./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product60.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_661e9df8-65c0-46b1-bb13-66153c2fedfa/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/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 e45e56c1689a2d141d3728e45b37f6229eb5b2a7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2020-11-30 00:00:44,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:00:44,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:00:44,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:00:44,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:00:44,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:00:44,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:00:44,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:00:44,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:00:44,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:00:44,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:00:44,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:00:44,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:00:44,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:00:44,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:00:44,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:00:44,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:00:44,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:00:44,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:00:44,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:00:44,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:00:44,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:00:44,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:00:44,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:00:44,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:00:44,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:00:44,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:00:44,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:00:44,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:00:44,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:00:44,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:00:44,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:00:44,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:00:44,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:00:44,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:00:44,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:00:44,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:00:44,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:00:44,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:00:44,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:00:44,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:00:44,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:00:44,281 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:00:44,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:00:44,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:00:44,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:00:44,285 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:00:44,285 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:00:44,286 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:00:44,286 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:00:44,287 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:00:44,287 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:00:44,288 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:00:44,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:00:44,289 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:00:44,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:00:44,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:00:44,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:00:44,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:00:44,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:00:44,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:00:44,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:00:44,292 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:00:44,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:00:44,293 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:00:44,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:00:44,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:00:44,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:00:44,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:00:44,295 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:00:44,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:00:44,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:00:44,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:00:44,296 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:00:44,297 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:00:44,298 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_661e9df8-65c0-46b1-bb13-66153c2fedfa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e45e56c1689a2d141d3728e45b37f6229eb5b2a7 [2020-11-30 00:00:44,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:00:44,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:00:44,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:00:44,699 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:00:44,702 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:00:44,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2020-11-30 00:00:44,803 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/bin/uautomizer/data/0da859beb/bc2cb9d484cb4799a8e7ef070206e137/FLAGc60c1fe3e [2020-11-30 00:00:45,593 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:00:45,594 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2020-11-30 00:00:45,610 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/bin/uautomizer/data/0da859beb/bc2cb9d484cb4799a8e7ef070206e137/FLAGc60c1fe3e [2020-11-30 00:00:45,868 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/bin/uautomizer/data/0da859beb/bc2cb9d484cb4799a8e7ef070206e137 [2020-11-30 00:00:45,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:00:45,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:00:45,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:00:45,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:00:45,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:00:45,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:00:45" (1/1) ... [2020-11-30 00:00:45,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce21bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:45, skipping insertion in model container [2020-11-30 00:00:45,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:00:45" (1/1) ... [2020-11-30 00:00:45,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:00:45,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:00:46,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:00:46,502 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:00:46,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:00:46,674 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:00:46,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:46 WrapperNode [2020-11-30 00:00:46,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:00:46,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:00:46,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:00:46,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:00:46,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:46" (1/1) ... [2020-11-30 00:00:46,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:46" (1/1) ... [2020-11-30 00:00:46,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:00:46,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:00:46,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:00:46,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:00:46,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:46" (1/1) ... [2020-11-30 00:00:46,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:46" (1/1) ... [2020-11-30 00:00:46,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:46" (1/1) ... [2020-11-30 00:00:46,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:46" (1/1) ... [2020-11-30 00:00:46,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:46" (1/1) ... [2020-11-30 00:00:46,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:46" (1/1) ... [2020-11-30 00:00:46,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:46" (1/1) ... [2020-11-30 00:00:46,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:00:46,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:00:46,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:00:46,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:00:46,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/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 [2020-11-30 00:00:47,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:00:47,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:00:47,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:00:47,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:00:48,638 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:00:48,639 INFO L298 CfgBuilder]: Removed 204 assume(true) statements. [2020-11-30 00:00:48,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:48 BoogieIcfgContainer [2020-11-30 00:00:48,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:00:48,642 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:00:48,643 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:00:48,648 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:00:48,650 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:48,650 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:00:45" (1/3) ... [2020-11-30 00:00:48,652 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@195e6f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:00:48, skipping insertion in model container [2020-11-30 00:00:48,652 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:48,652 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:46" (2/3) ... [2020-11-30 00:00:48,653 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@195e6f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:00:48, skipping insertion in model container [2020-11-30 00:00:48,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:00:48,653 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:48" (3/3) ... [2020-11-30 00:00:48,657 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product60.cil.c [2020-11-30 00:00:48,721 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:00:48,722 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:00:48,722 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:00:48,722 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:00:48,722 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:00:48,723 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:00:48,723 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:00:48,723 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:00:48,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states. [2020-11-30 00:00:48,797 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-11-30 00:00:48,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:48,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:48,807 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:48,807 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:48,807 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:00:48,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states. [2020-11-30 00:00:48,818 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2020-11-30 00:00:48,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:48,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:48,820 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:48,820 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:48,827 INFO L794 eck$LassoCheckResult]: Stem: 102#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~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(21);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(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 5#L-1true havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 38#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 49#L75true main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 134#L167true assume 0 != main_~tmp~0; 78#L143true havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 132#L558-1true [2020-11-30 00:00:48,828 INFO L796 eck$LassoCheckResult]: Loop: 132#L558-1true assume !false; 47#L843true assume test_~splverifierCounter~0 < 4; 4#L844true test_~tmp~10 := test_#t~nondet68;havoc test_#t~nondet68; 6#L852true assume !(0 != test_~tmp~10); 8#L852-1true test_~tmp___0~3 := test_#t~nondet69;havoc test_#t~nondet69; 48#L862true assume !(0 != test_~tmp___0~3); 50#L862-1true test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 127#L872true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 139#L880-1true assume !(0 != ~pumpRunning~0); 29#L601true assume !(0 != ~systemActive~0); 121#L608true havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 11#L976true __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 129#L558true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 132#L558-1true [2020-11-30 00:00:48,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:48,842 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 00:00:48,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:48,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865062136] [2020-11-30 00:00:48,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:49,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:49,345 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:49,422 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:49,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:49,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1669554866, now seen corresponding path program 1 times [2020-11-30 00:00:49,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:49,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769232477] [2020-11-30 00:00:49,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:00:49,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769232477] [2020-11-30 00:00:49,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:49,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:00:49,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456551313] [2020-11-30 00:00:49,535 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:00:49,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:49,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:49,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:49,551 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 3 states. [2020-11-30 00:00:49,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:49,703 INFO L93 Difference]: Finished difference Result 262 states and 378 transitions. [2020-11-30 00:00:49,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:49,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 378 transitions. [2020-11-30 00:00:49,733 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 170 [2020-11-30 00:00:49,750 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 248 states and 363 transitions. [2020-11-30 00:00:49,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 248 [2020-11-30 00:00:49,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 248 [2020-11-30 00:00:49,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 363 transitions. [2020-11-30 00:00:49,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:00:49,763 INFO L691 BuchiCegarLoop]: Abstraction has 248 states and 363 transitions. [2020-11-30 00:00:49,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 363 transitions. [2020-11-30 00:00:49,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 246. [2020-11-30 00:00:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-11-30 00:00:49,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 360 transitions. [2020-11-30 00:00:49,833 INFO L714 BuchiCegarLoop]: Abstraction has 246 states and 360 transitions. [2020-11-30 00:00:49,833 INFO L594 BuchiCegarLoop]: Abstraction has 246 states and 360 transitions. [2020-11-30 00:00:49,833 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:00:49,834 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 360 transitions. [2020-11-30 00:00:49,839 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2020-11-30 00:00:49,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:49,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:49,841 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:49,841 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:49,841 INFO L794 eck$LassoCheckResult]: Stem: 531#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~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(21);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(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 412#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 413#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 471#L75 main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 486#L167 assume 0 != main_~tmp~0; 507#L143 havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 508#L558-1 [2020-11-30 00:00:49,842 INFO L796 eck$LassoCheckResult]: Loop: 508#L558-1 assume !false; 483#L843 assume test_~splverifierCounter~0 < 4; 484#L844 test_~tmp~10 := test_#t~nondet68;havoc test_#t~nondet68; 590#L852 assume !(0 != test_~tmp~10); 588#L852-1 test_~tmp___0~3 := test_#t~nondet69;havoc test_#t~nondet69; 587#L862 assume !(0 != test_~tmp___0~3); 585#L862-1 test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 543#L872 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 544#L880-1 assume !(0 != ~pumpRunning~0); 443#L601 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 446#L659 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 447#L633-1 assume !(0 == ~pumpRunning~0); 557#L608 havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 556#L976 __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 554#L558 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 508#L558-1 [2020-11-30 00:00:49,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:49,843 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 00:00:49,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:49,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306901877] [2020-11-30 00:00:49,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:49,969 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:50,063 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:50,099 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:50,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:50,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1405144265, now seen corresponding path program 1 times [2020-11-30 00:00:50,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:50,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897043751] [2020-11-30 00:00:50,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:50,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:00:50,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897043751] [2020-11-30 00:00:50,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:50,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:00:50,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978432294] [2020-11-30 00:00:50,134 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:00:50,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:50,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:50,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:50,135 INFO L87 Difference]: Start difference. First operand 246 states and 360 transitions. cyclomatic complexity: 117 Second operand 3 states. [2020-11-30 00:00:50,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:50,326 INFO L93 Difference]: Finished difference Result 329 states and 460 transitions. [2020-11-30 00:00:50,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:50,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 329 states and 460 transitions. [2020-11-30 00:00:50,339 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2020-11-30 00:00:50,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 329 states to 329 states and 460 transitions. [2020-11-30 00:00:50,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 329 [2020-11-30 00:00:50,349 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 329 [2020-11-30 00:00:50,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 329 states and 460 transitions. [2020-11-30 00:00:50,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:00:50,356 INFO L691 BuchiCegarLoop]: Abstraction has 329 states and 460 transitions. [2020-11-30 00:00:50,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states and 460 transitions. [2020-11-30 00:00:50,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2020-11-30 00:00:50,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-11-30 00:00:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 460 transitions. [2020-11-30 00:00:50,402 INFO L714 BuchiCegarLoop]: Abstraction has 329 states and 460 transitions. [2020-11-30 00:00:50,402 INFO L594 BuchiCegarLoop]: Abstraction has 329 states and 460 transitions. [2020-11-30 00:00:50,402 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:00:50,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 329 states and 460 transitions. [2020-11-30 00:00:50,408 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2020-11-30 00:00:50,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:00:50,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:00:50,411 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:00:50,411 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:50,412 INFO L794 eck$LassoCheckResult]: Stem: 1124#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~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(21);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(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 993#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 994#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1057#L75 main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 1073#L167 assume 0 != main_~tmp~0; 1097#L143 havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1078#L558-1 [2020-11-30 00:00:50,412 INFO L796 eck$LassoCheckResult]: Loop: 1078#L558-1 assume !false; 1069#L843 assume test_~splverifierCounter~0 < 4; 1070#L844 test_~tmp~10 := test_#t~nondet68;havoc test_#t~nondet68; 1214#L852 assume !(0 != test_~tmp~10); 999#L852-1 test_~tmp___0~3 := test_#t~nondet69;havoc test_#t~nondet69; 1000#L862 assume !(0 != test_~tmp___0~3); 1074#L862-1 test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 1075#L872 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1143#L880-1 assume !(0 != ~pumpRunning~0); 1210#L601 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1028#L659 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1029#L633-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1020#L984-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1021#L989-1 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 1095#L779-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1096#L779-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1081#L785-1 processEnvironment__wrappee__highWaterSensor_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret46;havoc processEnvironment__wrappee__highWaterSensor_#t~ret46; 1035#L637-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1031#L608 havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1135#L976 __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 1145#L558 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 1078#L558-1 [2020-11-30 00:00:50,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:50,417 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 00:00:50,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:50,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109758170] [2020-11-30 00:00:50,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:50,508 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:50,606 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:50,647 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:50,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:50,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1224409667, now seen corresponding path program 1 times [2020-11-30 00:00:50,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:50,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819896880] [2020-11-30 00:00:50,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:50,665 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:50,678 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:50,685 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:50,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:50,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1680480861, now seen corresponding path program 1 times [2020-11-30 00:00:50,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:50,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836204143] [2020-11-30 00:00:50,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:50,774 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:00:50,838 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:00:50,873 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:00:51,069 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-30 00:02:36,366 WARN L193 SmtUtils]: Spent 1.75 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:03:45,574 WARN L193 SmtUtils]: Spent 1.15 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:03:45,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:03:45 BoogieIcfgContainer [2020-11-30 00:03:45,756 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:03:45,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:03:45,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:03:45,757 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:03:45,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:48" (3/4) ... [2020-11-30 00:03:45,761 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:03:45,828 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_661e9df8-65c0-46b1-bb13-66153c2fedfa/bin/uautomizer/witness.graphml [2020-11-30 00:03:45,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:03:45,831 INFO L168 Benchmark]: Toolchain (without parser) took 179953.55 ms. Allocated memory was 113.2 MB in the beginning and 138.4 MB in the end (delta: 25.2 MB). Free memory was 80.6 MB in the beginning and 42.8 MB in the end (delta: 37.8 MB). Peak memory consumption was 62.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:45,831 INFO L168 Benchmark]: CDTParser took 1.13 ms. Allocated memory is still 75.5 MB. Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: 37.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:03:45,832 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.22 ms. Allocated memory is still 113.2 MB. Free memory was 80.6 MB in the beginning and 78.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:45,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 146.77 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 74.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:45,834 INFO L168 Benchmark]: Boogie Preprocessor took 94.74 ms. Allocated memory is still 113.2 MB. Free memory was 74.5 MB in the beginning and 71.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:45,841 INFO L168 Benchmark]: RCFGBuilder took 1720.79 ms. Allocated memory is still 113.2 MB. Free memory was 71.7 MB in the beginning and 62.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 45.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:45,841 INFO L168 Benchmark]: BuchiAutomizer took 177113.35 ms. Allocated memory was 113.2 MB in the beginning and 138.4 MB in the end (delta: 25.2 MB). Free memory was 62.4 MB in the beginning and 44.9 MB in the end (delta: 17.6 MB). Peak memory consumption was 63.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:03:45,842 INFO L168 Benchmark]: Witness Printer took 72.46 ms. Allocated memory is still 138.4 MB. Free memory was 44.9 MB in the beginning and 42.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:03:45,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13 ms. Allocated memory is still 75.5 MB. Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: 37.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 791.22 ms. Allocated memory is still 113.2 MB. Free memory was 80.6 MB in the beginning and 78.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 146.77 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 74.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.74 ms. Allocated memory is still 113.2 MB. Free memory was 74.5 MB in the beginning and 71.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1720.79 ms. Allocated memory is still 113.2 MB. Free memory was 71.7 MB in the beginning and 62.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 45.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 177113.35 ms. Allocated memory was 113.2 MB in the beginning and 138.4 MB in the end (delta: 25.2 MB). Free memory was 62.4 MB in the beginning and 44.9 MB in the end (delta: 17.6 MB). Peak memory consumption was 63.4 MB. Max. memory is 16.1 GB. * Witness Printer took 72.46 ms. Allocated memory is still 138.4 MB. Free memory was 44.9 MB in the beginning and 42.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 329 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 177.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 176.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 329 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 361 SDtfs, 320 SDslu, 248 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 842]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=15011} State at position 1 is {retValue_acc=1, NULL=0, NULL=15029, NULL=0, NULL=15011, NULL=0, NULL=15035, NULL=0, methaneLevelCritical=0, retValue_acc=0, tmp___1=0, NULL=15022, NULL=0, NULL=15013, NULL=15027, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f5670c7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e1bd6d7=0, NULL=0, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@553e6682=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11150f07=0, \result=1, head=0, pumpRunning=0, tmp=1, NULL=15014, NULL=0, \result=1, NULL=15015, NULL=0, tmp=1, NULL=0, NULL=15034, NULL=0, tmp___0=0, tmp=1, NULL=0, NULL=15024, NULL=15031, NULL=15016, head=0, NULL=0, tmp=0, NULL=15042, NULL=15020, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6510f9ee=0, NULL=0, NULL=15030, NULL=15017, NULL=15026, tmp___0=0, NULL=0, NULL=15033, NULL=0, tmp___0=0, NULL=15021, NULL=15023, tmp=0, NULL=15028, NULL=0, NULL=0, systemActive=1, \result=1, NULL=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=15012, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1930abb1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1946a838=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20ecd2b9=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64266f4e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27a86d3d=81, NULL=15041, NULL=15018, retValue_acc=1, tmp=0, retValue_acc=1, tmp___2=81, splverifierCounter=0, NULL=0, NULL=0, NULL=15025, NULL=15040, NULL=15043, NULL=15032, NULL=15019} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L80] int cleanupTimeShifts = 4; [L350] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L594] int pumpRunning = 0; [L595] int systemActive = 1; [L901] int waterLevel = 1; [L902] int methaneLevelCritical = 0; [L158] int retValue_acc ; [L159] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L165] tmp = valid_product() [L167] COND TRUE \read(tmp) [L833] int splverifierCounter ; [L834] int tmp ; [L835] int tmp___0 ; [L836] int tmp___1 ; [L837] int tmp___2 ; [L840] splverifierCounter = 0 Loop: [L842] COND TRUE 1 [L844] COND TRUE splverifierCounter < 4 [L850] tmp = __VERIFIER_nondet_int() [L852] COND FALSE !(\read(tmp)) [L860] tmp___0 = __VERIFIER_nondet_int() [L862] COND FALSE !(\read(tmp___0)) [L870] tmp___2 = __VERIFIER_nondet_int() [L872] COND TRUE \read(tmp___2) [L827] systemActive = 1 [L601] COND FALSE !(\read(pumpRunning)) [L608] COND TRUE \read(systemActive) [L656] int tmp ; [L659] COND FALSE !(\read(pumpRunning)) [L630] int tmp ; [L633] COND TRUE ! pumpRunning [L771] int retValue_acc ; [L772] int tmp ; [L773] int tmp___0 ; [L981] int retValue_acc ; [L984] COND TRUE waterLevel < 2 [L985] retValue_acc = 1 [L986] return (retValue_acc); [L777] tmp = isHighWaterSensorDry() [L779] COND TRUE \read(tmp) [L780] tmp___0 = 0 [L784] retValue_acc = tmp___0 [L785] return (retValue_acc); [L635] tmp = isHighWaterLevel() [L637] COND FALSE !(\read(tmp)) [L551] int tmp ; [L552] int tmp___0 ; [L972] int retValue_acc ; [L975] retValue_acc = waterLevel [L976] return (retValue_acc); [L556] tmp = getWaterLevel() [L558] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...