186 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:13:09,186 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:13:09,186 INFO L791 eck$LassoCheckResult]: Stem: 483#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 402#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 403#L837 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 479#L845 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 392#L932 assume 0 != main_~tmp~8; 393#L909 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 462#L419-1 [2021-07-06 20:13:09,186 INFO L793 eck$LassoCheckResult]: Loop: 462#L419-1 assume !false; 445#L560 assume test_~splverifierCounter~0 < 4; 446#L561 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 486#L569 assume !(0 != test_~tmp~4); 489#L569-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 447#L579 assume !(0 != test_~tmp___0~1); 448#L579-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 450#L589 assume 0 != test_~tmp___2~0; 475#L595-1 assume !(0 != ~pumpRunning~0); 440#L626 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 420#L684 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 422#L658-1 assume !(0 == ~pumpRunning~0); 426#L633 havoc __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 480#L495-1 __utac_acc__Specification1_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret42;havoc __utac_acc__Specification1_spec__1_#t~ret42; 461#L419 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 462#L419-1 [2021-07-06 20:13:09,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:13:09,187 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:13:09,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:13:09,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350743349] [2021-07-06 20:13:09,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:13:09,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:13:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:13:09,220 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:13:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:13:09,260 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:13:09,274 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:13:09,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:13:09,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1955219778, now seen corresponding path program 1 times [2021-07-06 20:13:09,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:13:09,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830946493] [2021-07-06 20:13:09,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:13:09,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:13:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:13:09,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:13:09,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:13:09,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:13:09,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:13:09,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:13:09,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:13:09,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:13:09,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:13:09,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830946493] [2021-07-06 20:13:09,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830946493] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:13:09,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:13:09,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:13:09,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99259148] [2021-07-06 20:13:09,398 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:13:09,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:13:09,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:13:09,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:13:09,399 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. cyclomatic complexity: 69 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:13:09,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:13:09,854 INFO L93 Difference]: Finished difference Result 183 states and 250 transitions. [2021-07-06 20:13:09,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:13:09,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 250 transitions. [2021-07-06 20:13:09,856 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2021-07-06 20:13:09,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 183 states and 250 transitions. [2021-07-06 20:13:09,866 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2021-07-06 20:13:09,867 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2021-07-06 20:13:09,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 250 transitions. [2021-07-06 20:13:09,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:13:09,868 INFO L681 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2021-07-06 20:13:09,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 250 transitions. [2021-07-06 20:13:09,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-07-06 20:13:09,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 183 states have (on average 1.366120218579235) internal successors, (250), 182 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:13:09,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 250 transitions. [2021-07-06 20:13:09,890 INFO L704 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2021-07-06 20:13:09,890 INFO L587 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2021-07-06 20:13:09,890 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-07-06 20:13:09,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 250 transitions. [2021-07-06 20:13:09,892 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2021-07-06 20:13:09,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:13:09,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:13:09,893 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:13:09,893 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:13:09,893 INFO L791 eck$LassoCheckResult]: Stem: 825#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 735#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 736#L837 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 819#L845 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 725#L932 assume 0 != main_~tmp~8; 726#L909 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 802#L419-1 [2021-07-06 20:13:09,893 INFO L793 eck$LassoCheckResult]: Loop: 802#L419-1 assume !false; 894#L560 assume test_~splverifierCounter~0 < 4; 832#L561 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 833#L569 assume !(0 != test_~tmp~4); 837#L569-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 784#L579 assume !(0 != test_~tmp___0~1); 785#L579-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 787#L589 assume 0 != test_~tmp___2~0; 814#L595-1 assume !(0 != ~pumpRunning~0); 815#L626 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 755#L684 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 756#L658-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret77, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 790#L535-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 791#L540-1 isHighWaterLevel_#t~ret77 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret77;havoc isHighWaterLevel_#t~ret77; 748#L786-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 727#L786-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 728#L792-1 processEnvironment__wrappee__highWaterSensor_#t~ret58 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret58;havoc processEnvironment__wrappee__highWaterSensor_#t~ret58; 764#L662-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 761#L633 havoc __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 898#L495-1 __utac_acc__Specification1_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret42;havoc __utac_acc__Specification1_spec__1_#t~ret42; 896#L419 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 802#L419-1 [2021-07-06 20:13:09,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:13:09,894 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-07-06 20:13:09,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:13:09,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570653039] [2021-07-06 20:13:09,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:13:09,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:13:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:13:09,951 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:13:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:13:10,002 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:13:10,026 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:13:10,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:13:10,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1592970094, now seen corresponding path program 1 times [2021-07-06 20:13:10,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:13:10,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855948706] [2021-07-06 20:13:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:13:10,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:13:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:13:10,032 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:13:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:13:10,035 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:13:10,038 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:13:10,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:13:10,039 INFO L82 PathProgramCache]: Analyzing trace with hash 2049041288, now seen corresponding path program 1 times [2021-07-06 20:13:10,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:13:10,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706681244] [2021-07-06 20:13:10,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:13:10,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:13:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:13:10,083 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:13:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:13:10,137 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:13:10,147 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:13:10,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:13:10,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-07-06 20:13:57,785 WARN L205 SmtUtils]: Spent 47.47 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:13:57,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:13:57,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:14:20,450 WARN L205 SmtUtils]: Spent 22.47 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:14:20,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:14:20 BoogieIcfgContainer [2021-07-06 20:14:20,589 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:14:20,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:14:20,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:14:20,590 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:14:20,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:13:08" (3/4) ... [2021-07-06 20:14:20,594 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:14:20,644 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:14:20,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:14:20,645 INFO L168 Benchmark]: Toolchain (without parser) took 74280.16 ms. Allocated memory was 69.2 MB in the beginning and 117.4 MB in the end (delta: 48.2 MB). Free memory was 51.0 MB in the beginning and 29.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 67.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:14:20,646 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 69.2 MB. Free memory was 51.7 MB in the beginning and 51.7 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:14:20,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.64 ms. Allocated memory is still 69.2 MB. Free memory was 50.8 MB in the beginning and 42.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:14:20,646 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.15 ms. Allocated memory is still 69.2 MB. Free memory was 42.8 MB in the beginning and 39.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:14:20,646 INFO L168 Benchmark]: Boogie Preprocessor took 72.76 ms. Allocated memory is still 69.2 MB. Free memory was 39.3 MB in the beginning and 36.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:14:20,647 INFO L168 Benchmark]: RCFGBuilder took 936.88 ms. Allocated memory was 69.2 MB in the beginning and 96.5 MB in the end (delta: 27.3 MB). Free memory was 36.7 MB in the beginning and 54.1 MB in the end (delta: -17.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2021-07-06 20:14:20,647 INFO L168 Benchmark]: BuchiAutomizer took 72459.43 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.1 MB in the beginning and 32.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:14:20,647 INFO L168 Benchmark]: Witness Printer took 54.53 ms. Allocated memory is still 117.4 MB. Free memory was 31.8 MB in the beginning and 29.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:14:20,649 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 69.2 MB. Free memory was 51.7 MB in the beginning and 51.7 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 653.64 ms. Allocated memory is still 69.2 MB. Free memory was 50.8 MB in the beginning and 42.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.15 ms. Allocated memory is still 69.2 MB. Free memory was 42.8 MB in the beginning and 39.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.76 ms. Allocated memory is still 69.2 MB. Free memory was 39.3 MB in the beginning and 36.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 936.88 ms. Allocated memory was 69.2 MB in the beginning and 96.5 MB in the end (delta: 27.3 MB). Free memory was 36.7 MB in the beginning and 54.1 MB in the end (delta: -17.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 72459.43 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.1 MB in the beginning and 32.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. * Witness Printer took 54.53 ms. Allocated memory is still 117.4 MB. Free memory was 31.8 MB in the beginning and 29.7 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 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 183 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 72.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 71.5s. Construction of modules took 0.5s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 41.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 99 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 183 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 303 SDtfs, 706 SDslu, 752 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 545.5ms 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: 559]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=23169} State at position 1 is {NULL=0, NULL=0, NULL=23169, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76991758=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46b5ecd0=0, NULL=23197, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40dc9818=0, retValue_acc=1, tmp=0, NULL=0, retValue_acc=0, NULL=23185, tmp___1=0, NULL=23195, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@787d8442=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20086cb1=0, NULL=0, NULL=23194, NULL=23172, cleanupTimeShifts=4, NULL=23183, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=23182, NULL=0, NULL=0, NULL=0, tmp=0, tmp=1, NULL=0, \result=1, NULL=0, NULL=0, NULL=0, tmp=1, NULL=23191, tmp___0=0, NULL=23192, NULL=23173, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f4892f0=0, head=0, NULL=0, NULL=0, tmp=0, NULL=23170, NULL=0, NULL=0, NULL=23175, NULL=0, NULL=0, NULL=23180, NULL=23177, NULL=23181, tmp___0=0, NULL=0, NULL=0, tmp___0=0, NULL=23196, NULL=23187, NULL=23193, tmp=0, NULL=23184, NULL=0, NULL=0, NULL=0, systemActive=1, retValue_acc=0, \result=0, NULL=23178, retValue_acc=0, NULL=0, NULL=23188, NULL=23176, \result=0, NULL=23186, NULL=0, NULL=23171, NULL=23189, tmp___2=62, splverifierCounter=0, NULL=0, \result=0, NULL=23190, NULL=23179, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a322a42=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a25af00=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@724230b5=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c3ae1a5=0, NULL=23174} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L452] int waterLevel = 1; [L453] int methaneLevelCritical = 0; [L619] int pumpRunning = 0; [L620] int systemActive = 1; [L850] int cleanupTimeShifts = 4; [L923] int retValue_acc ; [L924] int tmp ; [L841] int retValue_acc ; [L844] retValue_acc = 1 [L845] return (retValue_acc); [L930] tmp = valid_product() [L932] COND TRUE \read(tmp) [L550] int splverifierCounter ; [L551] int tmp ; [L552] int tmp___0 ; [L553] int tmp___1 ; [L554] int tmp___2 ; [L557] splverifierCounter = 0 Loop: [L559] COND TRUE 1 [L561] COND TRUE splverifierCounter < 4 [L567] tmp = __VERIFIER_nondet_int() [L569] COND FALSE !(\read(tmp)) [L577] tmp___0 = __VERIFIER_nondet_int() [L579] COND FALSE !(\read(tmp___0)) [L587] tmp___2 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___2) [L626] COND FALSE !(\read(pumpRunning)) [L633] COND TRUE \read(systemActive) [L681] int tmp ; [L684] COND FALSE !(\read(pumpRunning)) [L655] int tmp ; [L658] COND TRUE ! pumpRunning [L778] int retValue_acc ; [L779] int tmp ; [L780] int tmp___0 ; [L532] int retValue_acc ; [L535] COND TRUE waterLevel < 2 [L536] retValue_acc = 1 [L537] return (retValue_acc); [L784] tmp = isHighWaterSensorDry() [L786] COND TRUE \read(tmp) [L787] tmp___0 = 0 [L791] retValue_acc = tmp___0 [L792] return (retValue_acc); [L660] tmp = isHighWaterLevel() [L662] COND FALSE !(\read(tmp)) [L412] int tmp ; [L413] int tmp___0 ; [L491] int retValue_acc ; [L494] retValue_acc = methaneLevelCritical [L495] return (retValue_acc); [L417] tmp = isMethaneLevelCritical() [L419] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:14:20,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...