./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/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 7c153dfe33f87015b278f995b6c1e5c6fbcf815b ................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:11:01,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:11:01,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:11:01,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:11:01,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:11:01,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:11:01,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:11:01,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:11:01,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:11:01,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:11:01,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:11:01,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:11:01,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:11:01,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:11:01,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:11:01,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:11:01,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:11:01,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:11:01,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:11:01,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:11:01,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:11:01,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:11:01,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:11:01,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:11:01,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:11:01,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:11:01,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:11:01,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:11:01,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:11:01,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:11:01,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:11:01,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:11:01,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:11:01,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:11:01,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:11:01,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:11:01,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:11:01,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:11:01,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:11:01,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:11:01,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:11:01,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:11:01,382 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:11:01,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:11:01,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:11:01,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:11:01,383 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:11:01,383 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:11:01,383 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:11:01,384 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:11:01,384 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:11:01,384 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:11:01,384 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:11:01,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:11:01,384 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:11:01,384 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:11:01,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:11:01,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:11:01,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:11:01,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:11:01,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:11:01,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:11:01,385 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:11:01,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:11:01,385 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:11:01,385 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:11:01,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:11:01,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:11:01,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:11:01,386 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:11:01,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:11:01,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:11:01,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:11:01,386 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:11:01,387 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:11:01,387 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/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 -> 7c153dfe33f87015b278f995b6c1e5c6fbcf815b [2019-12-07 18:11:01,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:11:01,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:11:01,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:11:01,496 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:11:01,496 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:11:01,496 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product24.cil.c [2019-12-07 18:11:01,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/bin/uautomizer/data/849db203e/bfabd62b26e7465aa88299ec830a6c10/FLAG7aaec2f47 [2019-12-07 18:11:01,969 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:11:01,970 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/sv-benchmarks/c/product-lines/minepump_spec5_product24.cil.c [2019-12-07 18:11:01,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/bin/uautomizer/data/849db203e/bfabd62b26e7465aa88299ec830a6c10/FLAG7aaec2f47 [2019-12-07 18:11:01,986 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/bin/uautomizer/data/849db203e/bfabd62b26e7465aa88299ec830a6c10 [2019-12-07 18:11:01,988 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:11:01,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:11:01,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:11:01,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:11:01,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:11:01,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:11:01" (1/1) ... [2019-12-07 18:11:01,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581b80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:01, skipping insertion in model container [2019-12-07 18:11:01,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:11:01" (1/1) ... [2019-12-07 18:11:02,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:11:02,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:11:02,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:11:02,253 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:11:02,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:11:02,326 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:11:02,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:02 WrapperNode [2019-12-07 18:11:02,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:11:02,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:11:02,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:11:02,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:11:02,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:02" (1/1) ... [2019-12-07 18:11:02,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:02" (1/1) ... [2019-12-07 18:11:02,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:11:02,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:11:02,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:11:02,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:11:02,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:02" (1/1) ... [2019-12-07 18:11:02,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:02" (1/1) ... [2019-12-07 18:11:02,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:02" (1/1) ... [2019-12-07 18:11:02,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:02" (1/1) ... [2019-12-07 18:11:02,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:02" (1/1) ... [2019-12-07 18:11:02,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:02" (1/1) ... [2019-12-07 18:11:02,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:02" (1/1) ... [2019-12-07 18:11:02,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:11:02,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:11:02,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:11:02,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:11:02,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:11:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:11:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:11:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:11:02,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:11:02,840 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:11:02,840 INFO L287 CfgBuilder]: Removed 176 assume(true) statements. [2019-12-07 18:11:02,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:02 BoogieIcfgContainer [2019-12-07 18:11:02,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:11:02,842 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:11:02,842 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:11:02,844 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:11:02,844 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:11:02,844 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:11:01" (1/3) ... [2019-12-07 18:11:02,845 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b4d061d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:11:02, skipping insertion in model container [2019-12-07 18:11:02,845 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:11:02,845 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:11:02" (2/3) ... [2019-12-07 18:11:02,846 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b4d061d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:11:02, skipping insertion in model container [2019-12-07 18:11:02,846 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:11:02,846 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:02" (3/3) ... [2019-12-07 18:11:02,847 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product24.cil.c [2019-12-07 18:11:02,877 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:11:02,878 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:11:02,878 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:11:02,878 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:11:02,878 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:11:02,878 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:11:02,878 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:11:02,878 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:11:02,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2019-12-07 18:11:02,912 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-12-07 18:11:02,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:11:02,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:11:02,918 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:02,918 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:02,918 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:11:02,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states. [2019-12-07 18:11:02,924 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-12-07 18:11:02,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:11:02,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:11:02,925 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:02,925 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:02,929 INFO L794 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 56#L262true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 88#L270true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 96#L132true assume 0 != main_~tmp~0; 17#L103true ~switchedOnBeforeTS~0 := 0; 78#L928true havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 98#L949-1true [2019-12-07 18:11:02,930 INFO L796 eck$LassoCheckResult]: Loop: 98#L949-1true assume !false; 11#L497true assume test_~splverifierCounter~0 < 4; 94#L498true test_~tmp~4 := test_#t~nondet32;havoc test_#t~nondet32; 105#L506true assume !(0 != test_~tmp~4); 97#L506-1true test_~tmp___0~1 := test_#t~nondet33;havoc test_#t~nondet33; 13#L516true assume !(0 != test_~tmp___0~1); 15#L516-1true test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 76#L526true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 92#L534-1true havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 23#L403true __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 112#L938true assume !(0 != ~pumpRunning~0); 89#L292true assume !(0 != ~systemActive~0); 10#L299true havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 84#L226true __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 111#L949true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 98#L949-1true [2019-12-07 18:11:02,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:02,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-12-07 18:11:02,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:02,941 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204211563] [2019-12-07 18:11:02,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:03,182 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:11:03,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:03,183 INFO L82 PathProgramCache]: Analyzing trace with hash 676518966, now seen corresponding path program 1 times [2019-12-07 18:11:03,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:03,184 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47029698] [2019-12-07 18:11:03,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:03,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:11:03,224 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47029698] [2019-12-07 18:11:03,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:03,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:11:03,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971048480] [2019-12-07 18:11:03,228 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 18:11:03,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:03,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:11:03,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:11:03,240 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 3 states. [2019-12-07 18:11:03,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:03,285 INFO L93 Difference]: Finished difference Result 219 states and 311 transitions. [2019-12-07 18:11:03,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:11:03,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 311 transitions. [2019-12-07 18:11:03,292 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2019-12-07 18:11:03,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 205 states and 296 transitions. [2019-12-07 18:11:03,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 205 [2019-12-07 18:11:03,298 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 205 [2019-12-07 18:11:03,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 205 states and 296 transitions. [2019-12-07 18:11:03,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:11:03,299 INFO L688 BuchiCegarLoop]: Abstraction has 205 states and 296 transitions. [2019-12-07 18:11:03,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states and 296 transitions. [2019-12-07 18:11:03,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2019-12-07 18:11:03,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-12-07 18:11:03,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 293 transitions. [2019-12-07 18:11:03,328 INFO L711 BuchiCegarLoop]: Abstraction has 203 states and 293 transitions. [2019-12-07 18:11:03,328 INFO L591 BuchiCegarLoop]: Abstraction has 203 states and 293 transitions. [2019-12-07 18:11:03,328 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:11:03,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 203 states and 293 transitions. [2019-12-07 18:11:03,330 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2019-12-07 18:11:03,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:11:03,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:11:03,331 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:03,331 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:03,331 INFO L794 eck$LassoCheckResult]: Stem: 461#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 354#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 355#L262 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 428#L270 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 458#L132 assume 0 != main_~tmp~0; 371#L103 ~switchedOnBeforeTS~0 := 0; 372#L928 havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 362#L949-1 [2019-12-07 18:11:03,332 INFO L796 eck$LassoCheckResult]: Loop: 362#L949-1 assume !false; 358#L497 assume test_~splverifierCounter~0 < 4; 359#L498 test_~tmp~4 := test_#t~nondet32;havoc test_#t~nondet32; 462#L506 assume !(0 != test_~tmp~4); 499#L506-1 test_~tmp___0~1 := test_#t~nondet33;havoc test_#t~nondet33; 363#L516 assume !(0 != test_~tmp___0~1); 365#L516-1 test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 368#L526 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 444#L534-1 havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 383#L403 __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 384#L938 assume !(0 != ~pumpRunning~0); 446#L292 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 432#L350 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 434#L324-1 assume !(0 != ~pumpRunning~0); 480#L299 havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 452#L226 __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 453#L949 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 362#L949-1 [2019-12-07 18:11:03,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:03,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-12-07 18:11:03,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:03,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055804677] [2019-12-07 18:11:03,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:03,394 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:11:03,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:03,395 INFO L82 PathProgramCache]: Analyzing trace with hash -554713784, now seen corresponding path program 1 times [2019-12-07 18:11:03,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:03,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957182686] [2019-12-07 18:11:03,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:03,404 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:11:03,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:03,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1677326142, now seen corresponding path program 1 times [2019-12-07 18:11:03,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:03,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255176704] [2019-12-07 18:11:03,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:11:03,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:11:03,449 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255176704] [2019-12-07 18:11:03,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:11:03,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:11:03,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558360202] [2019-12-07 18:11:03,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:11:03,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:11:03,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:11:03,534 INFO L87 Difference]: Start difference. First operand 203 states and 293 transitions. cyclomatic complexity: 93 Second operand 5 states. [2019-12-07 18:11:03,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:11:03,670 INFO L93 Difference]: Finished difference Result 608 states and 873 transitions. [2019-12-07 18:11:03,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:11:03,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 608 states and 873 transitions. [2019-12-07 18:11:03,679 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 274 [2019-12-07 18:11:03,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 608 states to 608 states and 873 transitions. [2019-12-07 18:11:03,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 608 [2019-12-07 18:11:03,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 608 [2019-12-07 18:11:03,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 608 states and 873 transitions. [2019-12-07 18:11:03,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:11:03,691 INFO L688 BuchiCegarLoop]: Abstraction has 608 states and 873 transitions. [2019-12-07 18:11:03,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states and 873 transitions. [2019-12-07 18:11:03,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 399. [2019-12-07 18:11:03,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-12-07 18:11:03,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 565 transitions. [2019-12-07 18:11:03,712 INFO L711 BuchiCegarLoop]: Abstraction has 399 states and 565 transitions. [2019-12-07 18:11:03,712 INFO L591 BuchiCegarLoop]: Abstraction has 399 states and 565 transitions. [2019-12-07 18:11:03,712 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:11:03,712 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 399 states and 565 transitions. [2019-12-07 18:11:03,715 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 274 [2019-12-07 18:11:03,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:11:03,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:11:03,716 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:03,716 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:11:03,717 INFO L794 eck$LassoCheckResult]: Stem: 1289#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 1181#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1182#L262 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1255#L270 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1285#L132 assume 0 != main_~tmp~0; 1201#L103 ~switchedOnBeforeTS~0 := 0; 1202#L928 havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1276#L949-1 [2019-12-07 18:11:03,717 INFO L796 eck$LassoCheckResult]: Loop: 1276#L949-1 assume !false; 1489#L497 assume test_~splverifierCounter~0 < 4; 1486#L498 test_~tmp~4 := test_#t~nondet32;havoc test_#t~nondet32; 1484#L506 assume !(0 != test_~tmp~4); 1482#L506-1 test_~tmp___0~1 := test_#t~nondet33;havoc test_#t~nondet33; 1480#L516 assume !(0 != test_~tmp___0~1); 1478#L516-1 test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 1476#L526 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1475#L534-1 havoc __utac_acc__Specification5_spec__2_#t~ret71;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 1542#L403 __utac_acc__Specification5_spec__2_#t~ret71 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret71;havoc __utac_acc__Specification5_spec__2_#t~ret71; 1540#L938 assume !(0 != ~pumpRunning~0); 1538#L292 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1537#L350 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 1530#L324-1 assume !(0 != ~pumpRunning~0); 1522#L299 havoc __utac_acc__Specification5_spec__3_#t~ret72, __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 1283#L226 __utac_acc__Specification5_spec__3_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret72;havoc __utac_acc__Specification5_spec__3_#t~ret72; 1284#L949 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 1496#L403-1 __utac_acc__Specification5_spec__3_#t~ret73 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 1495#L953 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1276#L949-1 [2019-12-07 18:11:03,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:03,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-12-07 18:11:03,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:03,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083684556] [2019-12-07 18:11:03,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:03,774 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:11:03,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:03,775 INFO L82 PathProgramCache]: Analyzing trace with hash -504014109, now seen corresponding path program 1 times [2019-12-07 18:11:03,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:03,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136878807] [2019-12-07 18:11:03,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:03,784 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:11:03,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:11:03,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1297698851, now seen corresponding path program 1 times [2019-12-07 18:11:03,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:11:03,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851551786] [2019-12-07 18:11:03,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:11:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:11:03,833 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:11:29,049 WARN L192 SmtUtils]: Spent 25.10 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-12-07 18:11:41,036 WARN L192 SmtUtils]: Spent 11.98 s on a formula simplification that was a NOOP. DAG size: 402 [2019-12-07 18:11:41,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:11:41 BoogieIcfgContainer [2019-12-07 18:11:41,085 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:11:41,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:11:41,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:11:41,086 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:11:41,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:11:02" (3/4) ... [2019-12-07 18:11:41,088 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 18:11:41,124 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_77dc6a9f-415a-490f-8e85-51294817b626/bin/uautomizer/witness.graphml [2019-12-07 18:11:41,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:11:41,126 INFO L168 Benchmark]: Toolchain (without parser) took 39136.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 182.5 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -111.3 MB). Peak memory consumption was 71.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:41,126 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:11:41,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:41,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:41,127 INFO L168 Benchmark]: Boogie Preprocessor took 29.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:11:41,127 INFO L168 Benchmark]: RCFGBuilder took 439.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 61.6 MB). Peak memory consumption was 61.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:41,127 INFO L168 Benchmark]: BuchiAutomizer took 38243.90 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 41.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -4.3 MB). Peak memory consumption was 227.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:41,128 INFO L168 Benchmark]: Witness Printer took 38.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:11:41,129 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 439.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 61.6 MB). Peak memory consumption was 61.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38243.90 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 41.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -4.3 MB). Peak memory consumption was 227.3 MB. Max. memory is 11.5 GB. * Witness Printer took 38.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 399 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 37.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 211 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 399 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 411 SDtfs, 727 SDslu, 637 SDs, 0 SdLazy, 107 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 496]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2757} State at position 1 is {NULL=0, NULL=0, NULL=2768, NULL=2770, NULL=0, retValue_acc=0, NULL=2757, NULL=2782, NULL=2776, NULL=2766, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37ce0fb0=0, NULL=2773, tmp=0, tmp=1, NULL=0, tmp=0, NULL=0, NULL=0, NULL=2763, NULL=0, NULL=2759, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=2765, NULL=2760, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4684abb3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c29a9f1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@768167db=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@286a62b0=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=2778, NULL=0, NULL=0, retValue_acc=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=2758, \result=1, NULL=2779, head=0, pumpRunning=0, tmp___0=0, tmp=1, NULL=2780, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63de78ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d2add38=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@562e1b7f=0, NULL=2762, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bfcccbd=0, retValue_acc=1, NULL=2774, NULL=2777, tmp___2=56, NULL=2769, tmp___0=0, NULL=2772, splverifierCounter=0, NULL=0, NULL=2764, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54066cf5=0, NULL=2775, tmp=0, head=0, NULL=0, NULL=0, NULL=2761, NULL=0, NULL=0, NULL=2771, NULL=0, NULL=2767, retValue_acc=0, NULL=2781} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L280] int pumpRunning = 0; [L281] int systemActive = 1; [L724] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L922] int switchedOnBeforeTS ; [L123] int retValue_acc ; [L124] int tmp ; [L266] int retValue_acc ; [L269] retValue_acc = 1 [L270] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L927] switchedOnBeforeTS = 0 [L487] int splverifierCounter ; [L488] int tmp ; [L489] int tmp___0 ; [L490] int tmp___1 ; [L491] int tmp___2 ; [L494] splverifierCounter = 0 Loop: [L496] COND TRUE 1 [L498] COND TRUE splverifierCounter < 4 [L504] tmp = __VERIFIER_nondet_int() [L506] COND FALSE !(\read(tmp)) [L514] tmp___0 = __VERIFIER_nondet_int() [L516] COND FALSE !(\read(tmp___0)) [L524] tmp___2 = __VERIFIER_nondet_int() [L526] COND TRUE \read(tmp___2) [L481] systemActive = 1 [L399] int retValue_acc ; [L402] retValue_acc = pumpRunning [L403] return (retValue_acc); [L936] switchedOnBeforeTS = isPumpRunning() [L292] COND FALSE !(\read(pumpRunning)) [L299] COND TRUE \read(systemActive) [L347] int tmp ; [L350] COND FALSE !(\read(pumpRunning)) [L321] int tmp ; [L324] COND FALSE !(\read(pumpRunning)) [L942] int tmp ; [L943] int tmp___0 ; [L222] int retValue_acc ; [L225] retValue_acc = waterLevel [L226] return (retValue_acc); [L947] tmp = getWaterLevel() [L949] COND TRUE tmp != 2 [L399] int retValue_acc ; [L402] retValue_acc = pumpRunning [L403] return (retValue_acc); [L951] tmp___0 = isPumpRunning() [L953] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...