./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product34.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_b0b73968-162d-4f5a-812d-ef5e36277344/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/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 b803903b6771bf10a60266d9698f7c6b6489f5c7 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:21:01,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:21:01,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:21:01,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:21:01,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:21:01,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:21:01,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:21:01,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:21:01,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:21:01,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:21:01,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:21:01,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:21:01,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:21:01,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:21:01,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:21:01,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:21:01,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:21:01,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:21:01,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:21:01,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:21:01,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:21:01,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:21:01,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:21:01,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:21:01,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:21:01,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:21:01,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:21:01,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:21:01,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:21:01,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:21:01,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:21:01,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:21:01,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:21:01,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:21:01,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:21:01,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:21:01,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:21:01,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:21:01,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:21:01,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:21:01,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:21:01,143 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:21:01,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:21:01,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:21:01,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:21:01,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:21:01,179 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:21:01,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:21:01,180 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:21:01,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:21:01,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:21:01,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:21:01,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:21:01,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:21:01,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:21:01,182 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:21:01,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:21:01,183 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:21:01,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:21:01,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:21:01,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:21:01,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:21:01,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:21:01,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:21:01,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:21:01,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:21:01,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:21:01,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:21:01,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:21:01,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:21:01,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:21:01,188 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_b0b73968-162d-4f5a-812d-ef5e36277344/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b803903b6771bf10a60266d9698f7c6b6489f5c7 [2020-11-28 03:21:01,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:21:01,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:21:01,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:21:01,506 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:21:01,508 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:21:01,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c [2020-11-28 03:21:01,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/bin/uautomizer/data/b56d73483/2d80397ef0e34d8987f5c79cdab05fb2/FLAG12262d69e [2020-11-28 03:21:02,059 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:21:02,060 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c [2020-11-28 03:21:02,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/bin/uautomizer/data/b56d73483/2d80397ef0e34d8987f5c79cdab05fb2/FLAG12262d69e [2020-11-28 03:21:02,393 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/bin/uautomizer/data/b56d73483/2d80397ef0e34d8987f5c79cdab05fb2 [2020-11-28 03:21:02,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:21:02,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:21:02,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:02,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:21:02,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:21:02,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b148a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02, skipping insertion in model container [2020-11-28 03:21:02,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:21:02,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:21:02,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:02,809 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:21:02,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:02,904 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:21:02,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02 WrapperNode [2020-11-28 03:21:02,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:02,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:02,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:21:02,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:21:02,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:02,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:21:02,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:21:02,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:21:02,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:02,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:03,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:03,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... [2020-11-28 03:21:03,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:21:03,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:21:03,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:21:03,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:21:03,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/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 03:21:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:21:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:21:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:21:03,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:21:04,153 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:21:04,154 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-11-28 03:21:04,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:04 BoogieIcfgContainer [2020-11-28 03:21:04,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:21:04,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:21:04,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:21:04,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:21:04,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:21:02" (1/3) ... [2020-11-28 03:21:04,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5688355d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:04, skipping insertion in model container [2020-11-28 03:21:04,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:02" (2/3) ... [2020-11-28 03:21:04,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5688355d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:04, skipping insertion in model container [2020-11-28 03:21:04,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:04" (3/3) ... [2020-11-28 03:21:04,180 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2020-11-28 03:21:04,190 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:21:04,194 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:21:04,205 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:21:04,229 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:21:04,229 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:21:04,230 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:21:04,230 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:21:04,230 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:21:04,230 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:21:04,230 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:21:04,230 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:21:04,246 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-11-28 03:21:04,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:21:04,253 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:04,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:04,254 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:04,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:04,260 INFO L82 PathProgramCache]: Analyzing trace with hash -2138991170, now seen corresponding path program 1 times [2020-11-28 03:21:04,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:04,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357795278] [2020-11-28 03:21:04,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:04,601 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 03:21:04,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357795278] [2020-11-28 03:21:04,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:04,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:21:04,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784784110] [2020-11-28 03:21:04,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:21:04,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:04,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:21:04,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:21:04,635 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2020-11-28 03:21:04,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:04,680 INFO L93 Difference]: Finished difference Result 165 states and 248 transitions. [2020-11-28 03:21:04,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:21:04,681 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:21:04,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:04,696 INFO L225 Difference]: With dead ends: 165 [2020-11-28 03:21:04,696 INFO L226 Difference]: Without dead ends: 80 [2020-11-28 03:21:04,708 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 03:21:04,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-28 03:21:04,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-11-28 03:21:04,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-28 03:21:04,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2020-11-28 03:21:04,752 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 18 [2020-11-28 03:21:04,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:04,752 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2020-11-28 03:21:04,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:21:04,752 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2020-11-28 03:21:04,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:21:04,754 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:04,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:04,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:21:04,755 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:04,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:04,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1244945373, now seen corresponding path program 1 times [2020-11-28 03:21:04,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:04,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139049973] [2020-11-28 03:21:04,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:04,890 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 03:21:04,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139049973] [2020-11-28 03:21:04,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:04,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:21:04,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603904301] [2020-11-28 03:21:04,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:21:04,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:04,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:04,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:04,895 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand 3 states. [2020-11-28 03:21:04,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:04,917 INFO L93 Difference]: Finished difference Result 80 states and 114 transitions. [2020-11-28 03:21:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:04,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:21:04,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:04,923 INFO L225 Difference]: With dead ends: 80 [2020-11-28 03:21:04,923 INFO L226 Difference]: Without dead ends: 36 [2020-11-28 03:21:04,924 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 03:21:04,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-28 03:21:04,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-28 03:21:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-28 03:21:04,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-11-28 03:21:04,931 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2020-11-28 03:21:04,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:04,931 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-11-28 03:21:04,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:21:04,932 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-11-28 03:21:04,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:21:04,935 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:04,935 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 03:21:04,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:21:04,935 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:04,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:04,937 INFO L82 PathProgramCache]: Analyzing trace with hash 459341460, now seen corresponding path program 1 times [2020-11-28 03:21:04,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:04,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871218222] [2020-11-28 03:21:04,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:05,063 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 03:21:05,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871218222] [2020-11-28 03:21:05,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:05,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:21:05,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929719094] [2020-11-28 03:21:05,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:21:05,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:05,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:05,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:05,066 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2020-11-28 03:21:05,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:05,101 INFO L93 Difference]: Finished difference Result 66 states and 96 transitions. [2020-11-28 03:21:05,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:05,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:21:05,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:05,108 INFO L225 Difference]: With dead ends: 66 [2020-11-28 03:21:05,108 INFO L226 Difference]: Without dead ends: 36 [2020-11-28 03:21:05,109 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 03:21:05,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-28 03:21:05,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-28 03:21:05,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-28 03:21:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2020-11-28 03:21:05,114 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2020-11-28 03:21:05,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:05,114 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2020-11-28 03:21:05,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:21:05,115 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2020-11-28 03:21:05,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:21:05,115 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:05,116 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 03:21:05,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:21:05,116 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:05,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:05,117 INFO L82 PathProgramCache]: Analyzing trace with hash -179810352, now seen corresponding path program 1 times [2020-11-28 03:21:05,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:05,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913599187] [2020-11-28 03:21:05,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:05,235 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 03:21:05,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913599187] [2020-11-28 03:21:05,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:05,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:21:05,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666957108] [2020-11-28 03:21:05,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:21:05,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:05,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:05,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:05,237 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2020-11-28 03:21:05,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:05,284 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-11-28 03:21:05,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:05,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-28 03:21:05,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:05,286 INFO L225 Difference]: With dead ends: 89 [2020-11-28 03:21:05,286 INFO L226 Difference]: Without dead ends: 59 [2020-11-28 03:21:05,287 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 03:21:05,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-28 03:21:05,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2020-11-28 03:21:05,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-28 03:21:05,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 80 transitions. [2020-11-28 03:21:05,295 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 80 transitions. Word has length 25 [2020-11-28 03:21:05,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:05,295 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 80 transitions. [2020-11-28 03:21:05,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:21:05,295 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2020-11-28 03:21:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:21:05,296 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:05,297 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 03:21:05,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:21:05,297 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:05,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:05,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1667839457, now seen corresponding path program 1 times [2020-11-28 03:21:05,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:05,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654982700] [2020-11-28 03:21:05,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:05,400 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 03:21:05,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654982700] [2020-11-28 03:21:05,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:05,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:21:05,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457407638] [2020-11-28 03:21:05,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:21:05,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:05,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:21:05,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:05,402 INFO L87 Difference]: Start difference. First operand 57 states and 80 transitions. Second operand 5 states. [2020-11-28 03:21:05,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:05,472 INFO L93 Difference]: Finished difference Result 149 states and 209 transitions. [2020-11-28 03:21:05,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:21:05,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-28 03:21:05,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:05,474 INFO L225 Difference]: With dead ends: 149 [2020-11-28 03:21:05,475 INFO L226 Difference]: Without dead ends: 98 [2020-11-28 03:21:05,475 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 03:21:05,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-28 03:21:05,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 60. [2020-11-28 03:21:05,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-11-28 03:21:05,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2020-11-28 03:21:05,484 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 31 [2020-11-28 03:21:05,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:05,485 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2020-11-28 03:21:05,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:21:05,485 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2020-11-28 03:21:05,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:21:05,486 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:05,486 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 03:21:05,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:21:05,487 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:05,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:05,487 INFO L82 PathProgramCache]: Analyzing trace with hash 540443364, now seen corresponding path program 1 times [2020-11-28 03:21:05,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:05,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784692484] [2020-11-28 03:21:05,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:05,553 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 03:21:05,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784692484] [2020-11-28 03:21:05,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:05,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:21:05,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015124674] [2020-11-28 03:21:05,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:21:05,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:05,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:21:05,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:21:05,555 INFO L87 Difference]: Start difference. First operand 60 states and 83 transitions. Second operand 5 states. [2020-11-28 03:21:05,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:05,734 INFO L93 Difference]: Finished difference Result 314 states and 451 transitions. [2020-11-28 03:21:05,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:21:05,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-28 03:21:05,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:05,737 INFO L225 Difference]: With dead ends: 314 [2020-11-28 03:21:05,737 INFO L226 Difference]: Without dead ends: 260 [2020-11-28 03:21:05,738 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 03:21:05,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-11-28 03:21:05,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 106. [2020-11-28 03:21:05,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-28 03:21:05,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2020-11-28 03:21:05,771 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 31 [2020-11-28 03:21:05,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:05,774 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2020-11-28 03:21:05,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:21:05,775 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2020-11-28 03:21:05,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:21:05,779 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:05,779 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, 1] [2020-11-28 03:21:05,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:21:05,780 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:05,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:05,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1572316506, now seen corresponding path program 1 times [2020-11-28 03:21:05,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:05,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937159891] [2020-11-28 03:21:05,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:05,838 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 03:21:05,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937159891] [2020-11-28 03:21:05,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:05,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:21:05,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076256328] [2020-11-28 03:21:05,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:21:05,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:05,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:21:05,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:21:05,840 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand 4 states. [2020-11-28 03:21:05,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:05,967 INFO L93 Difference]: Finished difference Result 212 states and 295 transitions. [2020-11-28 03:21:05,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:21:05,968 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-11-28 03:21:05,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:05,969 INFO L225 Difference]: With dead ends: 212 [2020-11-28 03:21:05,969 INFO L226 Difference]: Without dead ends: 158 [2020-11-28 03:21:05,970 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 03:21:05,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-11-28 03:21:05,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 155. [2020-11-28 03:21:06,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-11-28 03:21:06,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 212 transitions. [2020-11-28 03:21:06,001 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 212 transitions. Word has length 32 [2020-11-28 03:21:06,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:06,001 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 212 transitions. [2020-11-28 03:21:06,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:21:06,002 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 212 transitions. [2020-11-28 03:21:06,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:21:06,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:06,006 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, 1] [2020-11-28 03:21:06,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:21:06,007 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:06,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:06,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1711533540, now seen corresponding path program 1 times [2020-11-28 03:21:06,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:06,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062755184] [2020-11-28 03:21:06,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:06,084 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 03:21:06,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062755184] [2020-11-28 03:21:06,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:06,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:21:06,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407348784] [2020-11-28 03:21:06,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:21:06,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:06,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:21:06,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:21:06,086 INFO L87 Difference]: Start difference. First operand 155 states and 212 transitions. Second operand 4 states. [2020-11-28 03:21:06,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:06,140 INFO L93 Difference]: Finished difference Result 350 states and 487 transitions. [2020-11-28 03:21:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:21:06,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-11-28 03:21:06,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:06,143 INFO L225 Difference]: With dead ends: 350 [2020-11-28 03:21:06,143 INFO L226 Difference]: Without dead ends: 246 [2020-11-28 03:21:06,144 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 03:21:06,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-11-28 03:21:06,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 152. [2020-11-28 03:21:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-28 03:21:06,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 208 transitions. [2020-11-28 03:21:06,164 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 208 transitions. Word has length 32 [2020-11-28 03:21:06,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:06,164 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 208 transitions. [2020-11-28 03:21:06,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:21:06,164 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 208 transitions. [2020-11-28 03:21:06,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:21:06,165 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:06,165 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, 1] [2020-11-28 03:21:06,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:21:06,166 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:06,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:06,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1197872225, now seen corresponding path program 1 times [2020-11-28 03:21:06,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:06,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62131171] [2020-11-28 03:21:06,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:06,246 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 03:21:06,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62131171] [2020-11-28 03:21:06,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:06,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:21:06,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886422691] [2020-11-28 03:21:06,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:21:06,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:06,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:21:06,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:21:06,249 INFO L87 Difference]: Start difference. First operand 152 states and 208 transitions. Second operand 6 states. [2020-11-28 03:21:06,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:06,514 INFO L93 Difference]: Finished difference Result 347 states and 484 transitions. [2020-11-28 03:21:06,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:21:06,514 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-11-28 03:21:06,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:06,515 INFO L225 Difference]: With dead ends: 347 [2020-11-28 03:21:06,515 INFO L226 Difference]: Without dead ends: 84 [2020-11-28 03:21:06,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:21:06,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-28 03:21:06,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 60. [2020-11-28 03:21:06,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-11-28 03:21:06,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2020-11-28 03:21:06,531 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 32 [2020-11-28 03:21:06,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:06,532 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2020-11-28 03:21:06,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:21:06,532 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2020-11-28 03:21:06,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:21:06,534 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:06,534 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, 1] [2020-11-28 03:21:06,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:21:06,534 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:21:06,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:06,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1969698978, now seen corresponding path program 1 times [2020-11-28 03:21:06,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:06,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863640971] [2020-11-28 03:21:06,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:06,627 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 03:21:06,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863640971] [2020-11-28 03:21:06,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:06,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:21:06,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039482570] [2020-11-28 03:21:06,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:21:06,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:06,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:21:06,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:21:06,629 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand 6 states. [2020-11-28 03:21:06,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:06,684 INFO L93 Difference]: Finished difference Result 103 states and 128 transitions. [2020-11-28 03:21:06,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:21:06,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-11-28 03:21:06,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:21:06,685 INFO L225 Difference]: With dead ends: 103 [2020-11-28 03:21:06,685 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:21:06,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:21:06,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:21:06,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:21:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:21:06,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:21:06,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-11-28 03:21:06,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:21:06,686 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:06,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:21:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:21:06,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:21:06,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:21:06,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:21:07,083 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2020-11-28 03:21:07,195 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2020-11-28 03:21:07,491 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 21 [2020-11-28 03:21:07,661 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2020-11-28 03:21:07,758 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:21:07,758 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:21:07,758 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:21:07,758 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-28 03:21:07,758 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:21:07,758 INFO L274 CegarLoopResult]: For program point L87(lines 87 100) no Hoare annotation was computed. [2020-11-28 03:21:07,759 INFO L270 CegarLoopResult]: At program point L236(lines 236 242) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~2 0) .cse0 .cse2))) [2020-11-28 03:21:07,759 INFO L270 CegarLoopResult]: At program point L236-1(lines 236 242) the Hoare annotation is: false [2020-11-28 03:21:07,759 INFO L270 CegarLoopResult]: At program point L236-2(lines 236 242) the Hoare annotation is: false [2020-11-28 03:21:07,759 INFO L274 CegarLoopResult]: For program point L765(lines 765 778) no Hoare annotation was computed. [2020-11-28 03:21:07,759 INFO L270 CegarLoopResult]: At program point L765-1(lines 1 920) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse1 .cse0 .cse2))) [2020-11-28 03:21:07,759 INFO L274 CegarLoopResult]: For program point L765-2(lines 765 778) no Hoare annotation was computed. [2020-11-28 03:21:07,759 INFO L270 CegarLoopResult]: At program point L765-3(lines 1 920) the Hoare annotation is: false [2020-11-28 03:21:07,760 INFO L274 CegarLoopResult]: For program point L765-4(lines 765 778) no Hoare annotation was computed. [2020-11-28 03:21:07,760 INFO L270 CegarLoopResult]: At program point L765-5(lines 1 920) the Hoare annotation is: false [2020-11-28 03:21:07,760 INFO L270 CegarLoopResult]: At program point L881(lines 872 885) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-11-28 03:21:07,760 INFO L270 CegarLoopResult]: At program point L369(lines 354 372) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0)) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (.cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 (not .cse1) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4 (not .cse5)) (and (let ((.cse6 (= ~waterLevel~0 1))) (or (and .cse0 .cse6 .cse3 .cse4) (and .cse6 .cse5 .cse1 .cse3 .cse4))) .cse2))) [2020-11-28 03:21:07,760 INFO L270 CegarLoopResult]: At program point L881-1(lines 872 885) the Hoare annotation is: false [2020-11-28 03:21:07,760 INFO L270 CegarLoopResult]: At program point L369-1(lines 354 372) the Hoare annotation is: false [2020-11-28 03:21:07,761 INFO L270 CegarLoopResult]: At program point L881-2(lines 872 885) the Hoare annotation is: false [2020-11-28 03:21:07,761 INFO L270 CegarLoopResult]: At program point L369-2(lines 354 372) the Hoare annotation is: false [2020-11-28 03:21:07,761 INFO L270 CegarLoopResult]: At program point L105(lines 56 106) the Hoare annotation is: false [2020-11-28 03:21:07,761 INFO L274 CegarLoopResult]: For program point L799(lines 799 803) no Hoare annotation was computed. [2020-11-28 03:21:07,761 INFO L274 CegarLoopResult]: For program point L799-3(lines 799 803) no Hoare annotation was computed. [2020-11-28 03:21:07,761 INFO L274 CegarLoopResult]: For program point L799-6(lines 799 803) no Hoare annotation was computed. [2020-11-28 03:21:07,762 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:21:07,762 INFO L274 CegarLoopResult]: For program point L58(lines 57 104) no Hoare annotation was computed. [2020-11-28 03:21:07,762 INFO L270 CegarLoopResult]: At program point L917(lines 912 920) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-28 03:21:07,762 INFO L270 CegarLoopResult]: At program point L174(lines 170 176) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-28 03:21:07,762 INFO L270 CegarLoopResult]: At program point L868(lines 863 871) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~2 0) .cse0 .cse2 (= |ULTIMATE.start_getWaterLevel_#res| 1)))) [2020-11-28 03:21:07,763 INFO L270 CegarLoopResult]: At program point L868-1(lines 863 871) the Hoare annotation is: false [2020-11-28 03:21:07,763 INFO L270 CegarLoopResult]: At program point L868-2(lines 863 871) the Hoare annotation is: false [2020-11-28 03:21:07,763 INFO L274 CegarLoopResult]: For program point L769(lines 769 775) no Hoare annotation was computed. [2020-11-28 03:21:07,763 INFO L274 CegarLoopResult]: For program point L769-2(lines 769 775) no Hoare annotation was computed. [2020-11-28 03:21:07,763 INFO L274 CegarLoopResult]: For program point L769-4(lines 769 775) no Hoare annotation was computed. [2020-11-28 03:21:07,763 INFO L274 CegarLoopResult]: For program point L59(lines 59 63) no Hoare annotation was computed. [2020-11-28 03:21:07,763 INFO L270 CegarLoopResult]: At program point L125-2(lines 125 139) the Hoare annotation is: false [2020-11-28 03:21:07,764 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:21:07,764 INFO L270 CegarLoopResult]: At program point L836(lines 831 839) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~2 0) .cse0 .cse2))) [2020-11-28 03:21:07,764 INFO L270 CegarLoopResult]: At program point L836-1(lines 831 839) the Hoare annotation is: false [2020-11-28 03:21:07,764 INFO L270 CegarLoopResult]: At program point L836-2(lines 831 839) the Hoare annotation is: false [2020-11-28 03:21:07,764 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-11-28 03:21:07,765 INFO L277 CegarLoopResult]: At program point L209(lines 190 212) the Hoare annotation is: true [2020-11-28 03:21:07,765 INFO L274 CegarLoopResult]: For program point L77(lines 77 83) no Hoare annotation was computed. [2020-11-28 03:21:07,765 INFO L270 CegarLoopResult]: At program point L77-1(lines 77 83) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse1) .cse0 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-11-28 03:21:07,765 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:21:07,765 INFO L274 CegarLoopResult]: For program point L788(line 788) no Hoare annotation was computed. [2020-11-28 03:21:07,765 INFO L274 CegarLoopResult]: For program point L788-1(line 788) no Hoare annotation was computed. [2020-11-28 03:21:07,766 INFO L274 CegarLoopResult]: For program point L788-2(line 788) no Hoare annotation was computed. [2020-11-28 03:21:07,766 INFO L274 CegarLoopResult]: For program point L95(lines 95 99) no Hoare annotation was computed. [2020-11-28 03:21:07,766 INFO L270 CegarLoopResult]: At program point L95-2(lines 229 235) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse1) .cse0 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-11-28 03:21:07,766 INFO L274 CegarLoopResult]: For program point L261(lines 261 278) no Hoare annotation was computed. [2020-11-28 03:21:07,766 INFO L274 CegarLoopResult]: For program point L261-1(lines 261 278) no Hoare annotation was computed. [2020-11-28 03:21:07,766 INFO L274 CegarLoopResult]: For program point L261-2(lines 261 278) no Hoare annotation was computed. [2020-11-28 03:21:07,767 INFO L274 CegarLoopResult]: For program point L129(lines 129 133) no Hoare annotation was computed. [2020-11-28 03:21:07,767 INFO L274 CegarLoopResult]: For program point L129-1(lines 229 235) no Hoare annotation was computed. [2020-11-28 03:21:07,767 INFO L274 CegarLoopResult]: For program point L823(lines 823 827) no Hoare annotation was computed. [2020-11-28 03:21:07,767 INFO L270 CegarLoopResult]: At program point L229(lines 228 247) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse1) .cse0 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-11-28 03:21:07,767 INFO L274 CegarLoopResult]: For program point L229-1(lines 229 235) no Hoare annotation was computed. [2020-11-28 03:21:07,767 INFO L270 CegarLoopResult]: At program point L229-2(lines 228 247) the Hoare annotation is: false [2020-11-28 03:21:07,768 INFO L270 CegarLoopResult]: At program point L229-3(lines 228 247) the Hoare annotation is: false [2020-11-28 03:21:07,768 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:21:07,768 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:21:07,768 INFO L274 CegarLoopResult]: For program point L759(lines 759 779) no Hoare annotation was computed. [2020-11-28 03:21:07,768 INFO L274 CegarLoopResult]: For program point L759-2(lines 759 779) no Hoare annotation was computed. [2020-11-28 03:21:07,768 INFO L274 CegarLoopResult]: For program point L759-4(lines 759 779) no Hoare annotation was computed. [2020-11-28 03:21:07,769 INFO L274 CegarLoopResult]: For program point L363(lines 363 367) no Hoare annotation was computed. [2020-11-28 03:21:07,769 INFO L274 CegarLoopResult]: For program point L363-2(lines 363 367) no Hoare annotation was computed. [2020-11-28 03:21:07,769 INFO L274 CegarLoopResult]: For program point L363-3(lines 363 367) no Hoare annotation was computed. [2020-11-28 03:21:07,769 INFO L274 CegarLoopResult]: For program point L363-5(lines 363 367) no Hoare annotation was computed. [2020-11-28 03:21:07,769 INFO L274 CegarLoopResult]: For program point L363-6(lines 363 367) no Hoare annotation was computed. [2020-11-28 03:21:07,769 INFO L274 CegarLoopResult]: For program point L363-8(lines 363 367) no Hoare annotation was computed. [2020-11-28 03:21:07,770 INFO L270 CegarLoopResult]: At program point L314(lines 309 317) the Hoare annotation is: (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not (= ~pumpRunning~0 0)) (= 1 ~systemActive~0) (not (= |ULTIMATE.start_isPumpRunning_#res| 0)) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-28 03:21:07,770 INFO L270 CegarLoopResult]: At program point L314-1(lines 309 317) the Hoare annotation is: false [2020-11-28 03:21:07,770 INFO L270 CegarLoopResult]: At program point L314-2(lines 309 317) the Hoare annotation is: false [2020-11-28 03:21:07,770 INFO L270 CegarLoopResult]: At program point L909(lines 1 920) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-28 03:21:07,770 INFO L274 CegarLoopResult]: For program point L876(lines 876 882) no Hoare annotation was computed. [2020-11-28 03:21:07,770 INFO L274 CegarLoopResult]: For program point L876-1(lines 876 882) no Hoare annotation was computed. [2020-11-28 03:21:07,770 INFO L274 CegarLoopResult]: For program point L876-2(lines 876 882) no Hoare annotation was computed. [2020-11-28 03:21:07,771 INFO L274 CegarLoopResult]: For program point L265(lines 265 273) no Hoare annotation was computed. [2020-11-28 03:21:07,771 INFO L274 CegarLoopResult]: For program point L265-1(lines 265 273) no Hoare annotation was computed. [2020-11-28 03:21:07,771 INFO L274 CegarLoopResult]: For program point L265-2(lines 265 273) no Hoare annotation was computed. [2020-11-28 03:21:07,771 INFO L274 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2020-11-28 03:21:07,771 INFO L270 CegarLoopResult]: At program point L67-1(lines 67 73) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse1) .cse0 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-11-28 03:21:07,771 INFO L274 CegarLoopResult]: For program point L811(lines 811 815) no Hoare annotation was computed. [2020-11-28 03:21:07,772 INFO L274 CegarLoopResult]: For program point L200(lines 200 207) no Hoare annotation was computed. [2020-11-28 03:21:07,772 INFO L277 CegarLoopResult]: At program point L200-1(lines 200 207) the Hoare annotation is: true [2020-11-28 03:21:07,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:21:07 BoogieIcfgContainer [2020-11-28 03:21:07,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:21:07,814 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:21:07,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:21:07,814 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:21:07,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:04" (3/4) ... [2020-11-28 03:21:07,825 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:21:07,853 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-11-28 03:21:07,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-28 03:21:07,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 03:21:07,856 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 03:21:07,857 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:21:07,858 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:21:07,858 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:21:07,882 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-28 03:21:07,883 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || (((((waterLevel == 1 && 1 == systemActive) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-11-28 03:21:07,883 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 0 && !(\result == 0)) && \result == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((((tmp == 0 && waterLevel == 1) && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == 1 && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0)) && 1 == systemActive) [2020-11-28 03:21:07,884 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && !(\result == 0)) && splverifierCounter == 0 [2020-11-28 03:21:07,957 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b0b73968-162d-4f5a-812d-ef5e36277344/bin/uautomizer/witness.graphml [2020-11-28 03:21:07,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:21:07,958 INFO L168 Benchmark]: Toolchain (without parser) took 5560.53 ms. Allocated memory was 96.5 MB in the beginning and 144.7 MB in the end (delta: 48.2 MB). Free memory was 64.4 MB in the beginning and 81.9 MB in the end (delta: -17.5 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:07,958 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory was 52.8 MB in the beginning and 52.8 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:07,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 506.29 ms. Allocated memory is still 96.5 MB. Free memory was 64.2 MB in the beginning and 63.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:07,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.51 ms. Allocated memory is still 96.5 MB. Free memory was 63.0 MB in the beginning and 59.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:07,959 INFO L168 Benchmark]: Boogie Preprocessor took 47.09 ms. Allocated memory is still 96.5 MB. Free memory was 59.8 MB in the beginning and 57.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:07,960 INFO L168 Benchmark]: RCFGBuilder took 1138.72 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 57.4 MB in the beginning and 86.8 MB in the end (delta: -29.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:07,960 INFO L168 Benchmark]: TraceAbstraction took 3656.32 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 85.9 MB in the beginning and 90.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 80.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:07,960 INFO L168 Benchmark]: Witness Printer took 143.05 ms. Allocated memory is still 144.7 MB. Free memory was 90.3 MB in the beginning and 83.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:07,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory was 52.8 MB in the beginning and 52.8 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 506.29 ms. Allocated memory is still 96.5 MB. Free memory was 64.2 MB in the beginning and 63.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.51 ms. Allocated memory is still 96.5 MB. Free memory was 63.0 MB in the beginning and 59.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.09 ms. Allocated memory is still 96.5 MB. Free memory was 59.8 MB in the beginning and 57.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1138.72 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 57.4 MB in the beginning and 86.8 MB in the end (delta: -29.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3656.32 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 85.9 MB in the beginning and 90.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 80.1 MB. Max. memory is 16.1 GB. * Witness Printer took 143.05 ms. Allocated memory is still 144.7 MB. Free memory was 90.3 MB in the beginning and 83.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 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: 863]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || (((((waterLevel == 1 && 1 == systemActive) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 912]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: (((((((tmp == 0 && !(\result == 0)) && \result == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((((tmp == 0 && waterLevel == 1) && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == 1 && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0)) && 1 == systemActive) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && !(\result == 0)) && splverifierCounter == 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || ((((waterLevel == 1 && 1 == systemActive) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 236]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 236]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 236]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || ((((waterLevel == 1 && 1 == systemActive) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 748 SDtfs, 767 SDslu, 993 SDs, 0 SdLazy, 160 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 315 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 34 PreInvPairs, 99 NumberOfFragments, 448 HoareAnnotationTreeSize, 34 FomulaSimplifications, 8552 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 34 FomulaSimplificationsInter, 448 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 12512 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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...