./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product30.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/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 57ef4714e94677ff3ffda9fa58ccb58875f35cc3 ............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:59:35,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:59:35,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:59:35,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:59:35,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:59:35,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:59:35,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:59:35,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:59:35,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:59:35,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:59:35,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:59:35,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:59:35,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:59:35,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:59:35,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:59:35,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:59:35,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:59:35,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:59:35,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:59:35,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:59:35,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:59:35,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:59:35,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:59:35,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:59:35,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:59:35,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:59:35,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:59:35,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:59:35,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:59:35,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:59:35,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:59:35,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:59:35,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:59:35,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:59:35,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:59:35,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:59:35,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:59:35,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:59:35,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:59:35,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:59:35,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:59:35,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:59:35,847 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:59:35,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:59:35,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:59:35,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:59:35,851 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:59:35,851 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:59:35,852 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:59:35,852 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:59:35,853 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:59:35,853 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:59:35,854 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:59:35,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:59:35,855 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:59:35,855 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:59:35,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:59:35,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:59:35,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:59:35,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:59:35,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:59:35,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:59:35,857 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:59:35,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:59:35,857 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:59:35,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:59:35,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:59:35,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:59:35,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:59:35,859 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:59:35,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:59:35,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:59:35,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:59:35,860 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:59:35,862 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:59:35,862 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57ef4714e94677ff3ffda9fa58ccb58875f35cc3 [2020-11-29 18:59:36,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:59:36,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:59:36,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:59:36,264 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:59:36,265 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:59:36,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product30.cil.c [2020-11-29 18:59:36,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/data/148095865/daa4c4bf7e21435daf687829e919e99c/FLAG0de6276dc [2020-11-29 18:59:37,157 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:59:37,158 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/sv-benchmarks/c/product-lines/minepump_spec2_product30.cil.c [2020-11-29 18:59:37,173 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/data/148095865/daa4c4bf7e21435daf687829e919e99c/FLAG0de6276dc [2020-11-29 18:59:37,430 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/data/148095865/daa4c4bf7e21435daf687829e919e99c [2020-11-29 18:59:37,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:59:37,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:59:37,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:59:37,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:59:37,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:59:37,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:59:37" (1/1) ... [2020-11-29 18:59:37,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e74f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:37, skipping insertion in model container [2020-11-29 18:59:37,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:59:37" (1/1) ... [2020-11-29 18:59:37,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:59:37,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:59:37,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:59:37,893 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:59:37,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:59:38,037 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:59:38,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:38 WrapperNode [2020-11-29 18:59:38,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:59:38,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:59:38,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:59:38,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:59:38,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:38" (1/1) ... [2020-11-29 18:59:38,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:38" (1/1) ... [2020-11-29 18:59:38,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:59:38,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:59:38,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:59:38,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:59:38,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:38" (1/1) ... [2020-11-29 18:59:38,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:38" (1/1) ... [2020-11-29 18:59:38,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:38" (1/1) ... [2020-11-29 18:59:38,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:38" (1/1) ... [2020-11-29 18:59:38,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:38" (1/1) ... [2020-11-29 18:59:38,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:38" (1/1) ... [2020-11-29 18:59:38,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:38" (1/1) ... [2020-11-29 18:59:38,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:59:38,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:59:38,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:59:38,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:59:38,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:59:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:59:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:59:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:59:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:59:39,580 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:59:39,581 INFO L298 CfgBuilder]: Removed 166 assume(true) statements. [2020-11-29 18:59:39,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:59:39 BoogieIcfgContainer [2020-11-29 18:59:39,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:59:39,586 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:59:39,587 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:59:39,591 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:59:39,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:59:39,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:59:37" (1/3) ... [2020-11-29 18:59:39,594 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77677852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:59:39, skipping insertion in model container [2020-11-29 18:59:39,594 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:59:39,594 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:59:38" (2/3) ... [2020-11-29 18:59:39,595 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77677852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:59:39, skipping insertion in model container [2020-11-29 18:59:39,595 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:59:39,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:59:39" (3/3) ... [2020-11-29 18:59:39,598 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product30.cil.c [2020-11-29 18:59:39,678 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:59:39,678 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:59:39,678 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:59:39,678 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:59:39,679 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:59:39,679 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:59:39,679 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:59:39,679 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:59:39,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2020-11-29 18:59:39,731 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-29 18:59:39,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:59:39,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:59:39,742 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:59:39,742 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:59:39,742 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:59:39,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2020-11-29 18:59:39,751 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-29 18:59:39,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:59:39,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:59:39,752 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:59:39,753 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:59:39,759 INFO L794 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 33#L433true 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; 38#L441true main_#t~ret43 := valid_product_#res;main_~tmp~3 := main_#t~ret43;havoc main_#t~ret43; 25#L535true assume 0 != main_~tmp~3; 59#L509true ~methAndRunningLastTime~0 := 0; 67#L933true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 69#L944-1true [2020-11-29 18:59:39,760 INFO L796 eck$LassoCheckResult]: Loop: 69#L944-1true assume !false; 70#L655true assume test_~splverifierCounter~0 < 4; 35#L656true test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 39#L664true assume !(0 != test_~tmp~4); 40#L664-1true test_~tmp___0~0 := test_#t~nondet55;havoc test_#t~nondet55; 79#L674true assume !(0 != test_~tmp___0~0); 81#L674-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 12#L684true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 20#L692-2true assume !(0 != ~pumpRunning~0); 32#L722true assume !(0 != ~systemActive~0); 73#L729true havoc __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 56#L597-1true __utac_acc__Specification2_spec__2_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret79;havoc __utac_acc__Specification2_spec__2_#t~ret79; 65#L944true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 69#L944-1true [2020-11-29 18:59:39,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:59:39,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 18:59:39,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:59:39,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353755197] [2020-11-29 18:59:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:59:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:59:40,020 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:59:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:59:40,147 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:59:40,208 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:59:40,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:59:40,218 INFO L82 PathProgramCache]: Analyzing trace with hash 4938829, now seen corresponding path program 1 times [2020-11-29 18:59:40,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:59:40,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316734062] [2020-11-29 18:59:40,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:59:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:59:40,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:59:40,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316734062] [2020-11-29 18:59:40,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:59:40,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:59:40,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144095058] [2020-11-29 18:59:40,333 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:59:40,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:59:40,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:59:40,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:59:40,357 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 3 states. [2020-11-29 18:59:40,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:59:40,443 INFO L93 Difference]: Finished difference Result 106 states and 150 transitions. [2020-11-29 18:59:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:59:40,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 150 transitions. [2020-11-29 18:59:40,452 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2020-11-29 18:59:40,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 99 states and 142 transitions. [2020-11-29 18:59:40,476 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2020-11-29 18:59:40,477 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 99 [2020-11-29 18:59:40,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 142 transitions. [2020-11-29 18:59:40,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:59:40,480 INFO L691 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2020-11-29 18:59:40,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 142 transitions. [2020-11-29 18:59:40,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-11-29 18:59:40,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-29 18:59:40,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 142 transitions. [2020-11-29 18:59:40,533 INFO L714 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2020-11-29 18:59:40,533 INFO L594 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2020-11-29 18:59:40,534 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:59:40,534 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 142 transitions. [2020-11-29 18:59:40,543 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2020-11-29 18:59:40,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:59:40,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:59:40,544 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:59:40,545 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:59:40,545 INFO L794 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 229#L-1 havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 230#L433 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; 277#L441 main_#t~ret43 := valid_product_#res;main_~tmp~3 := main_#t~ret43;havoc main_#t~ret43; 263#L535 assume 0 != main_~tmp~3; 264#L509 ~methAndRunningLastTime~0 := 0; 297#L933 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 247#L944-1 [2020-11-29 18:59:40,545 INFO L796 eck$LassoCheckResult]: Loop: 247#L944-1 assume !false; 306#L655 assume test_~splverifierCounter~0 < 4; 279#L656 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 280#L664 assume !(0 != test_~tmp~4); 282#L664-1 test_~tmp___0~0 := test_#t~nondet55;havoc test_#t~nondet55; 283#L674 assume !(0 != test_~tmp___0~0); 285#L674-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 239#L684 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 241#L692-2 assume !(0 != ~pumpRunning~0); 252#L722 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 265#L780 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret58, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 266#L754-1 assume !(0 != ~pumpRunning~0); 269#L729 havoc __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 294#L597-1 __utac_acc__Specification2_spec__2_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret79;havoc __utac_acc__Specification2_spec__2_#t~ret79; 295#L944 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 247#L944-1 [2020-11-29 18:59:40,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:59:40,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 18:59:40,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:59:40,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430097285] [2020-11-29 18:59:40,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:59:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:59:40,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:59:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:59:40,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:59:40,822 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:59:40,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:59:40,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1698133377, now seen corresponding path program 1 times [2020-11-29 18:59:40,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:59:40,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799212377] [2020-11-29 18:59:40,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:59:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:59:40,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:59:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:59:40,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:59:40,855 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:59:40,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:59:40,856 INFO L82 PathProgramCache]: Analyzing trace with hash 235891833, now seen corresponding path program 1 times [2020-11-29 18:59:40,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:59:40,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932921504] [2020-11-29 18:59:40,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:59:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:59:40,978 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:59:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:59:41,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:59:41,093 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:01:08,163 WARN L193 SmtUtils]: Spent 1.45 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:02:08,616 WARN L193 SmtUtils]: Spent 1.01 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:02:08,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:02:08 BoogieIcfgContainer [2020-11-29 19:02:08,823 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:02:08,823 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:02:08,823 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:02:08,824 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:02:08,824 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:59:39" (3/4) ... [2020-11-29 19:02:08,827 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:02:08,927 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3dfc3e10-76f6-499b-bfb2-b32b71d1cd91/bin/uautomizer/witness.graphml [2020-11-29 19:02:08,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:02:08,933 INFO L168 Benchmark]: Toolchain (without parser) took 151498.13 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 71.5 MB in the beginning and 42.2 MB in the end (delta: 29.3 MB). Peak memory consumption was 52.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:02:08,934 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 98.6 MB. Free memory was 57.7 MB in the beginning and 57.7 MB in the end (delta: 51.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:02:08,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.16 ms. Allocated memory is still 98.6 MB. Free memory was 71.3 MB in the beginning and 64.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:02:08,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.69 ms. Allocated memory is still 98.6 MB. Free memory was 64.2 MB in the beginning and 60.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:02:08,943 INFO L168 Benchmark]: Boogie Preprocessor took 96.57 ms. Allocated memory is still 98.6 MB. Free memory was 60.6 MB in the beginning and 58.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:02:08,943 INFO L168 Benchmark]: RCFGBuilder took 1334.13 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 58.2 MB in the beginning and 56.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:02:08,944 INFO L168 Benchmark]: BuchiAutomizer took 149236.63 ms. Allocated memory is still 121.6 MB. Free memory was 56.1 MB in the beginning and 44.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:02:08,945 INFO L168 Benchmark]: Witness Printer took 108.40 ms. Allocated memory is still 121.6 MB. Free memory was 44.3 MB in the beginning and 42.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:02:08,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 98.6 MB. Free memory was 57.7 MB in the beginning and 57.7 MB in the end (delta: 51.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 601.16 ms. Allocated memory is still 98.6 MB. Free memory was 71.3 MB in the beginning and 64.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.69 ms. Allocated memory is still 98.6 MB. Free memory was 64.2 MB in the beginning and 60.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.57 ms. Allocated memory is still 98.6 MB. Free memory was 60.6 MB in the beginning and 58.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1334.13 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 58.2 MB in the beginning and 56.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 149236.63 ms. Allocated memory is still 121.6 MB. Free memory was 56.1 MB in the beginning and 44.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. * Witness Printer took 108.40 ms. Allocated memory is still 121.6 MB. Free memory was 44.3 MB in the beginning and 42.2 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 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 3 locations. The remainder module has 99 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 149.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 148.8s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 99 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 147 SDtfs, 147 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 654]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22398} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=22398, NULL=22409, NULL=0, retValue_acc=0, NULL=22426, NULL=22420, NULL=22399, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ddd7350=0, methaneLevelCritical=0, NULL=22405, NULL=0, tmp=0, NULL=0, NULL=0, tmp___1=0, NULL=22422, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d88f237=0, NULL=0, NULL=0, NULL=22418, NULL=22411, NULL=22423, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@222b54fe=0, NULL=22424, NULL=22412, NULL=22416, NULL=22403, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=22408, NULL=0, NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@500dc396=0, NULL=22401, tmp___0=0, NULL=0, NULL=22400, \result=1, head=0, pumpRunning=0, NULL=22410, \result=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=22407, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@163be477=0, retValue_acc=1, NULL=22406, NULL=0, NULL=0, NULL=22402, NULL=0, NULL=22413, tmp___2=74, NULL=0, NULL=22421, NULL=22417, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=22419, NULL=22414, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3133f7b3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@486e9ef7=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5529ac5b=0, head=0, NULL=0, NULL=0, tmp=0, NULL=22415, NULL=0, NULL=0, NULL=22404, NULL=22425, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6112a88f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L554] int waterLevel = 1; [L555] int methaneLevelCritical = 0; [L714] int pumpRunning = 0; [L715] int systemActive = 1; [L927] int methAndRunningLastTime ; [L526] int retValue_acc ; [L527] int tmp ; [L437] int retValue_acc ; [L440] retValue_acc = 1 [L441] return (retValue_acc); [L533] tmp = valid_product() [L535] COND TRUE \read(tmp) [L932] methAndRunningLastTime = 0 [L645] int splverifierCounter ; [L646] int tmp ; [L647] int tmp___0 ; [L648] int tmp___1 ; [L649] int tmp___2 ; [L652] splverifierCounter = 0 Loop: [L654] COND TRUE 1 [L656] COND TRUE splverifierCounter < 4 [L662] tmp = __VERIFIER_nondet_int() [L664] COND FALSE !(\read(tmp)) [L672] tmp___0 = __VERIFIER_nondet_int() [L674] COND FALSE !(\read(tmp___0)) [L682] tmp___2 = __VERIFIER_nondet_int() [L684] COND TRUE \read(tmp___2) [L913] systemActive = 1 [L722] COND FALSE !(\read(pumpRunning)) [L729] COND TRUE \read(systemActive) [L777] int tmp ; [L780] COND FALSE !(\read(pumpRunning)) [L751] int tmp ; [L754] COND FALSE !(\read(pumpRunning)) [L937] int tmp ; [L938] int tmp___0 ; [L593] int retValue_acc ; [L596] retValue_acc = methaneLevelCritical [L597] return (retValue_acc); [L942] tmp = isMethaneLevelCritical() [L944] COND FALSE !(\read(tmp)) [L960] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...