./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 864598d769cf301df696f6997eba405266387160 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:21:36,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:21:36,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:21:36,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:21:36,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:21:36,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:21:36,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:21:36,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:21:36,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:21:36,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:21:36,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:21:36,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:21:36,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:21:36,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:21:36,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:21:36,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:21:36,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:21:36,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:21:36,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:21:36,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:21:36,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:21:36,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:21:36,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:21:36,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:21:36,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:21:36,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:21:36,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:21:36,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:21:36,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:21:36,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:21:36,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:21:36,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:21:36,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:21:36,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:21:36,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:21:36,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:21:36,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:21:36,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:21:36,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:21:36,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:21:36,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:21:36,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:21:36,973 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:21:36,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:21:36,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:21:36,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:21:36,977 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:21:36,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:21:36,977 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:21:36,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:21:36,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:21:36,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:21:36,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:21:36,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:21:36,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:21:36,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:21:36,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:21:36,981 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:21:36,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:21:36,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:21:36,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:21:36,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:21:36,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:21:36,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:21:36,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:21:36,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:21:36,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:21:36,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:21:36,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:21:36,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:21:36,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:21:36,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f45e6ef2-51b5-491d-bd3d-859c55e4907c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 864598d769cf301df696f6997eba405266387160 [2020-11-28 03:21:37,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:21:37,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:21:37,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:21:37,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:21:37,320 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:21:37,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2020-11-28 03:21:37,429 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/data/51852ecb1/4a3448c1a5e64a198ab1b28635d909d9/FLAG7c2de2303 [2020-11-28 03:21:38,004 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:21:38,004 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/sv-benchmarks/c/product-lines/minepump_spec4_product51.cil.c [2020-11-28 03:21:38,035 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/data/51852ecb1/4a3448c1a5e64a198ab1b28635d909d9/FLAG7c2de2303 [2020-11-28 03:21:38,307 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/data/51852ecb1/4a3448c1a5e64a198ab1b28635d909d9 [2020-11-28 03:21:38,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:21:38,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:21:38,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:38,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:21:38,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:21:38,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce1e9c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38, skipping insertion in model container [2020-11-28 03:21:38,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:21:38,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:21:38,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:38,728 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:21:38,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:38,859 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:21:38,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38 WrapperNode [2020-11-28 03:21:38,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:38,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:38,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:21:38,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:21:38,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:38,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:21:38,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:21:38,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:21:38,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:39,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:21:39,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:21:39,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:21:39,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:21:39,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:21:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:21:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:21:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:21:39,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:21:40,137 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:21:40,138 INFO L298 CfgBuilder]: Removed 166 assume(true) statements. [2020-11-28 03:21:40,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:40 BoogieIcfgContainer [2020-11-28 03:21:40,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:21:40,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:21:40,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:21:40,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:21:40,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:21:38" (1/3) ... [2020-11-28 03:21:40,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8a92a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:40, skipping insertion in model container [2020-11-28 03:21:40,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (2/3) ... [2020-11-28 03:21:40,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8a92a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:40, skipping insertion in model container [2020-11-28 03:21:40,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:40" (3/3) ... [2020-11-28 03:21:40,150 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2020-11-28 03:21:40,164 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:21:40,169 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:21:40,179 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:21:40,203 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:21:40,203 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:21:40,203 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:21:40,203 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:21:40,203 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:21:40,203 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:21:40,203 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:21:40,204 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:21:40,218 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2020-11-28 03:21:40,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:21:40,223 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:40,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:40,224 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:40,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:40,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1866399249, now seen corresponding path program 1 times [2020-11-28 03:21:40,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:40,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645870177] [2020-11-28 03:21:40,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:40,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:40,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645870177] [2020-11-28 03:21:40,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:40,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:21:40,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670873009] [2020-11-28 03:21:40,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:21:40,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:40,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:21:40,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:21:40,476 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 2 states. [2020-11-28 03:21:40,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:40,509 INFO L93 Difference]: Finished difference Result 235 states and 356 transitions. [2020-11-28 03:21:40,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:21:40,510 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 03:21:40,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:40,521 INFO L225 Difference]: With dead ends: 235 [2020-11-28 03:21:40,521 INFO L226 Difference]: Without dead ends: 115 [2020-11-28 03:21:40,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:21:40,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-28 03:21:40,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-28 03:21:40,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-28 03:21:40,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2020-11-28 03:21:40,569 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2020-11-28 03:21:40,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:40,570 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2020-11-28 03:21:40,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:21:40,570 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2020-11-28 03:21:40,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:21:40,572 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:40,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:40,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:21:40,572 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:40,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:40,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1381811150, now seen corresponding path program 1 times [2020-11-28 03:21:40,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:40,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070761591] [2020-11-28 03:21:40,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:40,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070761591] [2020-11-28 03:21:40,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:40,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:21:40,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956459421] [2020-11-28 03:21:40,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:21:40,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:40,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:40,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:40,713 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2020-11-28 03:21:40,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:40,730 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2020-11-28 03:21:40,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:40,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:21:40,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:40,736 INFO L225 Difference]: With dead ends: 115 [2020-11-28 03:21:40,737 INFO L226 Difference]: Without dead ends: 49 [2020-11-28 03:21:40,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-11-28 03:21:40,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-11-28 03:21:40,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-28 03:21:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2020-11-28 03:21:40,743 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2020-11-28 03:21:40,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:40,743 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2020-11-28 03:21:40,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:21:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2020-11-28 03:21:40,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:21:40,745 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:40,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:40,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:21:40,745 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:40,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:40,746 INFO L82 PathProgramCache]: Analyzing trace with hash -426243093, now seen corresponding path program 1 times [2020-11-28 03:21:40,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:40,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361146249] [2020-11-28 03:21:40,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:40,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361146249] [2020-11-28 03:21:40,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:40,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:21:40,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285950788] [2020-11-28 03:21:40,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:21:40,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:40,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:40,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:40,844 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 3 states. [2020-11-28 03:21:40,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:40,871 INFO L93 Difference]: Finished difference Result 135 states and 201 transitions. [2020-11-28 03:21:40,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:40,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-28 03:21:40,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:40,874 INFO L225 Difference]: With dead ends: 135 [2020-11-28 03:21:40,876 INFO L226 Difference]: Without dead ends: 92 [2020-11-28 03:21:40,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:40,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-11-28 03:21:40,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2020-11-28 03:21:40,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-11-28 03:21:40,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 131 transitions. [2020-11-28 03:21:40,904 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 131 transitions. Word has length 22 [2020-11-28 03:21:40,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:40,904 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 131 transitions. [2020-11-28 03:21:40,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:21:40,905 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 131 transitions. [2020-11-28 03:21:40,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:21:40,907 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:40,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:40,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:21:40,908 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:40,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:40,910 INFO L82 PathProgramCache]: Analyzing trace with hash 844046893, now seen corresponding path program 1 times [2020-11-28 03:21:40,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:40,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607333305] [2020-11-28 03:21:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:41,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:41,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607333305] [2020-11-28 03:21:41,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:41,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:21:41,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909786718] [2020-11-28 03:21:41,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:21:41,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:41,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:41,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:41,019 INFO L87 Difference]: Start difference. First operand 88 states and 131 transitions. Second operand 3 states. [2020-11-28 03:21:41,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:41,101 INFO L93 Difference]: Finished difference Result 211 states and 318 transitions. [2020-11-28 03:21:41,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:41,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:21:41,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:41,103 INFO L225 Difference]: With dead ends: 211 [2020-11-28 03:21:41,103 INFO L226 Difference]: Without dead ends: 129 [2020-11-28 03:21:41,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:41,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-11-28 03:21:41,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2020-11-28 03:21:41,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-11-28 03:21:41,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 185 transitions. [2020-11-28 03:21:41,121 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 185 transitions. Word has length 24 [2020-11-28 03:21:41,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:41,122 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 185 transitions. [2020-11-28 03:21:41,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:21:41,122 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 185 transitions. [2020-11-28 03:21:41,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:21:41,123 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:41,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:41,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:21:41,124 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:41,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:41,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1604149312, now seen corresponding path program 1 times [2020-11-28 03:21:41,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:41,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445171154] [2020-11-28 03:21:41,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:41,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:41,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445171154] [2020-11-28 03:21:41,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:41,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:21:41,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912486983] [2020-11-28 03:21:41,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:21:41,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:41,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:21:41,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:41,256 INFO L87 Difference]: Start difference. First operand 127 states and 185 transitions. Second operand 5 states. [2020-11-28 03:21:41,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:41,408 INFO L93 Difference]: Finished difference Result 451 states and 663 transitions. [2020-11-28 03:21:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:21:41,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-28 03:21:41,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:41,411 INFO L225 Difference]: With dead ends: 451 [2020-11-28 03:21:41,411 INFO L226 Difference]: Without dead ends: 330 [2020-11-28 03:21:41,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:21:41,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-11-28 03:21:41,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 210. [2020-11-28 03:21:41,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-11-28 03:21:41,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 296 transitions. [2020-11-28 03:21:41,443 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 296 transitions. Word has length 25 [2020-11-28 03:21:41,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:41,444 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 296 transitions. [2020-11-28 03:21:41,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:21:41,444 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 296 transitions. [2020-11-28 03:21:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:21:41,448 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:41,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:41,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:21:41,448 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:41,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:41,449 INFO L82 PathProgramCache]: Analyzing trace with hash 731508994, now seen corresponding path program 1 times [2020-11-28 03:21:41,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:41,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141875195] [2020-11-28 03:21:41,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:41,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:41,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141875195] [2020-11-28 03:21:41,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:41,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:21:41,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141578927] [2020-11-28 03:21:41,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:21:41,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:41,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:21:41,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:41,561 INFO L87 Difference]: Start difference. First operand 210 states and 296 transitions. Second operand 5 states. [2020-11-28 03:21:41,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:41,728 INFO L93 Difference]: Finished difference Result 450 states and 648 transitions. [2020-11-28 03:21:41,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:21:41,728 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-28 03:21:41,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:41,731 INFO L225 Difference]: With dead ends: 450 [2020-11-28 03:21:41,731 INFO L226 Difference]: Without dead ends: 448 [2020-11-28 03:21:41,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:21:41,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-11-28 03:21:41,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 210. [2020-11-28 03:21:41,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-11-28 03:21:41,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 294 transitions. [2020-11-28 03:21:41,754 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 294 transitions. Word has length 26 [2020-11-28 03:21:41,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:41,754 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 294 transitions. [2020-11-28 03:21:41,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:21:41,754 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 294 transitions. [2020-11-28 03:21:41,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:21:41,756 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:41,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:41,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:21:41,756 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:41,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:41,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1548133156, now seen corresponding path program 1 times [2020-11-28 03:21:41,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:41,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224269657] [2020-11-28 03:21:41,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:41,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:41,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224269657] [2020-11-28 03:21:41,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:41,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:21:41,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370622914] [2020-11-28 03:21:41,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:21:41,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:41,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:21:41,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:21:41,804 INFO L87 Difference]: Start difference. First operand 210 states and 294 transitions. Second operand 4 states. [2020-11-28 03:21:41,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:41,942 INFO L93 Difference]: Finished difference Result 434 states and 619 transitions. [2020-11-28 03:21:41,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:21:41,943 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-28 03:21:41,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:41,945 INFO L225 Difference]: With dead ends: 434 [2020-11-28 03:21:41,945 INFO L226 Difference]: Without dead ends: 313 [2020-11-28 03:21:41,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:21:41,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-11-28 03:21:41,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 309. [2020-11-28 03:21:41,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-11-28 03:21:41,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 431 transitions. [2020-11-28 03:21:41,973 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 431 transitions. Word has length 31 [2020-11-28 03:21:41,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:41,973 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 431 transitions. [2020-11-28 03:21:41,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:21:41,973 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 431 transitions. [2020-11-28 03:21:41,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:21:41,975 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:41,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:41,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:21:41,975 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:41,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:41,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1289967718, now seen corresponding path program 1 times [2020-11-28 03:21:41,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:41,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482435118] [2020-11-28 03:21:41,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:42,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:42,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482435118] [2020-11-28 03:21:42,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:42,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:21:42,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360804080] [2020-11-28 03:21:42,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:21:42,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:42,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:21:42,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:21:42,054 INFO L87 Difference]: Start difference. First operand 309 states and 431 transitions. Second operand 4 states. [2020-11-28 03:21:42,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:42,138 INFO L93 Difference]: Finished difference Result 910 states and 1288 transitions. [2020-11-28 03:21:42,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:21:42,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-28 03:21:42,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:42,142 INFO L225 Difference]: With dead ends: 910 [2020-11-28 03:21:42,143 INFO L226 Difference]: Without dead ends: 688 [2020-11-28 03:21:42,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:42,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-11-28 03:21:42,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 309. [2020-11-28 03:21:42,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-11-28 03:21:42,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 427 transitions. [2020-11-28 03:21:42,171 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 427 transitions. Word has length 31 [2020-11-28 03:21:42,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:42,172 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 427 transitions. [2020-11-28 03:21:42,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:21:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 427 transitions. [2020-11-28 03:21:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:21:42,173 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:42,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:42,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:21:42,174 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:42,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:42,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1682994728, now seen corresponding path program 1 times [2020-11-28 03:21:42,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:42,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99912798] [2020-11-28 03:21:42,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:42,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:42,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99912798] [2020-11-28 03:21:42,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:42,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:21:42,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232820541] [2020-11-28 03:21:42,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:21:42,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:42,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:21:42,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:42,230 INFO L87 Difference]: Start difference. First operand 309 states and 427 transitions. Second operand 5 states. [2020-11-28 03:21:42,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:42,466 INFO L93 Difference]: Finished difference Result 920 states and 1288 transitions. [2020-11-28 03:21:42,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:21:42,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-28 03:21:42,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:42,473 INFO L225 Difference]: With dead ends: 920 [2020-11-28 03:21:42,473 INFO L226 Difference]: Without dead ends: 698 [2020-11-28 03:21:42,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:21:42,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2020-11-28 03:21:42,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 340. [2020-11-28 03:21:42,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-11-28 03:21:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 473 transitions. [2020-11-28 03:21:42,509 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 473 transitions. Word has length 31 [2020-11-28 03:21:42,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:42,510 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 473 transitions. [2020-11-28 03:21:42,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:21:42,510 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 473 transitions. [2020-11-28 03:21:42,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-28 03:21:42,514 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:42,514 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:42,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:21:42,515 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:42,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:42,515 INFO L82 PathProgramCache]: Analyzing trace with hash -2133835236, now seen corresponding path program 1 times [2020-11-28 03:21:42,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:42,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655862812] [2020-11-28 03:21:42,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:42,591 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:21:42,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655862812] [2020-11-28 03:21:42,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:42,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:21:42,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903087956] [2020-11-28 03:21:42,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:21:42,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:42,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:42,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:42,593 INFO L87 Difference]: Start difference. First operand 340 states and 473 transitions. Second operand 3 states. [2020-11-28 03:21:42,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:42,680 INFO L93 Difference]: Finished difference Result 429 states and 592 transitions. [2020-11-28 03:21:42,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:42,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-11-28 03:21:42,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:42,682 INFO L225 Difference]: With dead ends: 429 [2020-11-28 03:21:42,682 INFO L226 Difference]: Without dead ends: 162 [2020-11-28 03:21:42,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:42,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-11-28 03:21:42,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 150. [2020-11-28 03:21:42,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-11-28 03:21:42,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 196 transitions. [2020-11-28 03:21:42,695 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 196 transitions. Word has length 47 [2020-11-28 03:21:42,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:42,695 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 196 transitions. [2020-11-28 03:21:42,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:21:42,695 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 196 transitions. [2020-11-28 03:21:42,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:21:42,696 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:42,696 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:42,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:21:42,698 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:42,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:42,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1024245214, now seen corresponding path program 1 times [2020-11-28 03:21:42,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:42,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851714860] [2020-11-28 03:21:42,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:21:42,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851714860] [2020-11-28 03:21:42,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:42,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:21:42,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884910443] [2020-11-28 03:21:42,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:21:42,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:42,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:21:42,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:42,758 INFO L87 Difference]: Start difference. First operand 150 states and 196 transitions. Second operand 5 states. [2020-11-28 03:21:42,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:42,848 INFO L93 Difference]: Finished difference Result 393 states and 514 transitions. [2020-11-28 03:21:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:21:42,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-11-28 03:21:42,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:42,851 INFO L225 Difference]: With dead ends: 393 [2020-11-28 03:21:42,851 INFO L226 Difference]: Without dead ends: 249 [2020-11-28 03:21:42,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:21:42,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-11-28 03:21:42,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 159. [2020-11-28 03:21:42,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-11-28 03:21:42,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 205 transitions. [2020-11-28 03:21:42,866 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 205 transitions. Word has length 51 [2020-11-28 03:21:42,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:42,866 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 205 transitions. [2020-11-28 03:21:42,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:21:42,866 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 205 transitions. [2020-11-28 03:21:42,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:21:42,867 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:42,867 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:42,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:21:42,867 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:42,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:42,868 INFO L82 PathProgramCache]: Analyzing trace with hash -322645340, now seen corresponding path program 1 times [2020-11-28 03:21:42,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:42,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132798232] [2020-11-28 03:21:42,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:42,950 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:21:42,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132798232] [2020-11-28 03:21:42,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:42,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:21:42,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012564819] [2020-11-28 03:21:42,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:21:42,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:42,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:21:42,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:42,953 INFO L87 Difference]: Start difference. First operand 159 states and 205 transitions. Second operand 5 states. [2020-11-28 03:21:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:43,022 INFO L93 Difference]: Finished difference Result 333 states and 430 transitions. [2020-11-28 03:21:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:21:43,025 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-11-28 03:21:43,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:43,027 INFO L225 Difference]: With dead ends: 333 [2020-11-28 03:21:43,027 INFO L226 Difference]: Without dead ends: 180 [2020-11-28 03:21:43,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:21:43,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-28 03:21:43,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 135. [2020-11-28 03:21:43,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-11-28 03:21:43,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 170 transitions. [2020-11-28 03:21:43,041 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 170 transitions. Word has length 51 [2020-11-28 03:21:43,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:43,041 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 170 transitions. [2020-11-28 03:21:43,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:21:43,041 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 170 transitions. [2020-11-28 03:21:43,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-28 03:21:43,042 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:43,043 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:43,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:21:43,043 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:43,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:43,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1172394648, now seen corresponding path program 1 times [2020-11-28 03:21:43,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:43,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353040112] [2020-11-28 03:21:43,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:43,143 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:43,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353040112] [2020-11-28 03:21:43,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84423557] [2020-11-28 03:21:43,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:21:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:43,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:21:43,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:43,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:21:43,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-11-28 03:21:43,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700332409] [2020-11-28 03:21:43,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:21:43,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:43,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:21:43,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:21:43,419 INFO L87 Difference]: Start difference. First operand 135 states and 170 transitions. Second operand 8 states. [2020-11-28 03:21:43,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:43,773 INFO L93 Difference]: Finished difference Result 516 states and 669 transitions. [2020-11-28 03:21:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:21:43,773 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-11-28 03:21:43,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:43,776 INFO L225 Difference]: With dead ends: 516 [2020-11-28 03:21:43,776 INFO L226 Difference]: Without dead ends: 411 [2020-11-28 03:21:43,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:21:43,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-11-28 03:21:43,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 189. [2020-11-28 03:21:43,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-11-28 03:21:43,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 241 transitions. [2020-11-28 03:21:43,805 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 241 transitions. Word has length 52 [2020-11-28 03:21:43,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:43,806 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 241 transitions. [2020-11-28 03:21:43,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:21:43,807 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 241 transitions. [2020-11-28 03:21:43,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-11-28 03:21:43,808 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:43,808 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:44,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-28 03:21:44,028 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:44,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:44,029 INFO L82 PathProgramCache]: Analyzing trace with hash 986473432, now seen corresponding path program 2 times [2020-11-28 03:21:44,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:44,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801540546] [2020-11-28 03:21:44,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:44,209 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-28 03:21:44,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801540546] [2020-11-28 03:21:44,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:44,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:21:44,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671017548] [2020-11-28 03:21:44,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:21:44,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:44,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:21:44,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:44,212 INFO L87 Difference]: Start difference. First operand 189 states and 241 transitions. Second operand 5 states. [2020-11-28 03:21:44,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:44,665 INFO L93 Difference]: Finished difference Result 584 states and 755 transitions. [2020-11-28 03:21:44,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:21:44,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-11-28 03:21:44,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:44,669 INFO L225 Difference]: With dead ends: 584 [2020-11-28 03:21:44,669 INFO L226 Difference]: Without dead ends: 424 [2020-11-28 03:21:44,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:21:44,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-11-28 03:21:44,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 265. [2020-11-28 03:21:44,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-11-28 03:21:44,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 336 transitions. [2020-11-28 03:21:44,713 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 336 transitions. Word has length 73 [2020-11-28 03:21:44,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:44,713 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 336 transitions. [2020-11-28 03:21:44,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:21:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 336 transitions. [2020-11-28 03:21:44,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-11-28 03:21:44,715 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:44,715 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:44,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:21:44,715 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:44,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:44,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1261233046, now seen corresponding path program 1 times [2020-11-28 03:21:44,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:44,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918120179] [2020-11-28 03:21:44,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:44,803 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 03:21:44,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918120179] [2020-11-28 03:21:44,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261848135] [2020-11-28 03:21:44,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:21:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:44,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:21:44,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:45,005 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-28 03:21:45,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:21:45,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-11-28 03:21:45,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833911830] [2020-11-28 03:21:45,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:21:45,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:45,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:21:45,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:21:45,010 INFO L87 Difference]: Start difference. First operand 265 states and 336 transitions. Second operand 5 states. [2020-11-28 03:21:45,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:45,081 INFO L93 Difference]: Finished difference Result 468 states and 590 transitions. [2020-11-28 03:21:45,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:21:45,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-11-28 03:21:45,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:45,082 INFO L225 Difference]: With dead ends: 468 [2020-11-28 03:21:45,082 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:21:45,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:21:45,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:21:45,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:21:45,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:21:45,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:21:45,083 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2020-11-28 03:21:45,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:45,084 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:45,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:21:45,104 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:21:45,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:21:45,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-28 03:21:45,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:21:45,651 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 113 [2020-11-28 03:21:45,777 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 97 [2020-11-28 03:21:46,186 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 109 [2020-11-28 03:21:46,498 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 109 [2020-11-28 03:21:46,725 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 105 [2020-11-28 03:21:46,925 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 125 [2020-11-28 03:21:47,316 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 19 [2020-11-28 03:21:47,575 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 28 [2020-11-28 03:21:47,804 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 24 [2020-11-28 03:21:48,047 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 19 [2020-11-28 03:21:48,412 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 19 [2020-11-28 03:21:48,686 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 27 [2020-11-28 03:21:49,066 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 19 [2020-11-28 03:21:49,447 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 15 [2020-11-28 03:21:49,996 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 25 [2020-11-28 03:21:49,999 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:21:49,999 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:21:49,999 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:21:49,999 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-28 03:21:49,999 INFO L270 CegarLoopResult]: At program point L268(lines 259 272) the Hoare annotation is: false [2020-11-28 03:21:50,000 INFO L270 CegarLoopResult]: At program point L268-1(lines 259 272) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-11-28 03:21:50,000 INFO L270 CegarLoopResult]: At program point L268-2(lines 259 272) the Hoare annotation is: false [2020-11-28 03:21:50,000 INFO L270 CegarLoopResult]: At program point L268-3(lines 259 272) the Hoare annotation is: false [2020-11-28 03:21:50,000 INFO L270 CegarLoopResult]: At program point L268-4(lines 259 272) the Hoare annotation is: false [2020-11-28 03:21:50,000 INFO L270 CegarLoopResult]: At program point L268-5(lines 259 272) the Hoare annotation is: false [2020-11-28 03:21:50,000 INFO L270 CegarLoopResult]: At program point L335(lines 335 341) the Hoare annotation is: (let ((.cse2 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= 0 ~systemActive~0) .cse0 .cse1) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse2 (<= 2 ~waterLevel~0) .cse1) (and .cse2 .cse0 (<= 1 ~waterLevel~0) .cse1))) [2020-11-28 03:21:50,000 INFO L270 CegarLoopResult]: At program point L335-1(lines 335 341) the Hoare annotation is: false [2020-11-28 03:21:50,000 INFO L270 CegarLoopResult]: At program point L335-2(lines 335 341) the Hoare annotation is: false [2020-11-28 03:21:50,001 INFO L270 CegarLoopResult]: At program point L105(lines 101 107) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-28 03:21:50,001 INFO L270 CegarLoopResult]: At program point L305(lines 1 973) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-28 03:21:50,001 INFO L277 CegarLoopResult]: At program point L141(lines 122 144) the Hoare annotation is: true [2020-11-28 03:21:50,001 INFO L274 CegarLoopResult]: For program point L604(line 604) no Hoare annotation was computed. [2020-11-28 03:21:50,001 INFO L274 CegarLoopResult]: For program point L604-1(line 604) no Hoare annotation was computed. [2020-11-28 03:21:50,001 INFO L274 CegarLoopResult]: For program point L604-2(line 604) no Hoare annotation was computed. [2020-11-28 03:21:50,001 INFO L270 CegarLoopResult]: At program point L439(lines 434 442) the Hoare annotation is: (and (= 0 ~systemActive~0) (= |ULTIMATE.start_isPumpRunning_#res| 0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-28 03:21:50,001 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:21:50,001 INFO L270 CegarLoopResult]: At program point L439-1(lines 434 442) the Hoare annotation is: false [2020-11-28 03:21:50,002 INFO L270 CegarLoopResult]: At program point L439-2(lines 434 442) the Hoare annotation is: false [2020-11-28 03:21:50,002 INFO L274 CegarLoopResult]: For program point L573(lines 573 586) no Hoare annotation was computed. [2020-11-28 03:21:50,002 INFO L274 CegarLoopResult]: For program point L507(lines 507 511) no Hoare annotation was computed. [2020-11-28 03:21:50,002 INFO L274 CegarLoopResult]: For program point L507-2(lines 507 511) no Hoare annotation was computed. [2020-11-28 03:21:50,002 INFO L274 CegarLoopResult]: For program point L507-3(lines 507 511) no Hoare annotation was computed. [2020-11-28 03:21:50,002 INFO L274 CegarLoopResult]: For program point L507-5(lines 507 511) no Hoare annotation was computed. [2020-11-28 03:21:50,002 INFO L274 CegarLoopResult]: For program point L507-6(lines 507 511) no Hoare annotation was computed. [2020-11-28 03:21:50,002 INFO L274 CegarLoopResult]: For program point L507-8(lines 507 511) no Hoare annotation was computed. [2020-11-28 03:21:50,002 INFO L274 CegarLoopResult]: For program point L210(lines 210 214) no Hoare annotation was computed. [2020-11-28 03:21:50,002 INFO L270 CegarLoopResult]: At program point L278(lines 273 281) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-11-28 03:21:50,002 INFO L270 CegarLoopResult]: At program point L278-1(lines 273 281) the Hoare annotation is: false [2020-11-28 03:21:50,003 INFO L270 CegarLoopResult]: At program point L278-2(lines 273 281) the Hoare annotation is: false [2020-11-28 03:21:50,003 INFO L274 CegarLoopResult]: For program point L544(lines 543 590) no Hoare annotation was computed. [2020-11-28 03:21:50,003 INFO L270 CegarLoopResult]: At program point L313(lines 308 316) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-28 03:21:50,003 INFO L274 CegarLoopResult]: For program point L545(lines 545 549) no Hoare annotation was computed. [2020-11-28 03:21:50,003 INFO L274 CegarLoopResult]: For program point L579(lines 579 585) no Hoare annotation was computed. [2020-11-28 03:21:50,003 INFO L270 CegarLoopResult]: At program point L579-1(lines 328 334) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= 0 ~systemActive~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse2 (<= 2 ~waterLevel~0) .cse1))) [2020-11-28 03:21:50,003 INFO L270 CegarLoopResult]: At program point L513(lines 498 516) the Hoare annotation is: (and (= ULTIMATE.start_isLowWaterLevel_~tmp~5 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ULTIMATE.start_isLowWaterLevel_~tmp___0~2) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_isLowWaterLevel_#res|)) [2020-11-28 03:21:50,003 INFO L270 CegarLoopResult]: At program point L513-1(lines 498 516) the Hoare annotation is: false [2020-11-28 03:21:50,003 INFO L270 CegarLoopResult]: At program point L513-2(lines 498 516) the Hoare annotation is: false [2020-11-28 03:21:50,004 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:21:50,004 INFO L274 CegarLoopResult]: For program point L186(lines 186 190) no Hoare annotation was computed. [2020-11-28 03:21:50,004 INFO L274 CegarLoopResult]: For program point L186-3(lines 186 190) no Hoare annotation was computed. [2020-11-28 03:21:50,004 INFO L274 CegarLoopResult]: For program point L186-6(lines 186 190) no Hoare annotation was computed. [2020-11-28 03:21:50,004 INFO L270 CegarLoopResult]: At program point L54-2(lines 54 68) the Hoare annotation is: false [2020-11-28 03:21:50,004 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-11-28 03:21:50,004 INFO L274 CegarLoopResult]: For program point L386(lines 386 403) no Hoare annotation was computed. [2020-11-28 03:21:50,004 INFO L274 CegarLoopResult]: For program point L386-1(lines 386 403) no Hoare annotation was computed. [2020-11-28 03:21:50,004 INFO L274 CegarLoopResult]: For program point L386-2(lines 386 403) no Hoare annotation was computed. [2020-11-28 03:21:50,004 INFO L270 CegarLoopResult]: At program point L255(lines 250 258) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (.cse3 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 .cse3 .cse1 (<= 1 ~waterLevel~0) .cse2) (and (= 0 ~systemActive~0) .cse3 .cse1))) [2020-11-28 03:21:50,005 INFO L270 CegarLoopResult]: At program point L255-1(lines 250 258) the Hoare annotation is: false [2020-11-28 03:21:50,005 INFO L270 CegarLoopResult]: At program point L255-2(lines 250 258) the Hoare annotation is: false [2020-11-28 03:21:50,005 INFO L274 CegarLoopResult]: For program point L553(lines 553 559) no Hoare annotation was computed. [2020-11-28 03:21:50,005 INFO L270 CegarLoopResult]: At program point L553-1(lines 553 559) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= 0 ~systemActive~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse2 (<= 2 ~waterLevel~0) .cse1))) [2020-11-28 03:21:50,005 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:21:50,005 INFO L274 CegarLoopResult]: For program point L157(lines 157 170) no Hoare annotation was computed. [2020-11-28 03:21:50,005 INFO L270 CegarLoopResult]: At program point L157-1(lines 1 973) the Hoare annotation is: (let ((.cse2 (= 1 ~systemActive~0)) (.cse3 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 1 |ULTIMATE.start_getWaterLevel_#res|))) (or (and (= 0 ~systemActive~0) .cse0 .cse1) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse2 .cse3 (<= 2 ~waterLevel~0) .cse1 .cse4) (and (= ~waterLevel~0 1) .cse2 .cse0 .cse1) (and .cse2 .cse3 .cse0 .cse1 (<= 1 ~waterLevel~0) .cse4))) [2020-11-28 03:21:50,005 INFO L274 CegarLoopResult]: For program point L157-2(lines 157 170) no Hoare annotation was computed. [2020-11-28 03:21:50,005 INFO L270 CegarLoopResult]: At program point L157-3(lines 1 973) the Hoare annotation is: false [2020-11-28 03:21:50,006 INFO L274 CegarLoopResult]: For program point L58(lines 58 62) no Hoare annotation was computed. [2020-11-28 03:21:50,006 INFO L274 CegarLoopResult]: For program point L58-1(lines 328 334) no Hoare annotation was computed. [2020-11-28 03:21:50,006 INFO L274 CegarLoopResult]: For program point L157-4(lines 157 170) no Hoare annotation was computed. [2020-11-28 03:21:50,006 INFO L270 CegarLoopResult]: At program point L157-5(lines 1 973) the Hoare annotation is: false [2020-11-28 03:21:50,006 INFO L274 CegarLoopResult]: For program point L521(lines 521 527) no Hoare annotation was computed. [2020-11-28 03:21:50,006 INFO L270 CegarLoopResult]: At program point L521-1(lines 521 527) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-28 03:21:50,006 INFO L274 CegarLoopResult]: For program point L488(lines 488 492) no Hoare annotation was computed. [2020-11-28 03:21:50,006 INFO L274 CegarLoopResult]: For program point L488-2(lines 488 492) no Hoare annotation was computed. [2020-11-28 03:21:50,006 INFO L274 CegarLoopResult]: For program point L488-3(lines 488 492) no Hoare annotation was computed. [2020-11-28 03:21:50,006 INFO L274 CegarLoopResult]: For program point L488-5(lines 488 492) no Hoare annotation was computed. [2020-11-28 03:21:50,006 INFO L274 CegarLoopResult]: For program point L488-6(lines 488 492) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point L488-8(lines 488 492) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point L488-9(lines 488 492) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point L488-11(lines 488 492) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point L488-12(lines 488 492) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point L488-14(lines 488 492) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point L488-15(lines 488 492) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point L488-17(lines 488 492) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point L390(lines 390 398) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point L390-1(lines 390 398) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point L390-2(lines 390 398) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point L161(lines 161 167) no Hoare annotation was computed. [2020-11-28 03:21:50,007 INFO L274 CegarLoopResult]: For program point L161-2(lines 161 167) no Hoare annotation was computed. [2020-11-28 03:21:50,008 INFO L274 CegarLoopResult]: For program point L161-4(lines 161 167) no Hoare annotation was computed. [2020-11-28 03:21:50,008 INFO L270 CegarLoopResult]: At program point L591(lines 542 592) the Hoare annotation is: false [2020-11-28 03:21:50,008 INFO L274 CegarLoopResult]: For program point L360(lines 360 377) no Hoare annotation was computed. [2020-11-28 03:21:50,008 INFO L274 CegarLoopResult]: For program point L360-1(lines 360 377) no Hoare annotation was computed. [2020-11-28 03:21:50,008 INFO L274 CegarLoopResult]: For program point L360-2(lines 360 377) no Hoare annotation was computed. [2020-11-28 03:21:50,008 INFO L274 CegarLoopResult]: For program point L360-3(lines 360 377) no Hoare annotation was computed. [2020-11-28 03:21:50,008 INFO L274 CegarLoopResult]: For program point L360-4(lines 360 377) no Hoare annotation was computed. [2020-11-28 03:21:50,008 INFO L274 CegarLoopResult]: For program point L360-5(lines 360 377) no Hoare annotation was computed. [2020-11-28 03:21:50,008 INFO L270 CegarLoopResult]: At program point L328(lines 327 346) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= 0 ~systemActive~0) (= ~pumpRunning~0 0) .cse0) (and (= 1 ~systemActive~0) .cse0 (<= 1 ~waterLevel~0)))) [2020-11-28 03:21:50,008 INFO L274 CegarLoopResult]: For program point L328-1(lines 328 334) no Hoare annotation was computed. [2020-11-28 03:21:50,008 INFO L270 CegarLoopResult]: At program point L328-2(lines 327 346) the Hoare annotation is: false [2020-11-28 03:21:50,009 INFO L270 CegarLoopResult]: At program point L328-3(lines 327 346) the Hoare annotation is: false [2020-11-28 03:21:50,009 INFO L270 CegarLoopResult]: At program point L494(lines 479 497) the Hoare annotation is: false [2020-11-28 03:21:50,009 INFO L270 CegarLoopResult]: At program point L494-1(lines 479 497) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) (.cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not .cse0) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) (not .cse1) .cse2 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse3 .cse4 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4))) [2020-11-28 03:21:50,009 INFO L270 CegarLoopResult]: At program point L494-2(lines 479 497) the Hoare annotation is: false [2020-11-28 03:21:50,009 INFO L270 CegarLoopResult]: At program point L494-3(lines 479 497) the Hoare annotation is: false [2020-11-28 03:21:50,009 INFO L270 CegarLoopResult]: At program point L494-4(lines 479 497) the Hoare annotation is: false [2020-11-28 03:21:50,009 INFO L270 CegarLoopResult]: At program point L494-5(lines 479 497) the Hoare annotation is: false [2020-11-28 03:21:50,009 INFO L274 CegarLoopResult]: For program point L263(lines 263 269) no Hoare annotation was computed. [2020-11-28 03:21:50,009 INFO L274 CegarLoopResult]: For program point L263-1(lines 263 269) no Hoare annotation was computed. [2020-11-28 03:21:50,009 INFO L274 CegarLoopResult]: For program point L263-2(lines 263 269) no Hoare annotation was computed. [2020-11-28 03:21:50,010 INFO L274 CegarLoopResult]: For program point L263-3(lines 263 269) no Hoare annotation was computed. [2020-11-28 03:21:50,010 INFO L274 CegarLoopResult]: For program point L263-4(lines 263 269) no Hoare annotation was computed. [2020-11-28 03:21:50,010 INFO L274 CegarLoopResult]: For program point L263-5(lines 263 269) no Hoare annotation was computed. [2020-11-28 03:21:50,010 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:21:50,010 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:21:50,010 INFO L274 CegarLoopResult]: For program point L198(lines 198 202) no Hoare annotation was computed. [2020-11-28 03:21:50,010 INFO L274 CegarLoopResult]: For program point L132(lines 132 139) no Hoare annotation was computed. [2020-11-28 03:21:50,010 INFO L277 CegarLoopResult]: At program point L132-1(lines 132 139) the Hoare annotation is: true [2020-11-28 03:21:50,010 INFO L274 CegarLoopResult]: For program point L364(lines 364 372) no Hoare annotation was computed. [2020-11-28 03:21:50,010 INFO L274 CegarLoopResult]: For program point L364-1(lines 364 372) no Hoare annotation was computed. [2020-11-28 03:21:50,010 INFO L274 CegarLoopResult]: For program point L364-2(lines 364 372) no Hoare annotation was computed. [2020-11-28 03:21:50,011 INFO L274 CegarLoopResult]: For program point L364-3(lines 364 372) no Hoare annotation was computed. [2020-11-28 03:21:50,011 INFO L274 CegarLoopResult]: For program point L364-4(lines 364 372) no Hoare annotation was computed. [2020-11-28 03:21:50,011 INFO L274 CegarLoopResult]: For program point L364-5(lines 364 372) no Hoare annotation was computed. [2020-11-28 03:21:50,011 INFO L274 CegarLoopResult]: For program point L563(lines 563 569) no Hoare annotation was computed. [2020-11-28 03:21:50,011 INFO L270 CegarLoopResult]: At program point L563-1(lines 563 569) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= 0 ~systemActive~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse2 (<= 2 ~waterLevel~0) .cse1))) [2020-11-28 03:21:50,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:21:50 BoogieIcfgContainer [2020-11-28 03:21:50,038 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:21:50,038 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:21:50,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:21:50,039 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:21:50,039 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:40" (3/4) ... [2020-11-28 03:21:50,043 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:21:50,062 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-11-28 03:21:50,063 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-28 03:21:50,064 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 03:21:50,065 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 03:21:50,066 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:21:50,068 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:21:50,069 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:21:50,093 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || ((((((\result == 0 && tmp == 0) && 1 == systemActive) && 1 <= tmp) && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) [2020-11-28 03:21:50,095 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == 0 && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0)) || (((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) [2020-11-28 03:21:50,096 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 0 && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || ((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) [2020-11-28 03:21:50,097 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 == systemActive && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-11-28 03:21:50,098 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-28 03:21:50,098 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 == systemActive && \result == 0) && pumpRunning == 0) && splverifierCounter == 0 [2020-11-28 03:21:50,098 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 0 && 1 == systemActive) && \result == 0) && 1 <= tmp___0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result [2020-11-28 03:21:50,099 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && tmp___0 == 0) && !(tmp == 0)) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((((\result == 0 && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-28 03:21:50,182 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f45e6ef2-51b5-491d-bd3d-859c55e4907c/bin/uautomizer/witness.graphml [2020-11-28 03:21:50,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:21:50,184 INFO L168 Benchmark]: Toolchain (without parser) took 11873.14 ms. Allocated memory was 100.7 MB in the beginning and 270.5 MB in the end (delta: 169.9 MB). Free memory was 70.0 MB in the beginning and 179.2 MB in the end (delta: -109.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:50,184 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory was 60.2 MB in the beginning and 60.2 MB in the end (delta: 44.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:50,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.75 ms. Allocated memory is still 100.7 MB. Free memory was 69.8 MB in the beginning and 66.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:50,185 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.33 ms. Allocated memory is still 100.7 MB. Free memory was 66.6 MB in the beginning and 63.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:50,185 INFO L168 Benchmark]: Boogie Preprocessor took 54.01 ms. Allocated memory is still 100.7 MB. Free memory was 62.8 MB in the beginning and 60.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:50,186 INFO L168 Benchmark]: RCFGBuilder took 1134.78 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 60.4 MB in the beginning and 86.5 MB in the end (delta: -26.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:50,186 INFO L168 Benchmark]: TraceAbstraction took 9897.72 ms. Allocated memory was 121.6 MB in the beginning and 270.5 MB in the end (delta: 148.9 MB). Free memory was 85.8 MB in the beginning and 188.7 MB in the end (delta: -102.9 MB). Peak memory consumption was 125.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:50,186 INFO L168 Benchmark]: Witness Printer took 144.29 ms. Allocated memory is still 270.5 MB. Free memory was 188.7 MB in the beginning and 179.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:50,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory was 60.2 MB in the beginning and 60.2 MB in the end (delta: 44.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 547.75 ms. Allocated memory is still 100.7 MB. Free memory was 69.8 MB in the beginning and 66.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.33 ms. Allocated memory is still 100.7 MB. Free memory was 66.6 MB in the beginning and 63.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.01 ms. Allocated memory is still 100.7 MB. Free memory was 62.8 MB in the beginning and 60.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1134.78 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 60.4 MB in the beginning and 86.5 MB in the end (delta: -26.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9897.72 ms. Allocated memory was 121.6 MB in the beginning and 270.5 MB in the end (delta: 148.9 MB). Free memory was 85.8 MB in the beginning and 188.7 MB in the end (delta: -102.9 MB). Peak memory consumption was 125.0 MB. Max. memory is 16.1 GB. * Witness Printer took 144.29 ms. Allocated memory is still 270.5 MB. Free memory was 188.7 MB in the beginning and 179.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 328]: Loop Invariant Derived loop invariant: (((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || ((((((\result == 0 && tmp == 0) && 1 == systemActive) && 1 <= tmp) && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: (((((tmp == 0 && 1 == systemActive) && \result == 0) && 1 <= tmp___0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: ((((((\result == 0 && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || ((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: (((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && tmp___0 == 0) && !(tmp == 0)) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((((\result == 0 && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: ((0 == systemActive && \result == 0) && pumpRunning == 0) && splverifierCounter == 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: (((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: ((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || ((1 == systemActive && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: ((1 == systemActive && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: (((0 == systemActive && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == 0 && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0)) || (((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 122 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 15, TraceHistogramMax: 3, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1635 SDtfs, 1992 SDslu, 2640 SDs, 0 SdLazy, 407 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=340occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 1633 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 44 PreInvPairs, 162 NumberOfFragments, 465 HoareAnnotationTreeSize, 44 FomulaSimplifications, 1179822 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 44 FomulaSimplificationsInter, 141145 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 695 NumberOfCodeBlocks, 695 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 678 ConstructedInterpolants, 0 QuantifiedInterpolants, 55000 SizeOfPredicates, 8 NumberOfNonLiveVariables, 899 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 200/216 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...