./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product18.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_spec5_product18.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 94764d939360bf9dcef600c899d646b4aba09178 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:33:25,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:33:25,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:33:25,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:33:25,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:33:25,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:33:25,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:33:25,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:33:25,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:33:25,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:33:25,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:33:25,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:33:25,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:33:25,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:33:25,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:33:25,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:33:25,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:33:25,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:33:25,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:33:25,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:33:25,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:33:25,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:33:25,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:33:25,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:33:25,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:33:25,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:33:25,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:33:25,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:33:25,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:33:25,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:33:25,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:33:25,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:33:25,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:33:25,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:33:25,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:33:25,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:33:25,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:33:25,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:33:25,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:33:25,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:33:25,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:33:25,287 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:33:25,335 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:33:25,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:33:25,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:33:25,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:33:25,339 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:33:25,339 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:33:25,339 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:33:25,339 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:33:25,340 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:33:25,340 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:33:25,341 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:33:25,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:33:25,341 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:33:25,342 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:33:25,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:33:25,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:33:25,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:33:25,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:33:25,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:33:25,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:33:25,343 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:33:25,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:33:25,344 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:33:25,344 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:33:25,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:33:25,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:33:25,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:33:25,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:33:25,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:33:25,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:33:25,347 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:33:25,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94764d939360bf9dcef600c899d646b4aba09178 [2021-07-06 20:33:25,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:33:25,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:33:25,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:33:25,683 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:33:25,684 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:33:25,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c [2021-07-06 20:33:25,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b0fe291c/52df3e6b80d44380b8d45aa1c191bbbb/FLAG8327c2e68 [2021-07-06 20:33:26,210 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:33:26,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c [2021-07-06 20:33:26,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b0fe291c/52df3e6b80d44380b8d45aa1c191bbbb/FLAG8327c2e68 [2021-07-06 20:33:26,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b0fe291c/52df3e6b80d44380b8d45aa1c191bbbb [2021-07-06 20:33:26,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:33:26,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:33:26,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:33:26,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:33:26,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:33:26,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:33:26" (1/1) ... [2021-07-06 20:33:26,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb57d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26, skipping insertion in model container [2021-07-06 20:33:26,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:33:26" (1/1) ... [2021-07-06 20:33:26,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:33:26,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:33:26,759 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_spec5_product18.cil.c[4567,4580] [2021-07-06 20:33:26,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:33:26,850 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:33:26,901 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_spec5_product18.cil.c[4567,4580] [2021-07-06 20:33:26,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:33:26,998 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:33:26,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26 WrapperNode [2021-07-06 20:33:26,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:33:27,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:33:27,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:33:27,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:33:27,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26" (1/1) ... [2021-07-06 20:33:27,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26" (1/1) ... [2021-07-06 20:33:27,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:33:27,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:33:27,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:33:27,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:33:27,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26" (1/1) ... [2021-07-06 20:33:27,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26" (1/1) ... [2021-07-06 20:33:27,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26" (1/1) ... [2021-07-06 20:33:27,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26" (1/1) ... [2021-07-06 20:33:27,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26" (1/1) ... [2021-07-06 20:33:27,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26" (1/1) ... [2021-07-06 20:33:27,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26" (1/1) ... [2021-07-06 20:33:27,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:33:27,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:33:27,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:33:27,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:33:27,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26" (1/1) ... [2021-07-06 20:33:27,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:33:27,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:33:27,132 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 20:33:27,134 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 20:33:27,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:33:27,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:33:27,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:33:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:33:27,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:33:27,810 INFO L299 CfgBuilder]: Removed 112 assume(true) statements. [2021-07-06 20:33:27,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:33:27 BoogieIcfgContainer [2021-07-06 20:33:27,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:33:27,814 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:33:27,814 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:33:27,817 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:33:27,817 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:33:27,818 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:33:26" (1/3) ... [2021-07-06 20:33:27,819 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32d5688d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:33:27, skipping insertion in model container [2021-07-06 20:33:27,819 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:33:27,819 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:33:26" (2/3) ... [2021-07-06 20:33:27,820 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32d5688d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:33:27, skipping insertion in model container [2021-07-06 20:33:27,820 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:33:27,820 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:33:27" (3/3) ... [2021-07-06 20:33:27,821 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product18.cil.c [2021-07-06 20:33:27,865 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:33:27,866 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:33:27,866 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:33:27,866 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:33:27,866 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:33:27,866 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:33:27,866 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:33:27,866 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:33:27,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:33:27,907 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-07-06 20:33:27,908 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:33:27,908 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:33:27,912 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:33:27,913 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:33:27,913 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:33:27,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:33:27,917 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-07-06 20:33:27,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:33:27,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:33:27,918 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:33:27,918 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:33:27,921 INFO L791 eck$LassoCheckResult]: Stem: 42#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 24#L-1true havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 15#L321true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 25#L329true main_#t~ret31 := valid_product_#res;main_~tmp~3 := main_#t~ret31;havoc main_#t~ret31; 51#L418true assume 0 != main_~tmp~3; 56#L393true ~switchedOnBeforeTS~0 := 0; 38#L439true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, 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; 20#L460-1true [2021-07-06 20:33:27,922 INFO L793 eck$LassoCheckResult]: Loop: 20#L460-1true assume !false; 4#L58true assume test_~splverifierCounter~0 < 4; 35#L59true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 64#L67true assume !(0 != test_~tmp~0); 62#L67-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 45#L77true assume !(0 != test_~tmp___0~0); 43#L77-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 28#L87true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 18#L95-2true havoc __utac_acc__Specification5_spec__2_#t~ret32;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 9#L219true __utac_acc__Specification5_spec__2_#t~ret32 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32;havoc __utac_acc__Specification5_spec__2_#t~ret32; 16#L449true assume !(0 != ~pumpRunning~0); 69#L134true assume !(0 != ~systemActive~0); 80#L141true havoc __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 63#L923true __utac_acc__Specification5_spec__3_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 13#L460true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 20#L460-1true [2021-07-06 20:33:27,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:33:27,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-07-06 20:33:27,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:33:27,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290228234] [2021-07-06 20:33:27,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:33:27,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:33:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:33:28,175 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:33:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:33:28,263 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:33:28,308 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:33:28,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:33:28,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1011284045, now seen corresponding path program 1 times [2021-07-06 20:33:28,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:33:28,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285177957] [2021-07-06 20:33:28,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:33:28,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:33:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:33:28,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:33:28,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:33:28,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:33:28,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:33:28,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:33:28,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:33:28,382 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 20:33:28,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:33:28,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285177957] [2021-07-06 20:33:28,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285177957] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:33:28,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:33:28,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:33:28,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300112633] [2021-07-06 20:33:28,391 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:33:28,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:33:28,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:33:28,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:33:28,412 INFO L87 Difference]: Start difference. First operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 20:33:28,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:33:28,460 INFO L93 Difference]: Finished difference Result 81 states and 110 transitions. [2021-07-06 20:33:28,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:33:28,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 110 transitions. [2021-07-06 20:33:28,474 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-07-06 20:33:28,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 102 transitions. [2021-07-06 20:33:28,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2021-07-06 20:33:28,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2021-07-06 20:33:28,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 102 transitions. [2021-07-06 20:33:28,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:33:28,483 INFO L681 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-07-06 20:33:28,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 102 transitions. [2021-07-06 20:33:28,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-07-06 20:33:28,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 73 states have internal predecessors, (102), 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 20:33:28,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2021-07-06 20:33:28,516 INFO L704 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-07-06 20:33:28,517 INFO L587 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-07-06 20:33:28,517 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:33:28,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2021-07-06 20:33:28,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-07-06 20:33:28,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:33:28,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:33:28,524 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:33:28,524 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:33:28,524 INFO L791 eck$LassoCheckResult]: Stem: 227#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 213#L-1 havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 200#L321 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 201#L329 main_#t~ret31 := valid_product_#res;main_~tmp~3 := main_#t~ret31;havoc main_#t~ret31; 214#L418 assume 0 != main_~tmp~3; 235#L393 ~switchedOnBeforeTS~0 := 0; 225#L439 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, 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; 194#L460-1 [2021-07-06 20:33:28,524 INFO L793 eck$LassoCheckResult]: Loop: 194#L460-1 assume !false; 175#L58 assume test_~splverifierCounter~0 < 4; 176#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 223#L67 assume !(0 != test_~tmp~0); 192#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 228#L77 assume !(0 != test_~tmp___0~0); 222#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 217#L87 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 204#L95-2 havoc __utac_acc__Specification5_spec__2_#t~ret32;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 185#L219 __utac_acc__Specification5_spec__2_#t~ret32 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32;havoc __utac_acc__Specification5_spec__2_#t~ret32; 186#L449 assume !(0 != ~pumpRunning~0); 202#L134 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 233#L166 assume !(0 != ~pumpRunning~0); 234#L141 havoc __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 242#L923 __utac_acc__Specification5_spec__3_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 193#L460 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 194#L460-1 [2021-07-06 20:33:28,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:33:28,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-07-06 20:33:28,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:33:28,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17519008] [2021-07-06 20:33:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:33:28,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:33:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:33:28,587 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:33:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:33:28,634 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:33:28,660 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:33:28,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:33:28,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1258041219, now seen corresponding path program 1 times [2021-07-06 20:33:28,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:33:28,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828443580] [2021-07-06 20:33:28,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:33:28,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:33:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:33:28,672 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:33:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:33:28,678 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:33:28,681 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:33:28,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:33:28,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1083280585, now seen corresponding path program 1 times [2021-07-06 20:33:28,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:33:28,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219035138] [2021-07-06 20:33:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:33:28,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:33:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:33:28,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:33:28,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:33:28,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:33:28,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:33:28,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:33:28,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:33:28,766 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 20:33:28,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:33:28,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219035138] [2021-07-06 20:33:28,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219035138] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:33:28,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:33:28,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:33:28,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318397097] [2021-07-06 20:33:28,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:33:28,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-07-06 20:33:28,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:33:28,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-06 20:33:28,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-06 20:33:28,890 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. cyclomatic complexity: 30 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 20:33:29,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:33:29,072 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2021-07-06 20:33:29,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-06 20:33:29,073 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 288 transitions. [2021-07-06 20:33:29,076 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2021-07-06 20:33:29,077 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 288 transitions. [2021-07-06 20:33:29,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2021-07-06 20:33:29,078 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2021-07-06 20:33:29,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 288 transitions. [2021-07-06 20:33:29,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:33:29,079 INFO L681 BuchiCegarLoop]: Abstraction has 210 states and 288 transitions. [2021-07-06 20:33:29,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 288 transitions. [2021-07-06 20:33:29,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 141. [2021-07-06 20:33:29,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.3475177304964538) internal successors, (190), 140 states have internal predecessors, (190), 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 20:33:29,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 190 transitions. [2021-07-06 20:33:29,088 INFO L704 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2021-07-06 20:33:29,088 INFO L587 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2021-07-06 20:33:29,089 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-07-06 20:33:29,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 190 transitions. [2021-07-06 20:33:29,090 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2021-07-06 20:33:29,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:33:29,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:33:29,091 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:33:29,091 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:33:29,091 INFO L791 eck$LassoCheckResult]: Stem: 531#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 515#L-1 havoc main_#res;havoc main_#t~ret31, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 498#L321 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 499#L329 main_#t~ret31 := valid_product_#res;main_~tmp~3 := main_#t~ret31;havoc main_#t~ret31; 516#L418 assume 0 != main_~tmp~3; 540#L393 ~switchedOnBeforeTS~0 := 0; 528#L439 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, 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; 529#L460-1 [2021-07-06 20:33:29,091 INFO L793 eck$LassoCheckResult]: Loop: 529#L460-1 assume !false; 473#L58 assume test_~splverifierCounter~0 < 4; 474#L59 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 526#L67 assume !(0 != test_~tmp~0); 549#L67-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 532#L77 assume !(0 != test_~tmp___0~0); 525#L77-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 518#L87 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 504#L95-2 havoc __utac_acc__Specification5_spec__2_#t~ret32;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 485#L219 __utac_acc__Specification5_spec__2_#t~ret32 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32;havoc __utac_acc__Specification5_spec__2_#t~ret32; 486#L449 assume !(0 != ~pumpRunning~0); 500#L134 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 556#L166 assume !(0 != ~pumpRunning~0); 563#L141 havoc __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 564#L923 __utac_acc__Specification5_spec__3_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 493#L460 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 494#L219-1 __utac_acc__Specification5_spec__3_#t~ret34 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 597#L464 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 529#L460-1 [2021-07-06 20:33:29,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:33:29,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-07-06 20:33:29,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:33:29,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098178504] [2021-07-06 20:33:29,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:33:29,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:33:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:33:29,117 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:33:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:33:29,141 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:33:29,149 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:33:29,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:33:29,150 INFO L82 PathProgramCache]: Analyzing trace with hash 2091787166, now seen corresponding path program 1 times [2021-07-06 20:33:29,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:33:29,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336769622] [2021-07-06 20:33:29,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:33:29,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:33:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:33:29,154 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:33:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:33:29,156 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:33:29,170 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:33:29,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:33:29,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1650542436, now seen corresponding path program 1 times [2021-07-06 20:33:29,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:33:29,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513590773] [2021-07-06 20:33:29,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:33:29,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:33:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:33:29,197 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:33:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:33:29,224 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:33:29,248 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:33:29,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:33:29,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-06 20:34:11,357 WARN L205 SmtUtils]: Spent 41.94 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-07-06 20:34:11,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:34:11,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2130 [2021-07-06 20:34:33,323 WARN L205 SmtUtils]: Spent 21.90 s on a formula simplification that was a NOOP. DAG size: 435 [2021-07-06 20:34:33,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:34:33 BoogieIcfgContainer [2021-07-06 20:34:33,426 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:34:33,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:34:33,426 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:34:33,427 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:34:33,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:33:27" (3/4) ... [2021-07-06 20:34:33,429 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:34:33,474 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:34:33,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:34:33,475 INFO L168 Benchmark]: Toolchain (without parser) took 66931.93 ms. Allocated memory was 56.6 MB in the beginning and 100.7 MB in the end (delta: 44.0 MB). Free memory was 34.5 MB in the beginning and 68.1 MB in the end (delta: -33.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2021-07-06 20:34:33,475 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 37.9 MB in the beginning and 37.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:34:33,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 453.65 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.2 MB in the beginning and 45.3 MB in the end (delta: -11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:34:33,475 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.24 ms. Allocated memory is still 69.2 MB. Free memory was 45.3 MB in the beginning and 42.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:34:33,476 INFO L168 Benchmark]: Boogie Preprocessor took 50.70 ms. Allocated memory is still 69.2 MB. Free memory was 42.2 MB in the beginning and 40.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:34:33,476 INFO L168 Benchmark]: RCFGBuilder took 707.57 ms. Allocated memory is still 69.2 MB. Free memory was 39.9 MB in the beginning and 41.3 MB in the end (delta: -1.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:34:33,476 INFO L168 Benchmark]: BuchiAutomizer took 65611.77 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 40.9 MB in the beginning and 70.2 MB in the end (delta: -29.3 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:34:33,476 INFO L168 Benchmark]: Witness Printer took 47.91 ms. Allocated memory is still 100.7 MB. Free memory was 70.2 MB in the beginning and 68.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:34:33,478 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 56.6 MB. Free memory was 37.9 MB in the beginning and 37.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 453.65 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.2 MB in the beginning and 45.3 MB in the end (delta: -11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.24 ms. Allocated memory is still 69.2 MB. Free memory was 45.3 MB in the beginning and 42.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.70 ms. Allocated memory is still 69.2 MB. Free memory was 42.2 MB in the beginning and 40.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 707.57 ms. Allocated memory is still 69.2 MB. Free memory was 39.9 MB in the beginning and 41.3 MB in the end (delta: -1.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 65611.77 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 40.9 MB in the beginning and 70.2 MB in the end (delta: -29.3 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. * Witness Printer took 47.91 ms. Allocated memory is still 100.7 MB. Free memory was 70.2 MB in the beginning and 68.1 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 5 locations. The remainder module has 141 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 65.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 65.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 30.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 141 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 263 SDtfs, 426 SDslu, 298 SDs, 0 SdLazy, 85 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 129.2ms 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: 57]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=29845} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=61640, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60d5155a=70, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b810e19=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f217537=0, NULL=29845, NULL=61633, retValue_acc=0, NULL=61626, NULL=61629, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a46f9f2=0, NULL=29847, NULL=61637, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12440ccd=0, NULL=0, tmp=1, NULL=0, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e6bd665=0, NULL=0, NULL=0, NULL=61647, NULL=61643, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, NULL=61634, \result=0, NULL=61642, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=61638, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=61639, \result=1, NULL=61651, head=0, pumpRunning=0, tmp___0=0, NULL=61631, \result=0, tmp=1, NULL=61635, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@650a88a8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10259d17=0, NULL=0, retValue_acc=1, NULL=61636, NULL=0, NULL=61645, NULL=0, NULL=0, NULL=61632, NULL=29846, NULL=0, NULL=61650, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5677168f=0, tmp___2=70, NULL=0, NULL=61644, splverifierCounter=0, NULL=0, NULL=61630, NULL=61649, tmp=0, head=0, retValue_acc=0, NULL=0, NULL=0, NULL=61646, NULL=0, NULL=0, NULL=61648, NULL=0, NULL=61627, NULL=61641, NULL=61628} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L433] int switchedOnBeforeTS ; [L651] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L848] int waterLevel = 1; [L849] int methaneLevelCritical = 0; [L409] int retValue_acc ; [L410] int tmp ; [L325] int retValue_acc ; [L328] retValue_acc = 1 [L329] return (retValue_acc); [L416] tmp = valid_product() [L418] COND TRUE \read(tmp) [L438] switchedOnBeforeTS = 0 [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 Loop: [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L282] systemActive = 1 [L215] int retValue_acc ; [L218] retValue_acc = pumpRunning [L219] return (retValue_acc); [L447] switchedOnBeforeTS = isPumpRunning() [L134] COND FALSE !(\read(pumpRunning)) [L141] COND TRUE \read(systemActive) [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L453] int tmp ; [L454] int tmp___0 ; [L919] int retValue_acc ; [L922] retValue_acc = waterLevel [L923] return (retValue_acc); [L458] tmp = getWaterLevel() [L460] COND TRUE tmp != 2 [L215] int retValue_acc ; [L218] retValue_acc = pumpRunning [L219] return (retValue_acc); [L462] tmp___0 = isPumpRunning() [L464] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:34:33,528 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...