./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87504a1abfe2d10f353d562b38ba2c6a9363e65c .................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:31:06,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:31:06,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:31:06,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:31:06,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:31:06,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:31:06,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:31:06,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:31:06,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:31:06,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:31:06,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:31:06,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:31:06,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:31:06,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:31:06,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:31:06,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:31:06,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:31:06,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:31:06,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:31:06,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:31:06,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:31:06,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:31:06,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:31:06,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:31:06,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:31:06,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:31:06,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:31:06,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:31:06,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:31:06,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:31:06,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:31:06,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:31:06,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:31:06,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:31:06,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:31:06,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:31:06,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:31:06,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:31:06,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:31:06,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:31:06,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:31:06,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 11:31:06,426 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:31:06,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:31:06,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:31:06,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:31:06,427 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:31:06,428 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 11:31:06,428 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 11:31:06,428 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 11:31:06,428 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 11:31:06,428 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 11:31:06,429 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 11:31:06,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:31:06,429 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:31:06,429 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 11:31:06,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:31:06,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:31:06,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:31:06,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 11:31:06,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 11:31:06,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 11:31:06,431 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:31:06,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:31:06,431 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 11:31:06,431 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:31:06,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 11:31:06,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:31:06,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:31:06,432 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 11:31:06,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:31:06,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:31:06,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:31:06,432 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 11:31:06,433 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 11:31:06,433 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87504a1abfe2d10f353d562b38ba2c6a9363e65c [2019-12-07 11:31:06,549 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:31:06,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:31:06,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:31:06,563 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:31:06,563 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:31:06,564 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2019-12-07 11:31:06,606 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer/data/305a8f137/26c1e1b5293745c39a608a5be24ced43/FLAG609e9b653 [2019-12-07 11:31:07,040 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:31:07,041 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2019-12-07 11:31:07,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer/data/305a8f137/26c1e1b5293745c39a608a5be24ced43/FLAG609e9b653 [2019-12-07 11:31:07,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer/data/305a8f137/26c1e1b5293745c39a608a5be24ced43 [2019-12-07 11:31:07,060 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:31:07,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:31:07,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:31:07,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:31:07,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:31:07,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:31:07" (1/1) ... [2019-12-07 11:31:07,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec2c2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07, skipping insertion in model container [2019-12-07 11:31:07,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:31:07" (1/1) ... [2019-12-07 11:31:07,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:31:07,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:31:07,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:31:07,311 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:31:07,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:31:07,377 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:31:07,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07 WrapperNode [2019-12-07 11:31:07,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:31:07,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:31:07,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:31:07,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:31:07,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07" (1/1) ... [2019-12-07 11:31:07,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07" (1/1) ... [2019-12-07 11:31:07,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:31:07,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:31:07,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:31:07,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:31:07,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07" (1/1) ... [2019-12-07 11:31:07,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07" (1/1) ... [2019-12-07 11:31:07,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07" (1/1) ... [2019-12-07 11:31:07,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07" (1/1) ... [2019-12-07 11:31:07,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07" (1/1) ... [2019-12-07 11:31:07,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07" (1/1) ... [2019-12-07 11:31:07,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07" (1/1) ... [2019-12-07 11:31:07,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:31:07,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:31:07,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:31:07,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:31:07,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:31:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:31:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 11:31:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:31:07,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:31:07,897 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:31:07,897 INFO L287 CfgBuilder]: Removed 160 assume(true) statements. [2019-12-07 11:31:07,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:31:07 BoogieIcfgContainer [2019-12-07 11:31:07,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:31:07,898 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 11:31:07,898 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 11:31:07,900 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 11:31:07,901 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:31:07,901 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 11:31:07" (1/3) ... [2019-12-07 11:31:07,902 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ace5fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 11:31:07, skipping insertion in model container [2019-12-07 11:31:07,902 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:31:07,902 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:31:07" (2/3) ... [2019-12-07 11:31:07,902 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ace5fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 11:31:07, skipping insertion in model container [2019-12-07 11:31:07,902 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:31:07,902 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:31:07" (3/3) ... [2019-12-07 11:31:07,903 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product23.cil.c [2019-12-07 11:31:07,932 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 11:31:07,932 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 11:31:07,933 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 11:31:07,933 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:31:07,933 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:31:07,933 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 11:31:07,933 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:31:07,933 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 11:31:07,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states. [2019-12-07 11:31:07,964 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-12-07 11:31:07,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:31:07,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:31:07,969 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 11:31:07,970 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:31:07,970 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 11:31:07,970 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states. [2019-12-07 11:31:07,974 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-12-07 11:31:07,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:31:07,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:31:07,975 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 11:31:07,975 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:31:07,979 INFO L794 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.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; 9#L-1true havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 99#L536true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 8#L544true main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 63#L925true assume 0 != main_~tmp~8; 105#L902true havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 100#L825-1true [2019-12-07 11:31:07,979 INFO L796 eck$LassoCheckResult]: Loop: 100#L825-1true assume !false; 12#L563true assume test_~splverifierCounter~0 < 4; 68#L564true test_~tmp~3 := test_#t~nondet46;havoc test_#t~nondet46; 93#L572true assume !(0 != test_~tmp~3); 95#L572-1true test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 33#L582true assume !(0 != test_~tmp___0~0); 34#L582-1true test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 67#L592true assume 0 != test_~tmp___2~0; 60#L598-1true assume !(0 != ~pumpRunning~0); 56#L631true assume !(0 != ~systemActive~0); 90#L638true havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 16#L497true __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; 98#L825true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 100#L825-1true [2019-12-07 11:31:07,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:31:07,984 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 11:31:07,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:31:07,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788736867] [2019-12-07 11:31:07,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:31:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:31:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:31:08,185 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:31:08,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:31:08,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1671709749, now seen corresponding path program 1 times [2019-12-07 11:31:08,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:31:08,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30986168] [2019-12-07 11:31:08,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:31:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:31:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:31:08,197 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:31:08,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:31:08,198 INFO L82 PathProgramCache]: Analyzing trace with hash 42569189, now seen corresponding path program 1 times [2019-12-07 11:31:08,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:31:08,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754923253] [2019-12-07 11:31:08,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:31:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:31:08,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:31:08,275 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754923253] [2019-12-07 11:31:08,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:31:08,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 11:31:08,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581887110] [2019-12-07 11:31:08,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:31:08,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:31:08,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:31:08,339 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 6 states. [2019-12-07 11:31:08,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:31:08,463 INFO L93 Difference]: Finished difference Result 252 states and 354 transitions. [2019-12-07 11:31:08,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:31:08,464 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 354 transitions. [2019-12-07 11:31:08,472 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 161 [2019-12-07 11:31:08,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 231 states and 333 transitions. [2019-12-07 11:31:08,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 231 [2019-12-07 11:31:08,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 231 [2019-12-07 11:31:08,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 231 states and 333 transitions. [2019-12-07 11:31:08,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 11:31:08,483 INFO L688 BuchiCegarLoop]: Abstraction has 231 states and 333 transitions. [2019-12-07 11:31:08,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states and 333 transitions. [2019-12-07 11:31:08,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 138. [2019-12-07 11:31:08,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-12-07 11:31:08,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 198 transitions. [2019-12-07 11:31:08,509 INFO L711 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2019-12-07 11:31:08,509 INFO L591 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2019-12-07 11:31:08,509 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 11:31:08,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states and 198 transitions. [2019-12-07 11:31:08,510 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2019-12-07 11:31:08,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:31:08,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:31:08,511 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 11:31:08,511 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:31:08,511 INFO L794 eck$LassoCheckResult]: Stem: 460#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.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; 386#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 387#L536 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 384#L544 main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 385#L925 assume 0 != main_~tmp~8; 457#L902 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 455#L825-1 [2019-12-07 11:31:08,511 INFO L796 eck$LassoCheckResult]: Loop: 455#L825-1 assume !false; 391#L563 assume test_~splverifierCounter~0 < 4; 392#L564 test_~tmp~3 := test_#t~nondet46;havoc test_#t~nondet46; 458#L572 assume !(0 != test_~tmp~3); 466#L572-1 test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 426#L582 assume !(0 != test_~tmp___0~0); 427#L582-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 429#L592 assume 0 != test_~tmp___2~0; 454#L598-1 assume !(0 != ~pumpRunning~0); 420#L631 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 441#L689 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret50, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 443#L663-1 assume !(0 != ~pumpRunning~0); 446#L638 havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 399#L497 __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; 400#L825 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 455#L825-1 [2019-12-07 11:31:08,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:31:08,512 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 11:31:08,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:31:08,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662497840] [2019-12-07 11:31:08,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:31:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:31:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:31:08,566 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:31:08,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:31:08,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1950294333, now seen corresponding path program 1 times [2019-12-07 11:31:08,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:31:08,567 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120631373] [2019-12-07 11:31:08,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:31:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:31:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:31:08,574 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:31:08,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:31:08,574 INFO L82 PathProgramCache]: Analyzing trace with hash 104912087, now seen corresponding path program 1 times [2019-12-07 11:31:08,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:31:08,575 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506237575] [2019-12-07 11:31:08,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:31:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:31:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:31:08,629 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:31:32,065 WARN L192 SmtUtils]: Spent 23.39 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 11:31:44,765 WARN L192 SmtUtils]: Spent 12.70 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 11:31:44,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 11:31:44 BoogieIcfgContainer [2019-12-07 11:31:44,820 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 11:31:44,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:31:44,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:31:44,821 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:31:44,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:31:07" (3/4) ... [2019-12-07 11:31:44,823 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 11:31:44,858 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e3196ec1-605b-4516-82b0-a7cd82c34601/bin/uautomizer/witness.graphml [2019-12-07 11:31:44,859 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:31:44,860 INFO L168 Benchmark]: Toolchain (without parser) took 37799.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -113.5 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:31:44,860 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:31:44,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -152.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:31:44,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:31:44,861 INFO L168 Benchmark]: Boogie Preprocessor took 28.93 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:31:44,862 INFO L168 Benchmark]: RCFGBuilder took 447.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.6 MB). Peak memory consumption was 67.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:31:44,862 INFO L168 Benchmark]: BuchiAutomizer took 36921.95 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 48.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -42.2 MB). Peak memory consumption was 232.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:31:44,862 INFO L168 Benchmark]: Witness Printer took 38.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:31:44,864 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 316.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -152.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.93 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 447.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.6 MB). Peak memory consumption was 67.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36921.95 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 48.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -42.2 MB). Peak memory consumption was 232.9 MB. Max. memory is 11.5 GB. * Witness Printer took 38.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 138 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 36.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 93 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 138 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 143 SDtfs, 550 SDslu, 659 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 562]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4236} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f090fde=0, NULL=0, NULL=0, NULL=0, NULL=4236, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64e5672=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@534870cb=63, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@666af31e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@346d66f1=0, NULL=0, NULL=4260, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ec7fd3b=0, NULL=4247, NULL=4251, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6246c26a=0, tmp=0, NULL=0, NULL=0, tmp=0, NULL=4257, tmp___1=0, NULL=4254, NULL=4242, NULL=4246, NULL=4241, NULL=4244, cleanupTimeShifts=4, NULL=4240, NULL=4255, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=4237, NULL=4259, NULL=0, tmp___0=0, NULL=4243, NULL=0, NULL=0, retValue_acc=0, \result=1, NULL=4249, head=0, pumpRunning=0, \result=0, NULL=4239, NULL=0, NULL=0, NULL=4238, tmp=1, NULL=0, retValue_acc=1, NULL=4250, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c6e8b0b=0, tmp=1, tmp___2=63, retValue_acc=1, NULL=4256, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4925195e=0, head=0, NULL=0, tmp=0, NULL=4245, NULL=4258, NULL=0, NULL=4248, NULL=0, NULL=0, NULL=4253, NULL=4252, NULL=4261} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L422] int waterLevel = 1; [L423] int methaneLevelCritical = 0; [L623] int pumpRunning = 0; [L624] int systemActive = 1; [L843] int cleanupTimeShifts = 4; [L916] int retValue_acc ; [L917] int tmp ; [L540] int retValue_acc ; [L543] retValue_acc = 1 [L544] return (retValue_acc); [L923] tmp = valid_product() [L925] COND TRUE \read(tmp) [L553] int splverifierCounter ; [L554] int tmp ; [L555] int tmp___0 ; [L556] int tmp___1 ; [L557] int tmp___2 ; [L560] splverifierCounter = 0 Loop: [L562] COND TRUE 1 [L564] COND TRUE splverifierCounter < 4 [L570] tmp = __VERIFIER_nondet_int() [L572] COND FALSE !(\read(tmp)) [L580] tmp___0 = __VERIFIER_nondet_int() [L582] COND FALSE !(\read(tmp___0)) [L590] tmp___2 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___2) [L631] COND FALSE !(\read(pumpRunning)) [L638] COND TRUE \read(systemActive) [L686] int tmp ; [L689] COND FALSE !(\read(pumpRunning)) [L660] int tmp ; [L663] COND FALSE !(\read(pumpRunning)) [L818] int tmp ; [L819] int tmp___0 ; [L493] int retValue_acc ; [L496] retValue_acc = waterLevel [L497] return (retValue_acc); [L823] tmp = getWaterLevel() [L825] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...