./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_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_60c357b8-2197-4a8d-a272-8e5b225c5776/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/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 2eef58443d1776324fbe6fef82cb6eff424772d8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:30:51,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:30:51,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:30:51,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:30:51,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:30:51,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:30:51,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:30:51,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:30:51,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:30:51,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:30:51,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:30:51,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:30:51,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:30:51,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:30:51,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:30:51,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:30:51,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:30:51,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:30:51,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:30:51,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:30:51,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:30:51,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:30:51,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:30:51,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:30:51,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:30:51,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:30:51,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:30:51,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:30:51,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:30:51,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:30:51,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:30:51,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:30:51,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:30:51,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:30:51,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:30:51,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:30:51,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:30:51,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:30:51,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:30:51,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:30:51,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:30:51,191 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:30:51,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:30:51,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:30:51,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:30:51,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:30:51,226 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:30:51,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:30:51,227 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:30:51,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:30:51,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:30:51,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:30:51,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:30:51,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:30:51,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:30:51,229 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:30:51,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:30:51,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:30:51,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:30:51,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:30:51,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:30:51,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:30:51,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:30:51,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:30:51,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:30:51,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:30:51,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:30:51,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:30:51,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:30:51,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:30:51,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:30:51,233 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_60c357b8-2197-4a8d-a272-8e5b225c5776/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2eef58443d1776324fbe6fef82cb6eff424772d8 [2020-11-29 18:30:51,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:30:51,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:30:51,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:30:51,603 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:30:51,604 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:30:51,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c [2020-11-29 18:30:51,697 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/bin/uautomizer/data/c9e611ff7/3a01bed965b14533a9fc48a6be462b7b/FLAG9e4bbd02a [2020-11-29 18:30:52,307 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:30:52,309 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c [2020-11-29 18:30:52,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/bin/uautomizer/data/c9e611ff7/3a01bed965b14533a9fc48a6be462b7b/FLAG9e4bbd02a [2020-11-29 18:30:52,568 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/bin/uautomizer/data/c9e611ff7/3a01bed965b14533a9fc48a6be462b7b [2020-11-29 18:30:52,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:30:52,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:30:52,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:30:52,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:30:52,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:30:52,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:30:52" (1/1) ... [2020-11-29 18:30:52,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a93d793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:52, skipping insertion in model container [2020-11-29 18:30:52,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:30:52" (1/1) ... [2020-11-29 18:30:52,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:30:52,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:30:53,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:30:53,021 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:30:53,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:30:53,171 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:30:53,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:53 WrapperNode [2020-11-29 18:30:53,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:30:53,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:30:53,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:30:53,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:30:53,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:53" (1/1) ... [2020-11-29 18:30:53,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:53" (1/1) ... [2020-11-29 18:30:53,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:30:53,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:30:53,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:30:53,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:30:53,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:53" (1/1) ... [2020-11-29 18:30:53,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:53" (1/1) ... [2020-11-29 18:30:53,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:53" (1/1) ... [2020-11-29 18:30:53,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:53" (1/1) ... [2020-11-29 18:30:53,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:53" (1/1) ... [2020-11-29 18:30:53,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:53" (1/1) ... [2020-11-29 18:30:53,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:53" (1/1) ... [2020-11-29 18:30:53,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:30:53,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:30:53,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:30:53,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:30:53,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/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 [2020-11-29 18:30:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:30:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:30:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:30:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:30:54,475 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:30:54,479 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-11-29 18:30:54,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:30:54 BoogieIcfgContainer [2020-11-29 18:30:54,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:30:54,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:30:54,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:30:54,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:30:54,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:30:52" (1/3) ... [2020-11-29 18:30:54,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8d2576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:30:54, skipping insertion in model container [2020-11-29 18:30:54,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:53" (2/3) ... [2020-11-29 18:30:54,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8d2576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:30:54, skipping insertion in model container [2020-11-29 18:30:54,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:30:54" (3/3) ... [2020-11-29 18:30:54,492 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-11-29 18:30:54,509 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:30:54,515 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 18:30:54,528 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 18:30:54,561 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:30:54,561 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:30:54,561 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:30:54,561 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:30:54,562 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:30:54,562 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:30:54,562 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:30:54,562 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:30:54,577 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-11-29 18:30:54,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 18:30:54,582 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:30:54,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:30:54,584 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:30:54,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:54,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1151090980, now seen corresponding path program 1 times [2020-11-29 18:30:54,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:54,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872247242] [2020-11-29 18:30:54,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:30:54,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:30:54,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872247242] [2020-11-29 18:30:54,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:30:54,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:30:54,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246304341] [2020-11-29 18:30:54,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:30:54,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:30:54,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:30:54,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:30:54,925 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 2 states. [2020-11-29 18:30:54,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:30:54,971 INFO L93 Difference]: Finished difference Result 160 states and 243 transitions. [2020-11-29 18:30:54,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:30:54,973 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-29 18:30:54,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:30:54,988 INFO L225 Difference]: With dead ends: 160 [2020-11-29 18:30:54,989 INFO L226 Difference]: Without dead ends: 78 [2020-11-29 18:30:55,001 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 [2020-11-29 18:30:55,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-11-29 18:30:55,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-11-29 18:30:55,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-29 18:30:55,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2020-11-29 18:30:55,042 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 18 [2020-11-29 18:30:55,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:30:55,042 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2020-11-29 18:30:55,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:30:55,043 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2020-11-29 18:30:55,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 18:30:55,044 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:30:55,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:30:55,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:30:55,045 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:30:55,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:55,046 INFO L82 PathProgramCache]: Analyzing trace with hash 932255011, now seen corresponding path program 1 times [2020-11-29 18:30:55,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:55,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084086830] [2020-11-29 18:30:55,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:30:55,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:30:55,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084086830] [2020-11-29 18:30:55,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:30:55,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:30:55,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773020835] [2020-11-29 18:30:55,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:30:55,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:30:55,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:30:55,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:30:55,221 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 3 states. [2020-11-29 18:30:55,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:30:55,241 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2020-11-29 18:30:55,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:30:55,245 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-29 18:30:55,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:30:55,246 INFO L225 Difference]: With dead ends: 78 [2020-11-29 18:30:55,246 INFO L226 Difference]: Without dead ends: 36 [2020-11-29 18:30:55,248 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 [2020-11-29 18:30:55,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-29 18:30:55,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-29 18:30:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-29 18:30:55,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-11-29 18:30:55,254 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2020-11-29 18:30:55,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:30:55,254 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-11-29 18:30:55,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:30:55,259 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-11-29 18:30:55,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 18:30:55,263 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:30:55,263 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] [2020-11-29 18:30:55,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:30:55,264 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:30:55,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:55,266 INFO L82 PathProgramCache]: Analyzing trace with hash -301457865, now seen corresponding path program 1 times [2020-11-29 18:30:55,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:55,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56465309] [2020-11-29 18:30:55,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:30:55,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:30:55,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56465309] [2020-11-29 18:30:55,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:30:55,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:30:55,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68462269] [2020-11-29 18:30:55,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:30:55,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:30:55,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:30:55,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:30:55,405 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2020-11-29 18:30:55,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:30:55,441 INFO L93 Difference]: Finished difference Result 65 states and 95 transitions. [2020-11-29 18:30:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:30:55,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-29 18:30:55,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:30:55,445 INFO L225 Difference]: With dead ends: 65 [2020-11-29 18:30:55,445 INFO L226 Difference]: Without dead ends: 36 [2020-11-29 18:30:55,446 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 [2020-11-29 18:30:55,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-29 18:30:55,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-29 18:30:55,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-29 18:30:55,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2020-11-29 18:30:55,456 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2020-11-29 18:30:55,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:30:55,457 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2020-11-29 18:30:55,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:30:55,457 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2020-11-29 18:30:55,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 18:30:55,458 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:30:55,458 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] [2020-11-29 18:30:55,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 18:30:55,458 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:30:55,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:55,459 INFO L82 PathProgramCache]: Analyzing trace with hash -608954119, now seen corresponding path program 1 times [2020-11-29 18:30:55,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:55,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482795415] [2020-11-29 18:30:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:30:55,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:30:55,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482795415] [2020-11-29 18:30:55,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:30:55,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:30:55,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136971133] [2020-11-29 18:30:55,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:30:55,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:30:55,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:30:55,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:30:55,563 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2020-11-29 18:30:55,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:30:55,603 INFO L93 Difference]: Finished difference Result 87 states and 125 transitions. [2020-11-29 18:30:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:30:55,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-29 18:30:55,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:30:55,605 INFO L225 Difference]: With dead ends: 87 [2020-11-29 18:30:55,605 INFO L226 Difference]: Without dead ends: 58 [2020-11-29 18:30:55,606 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 [2020-11-29 18:30:55,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-29 18:30:55,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-11-29 18:30:55,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-29 18:30:55,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2020-11-29 18:30:55,614 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 25 [2020-11-29 18:30:55,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:30:55,615 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2020-11-29 18:30:55,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:30:55,618 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2020-11-29 18:30:55,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 18:30:55,620 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:30:55,620 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] [2020-11-29 18:30:55,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 18:30:55,621 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:30:55,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:55,622 INFO L82 PathProgramCache]: Analyzing trace with hash -584147931, now seen corresponding path program 1 times [2020-11-29 18:30:55,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:55,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670513051] [2020-11-29 18:30:55,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:30:55,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:30:55,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670513051] [2020-11-29 18:30:55,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:30:55,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:30:55,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528792018] [2020-11-29 18:30:55,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:30:55,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:30:55,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:30:55,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:30:55,742 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand 5 states. [2020-11-29 18:30:55,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:30:55,877 INFO L93 Difference]: Finished difference Result 254 states and 372 transitions. [2020-11-29 18:30:55,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 18:30:55,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-29 18:30:55,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:30:55,881 INFO L225 Difference]: With dead ends: 254 [2020-11-29 18:30:55,881 INFO L226 Difference]: Without dead ends: 205 [2020-11-29 18:30:55,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:30:55,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-11-29 18:30:55,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 97. [2020-11-29 18:30:55,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-29 18:30:55,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 136 transitions. [2020-11-29 18:30:55,900 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 136 transitions. Word has length 31 [2020-11-29 18:30:55,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:30:55,901 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 136 transitions. [2020-11-29 18:30:55,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:30:55,901 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 136 transitions. [2020-11-29 18:30:55,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 18:30:55,903 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:30:55,903 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] [2020-11-29 18:30:55,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 18:30:55,903 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:30:55,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:55,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1078415005, now seen corresponding path program 1 times [2020-11-29 18:30:55,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:55,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235267770] [2020-11-29 18:30:55,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:30:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:30:55,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235267770] [2020-11-29 18:30:55,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:30:55,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:30:55,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504790356] [2020-11-29 18:30:55,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:30:55,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:30:55,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:30:55,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:30:55,998 INFO L87 Difference]: Start difference. First operand 97 states and 136 transitions. Second operand 5 states. [2020-11-29 18:30:56,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:30:56,126 INFO L93 Difference]: Finished difference Result 346 states and 493 transitions. [2020-11-29 18:30:56,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 18:30:56,127 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-29 18:30:56,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:30:56,130 INFO L225 Difference]: With dead ends: 346 [2020-11-29 18:30:56,130 INFO L226 Difference]: Without dead ends: 256 [2020-11-29 18:30:56,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:30:56,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-11-29 18:30:56,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 96. [2020-11-29 18:30:56,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-29 18:30:56,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 133 transitions. [2020-11-29 18:30:56,166 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 133 transitions. Word has length 32 [2020-11-29 18:30:56,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:30:56,167 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 133 transitions. [2020-11-29 18:30:56,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:30:56,167 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 133 transitions. [2020-11-29 18:30:56,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 18:30:56,169 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:30:56,169 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] [2020-11-29 18:30:56,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 18:30:56,169 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:30:56,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:56,170 INFO L82 PathProgramCache]: Analyzing trace with hash 144951296, now seen corresponding path program 1 times [2020-11-29 18:30:56,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:56,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920822862] [2020-11-29 18:30:56,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:30:56,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:30:56,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920822862] [2020-11-29 18:30:56,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:30:56,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:30:56,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569482501] [2020-11-29 18:30:56,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:30:56,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:30:56,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:30:56,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:30:56,258 INFO L87 Difference]: Start difference. First operand 96 states and 133 transitions. Second operand 5 states. [2020-11-29 18:30:56,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:30:56,329 INFO L93 Difference]: Finished difference Result 245 states and 340 transitions. [2020-11-29 18:30:56,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:30:56,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-29 18:30:56,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:30:56,331 INFO L225 Difference]: With dead ends: 245 [2020-11-29 18:30:56,331 INFO L226 Difference]: Without dead ends: 156 [2020-11-29 18:30:56,332 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 [2020-11-29 18:30:56,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-11-29 18:30:56,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 102. [2020-11-29 18:30:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-29 18:30:56,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2020-11-29 18:30:56,346 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 32 [2020-11-29 18:30:56,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:30:56,347 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2020-11-29 18:30:56,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:30:56,347 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2020-11-29 18:30:56,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 18:30:56,349 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:30:56,349 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] [2020-11-29 18:30:56,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 18:30:56,349 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:30:56,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:56,350 INFO L82 PathProgramCache]: Analyzing trace with hash 846015874, now seen corresponding path program 1 times [2020-11-29 18:30:56,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:56,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050348192] [2020-11-29 18:30:56,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:30:56,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:30:56,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050348192] [2020-11-29 18:30:56,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:30:56,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:30:56,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177681618] [2020-11-29 18:30:56,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:30:56,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:30:56,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:30:56,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:30:56,417 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand 5 states. [2020-11-29 18:30:56,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:30:56,517 INFO L93 Difference]: Finished difference Result 279 states and 379 transitions. [2020-11-29 18:30:56,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:30:56,518 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-29 18:30:56,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:30:56,519 INFO L225 Difference]: With dead ends: 279 [2020-11-29 18:30:56,519 INFO L226 Difference]: Without dead ends: 184 [2020-11-29 18:30:56,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:30:56,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-29 18:30:56,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 106. [2020-11-29 18:30:56,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-29 18:30:56,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions. [2020-11-29 18:30:56,538 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 143 transitions. Word has length 32 [2020-11-29 18:30:56,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:30:56,539 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 143 transitions. [2020-11-29 18:30:56,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:30:56,539 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 143 transitions. [2020-11-29 18:30:56,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 18:30:56,547 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:30:56,547 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] [2020-11-29 18:30:56,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 18:30:56,549 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:30:56,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:56,549 INFO L82 PathProgramCache]: Analyzing trace with hash 259209860, now seen corresponding path program 1 times [2020-11-29 18:30:56,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:56,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265353822] [2020-11-29 18:30:56,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:30:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:30:56,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265353822] [2020-11-29 18:30:56,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:30:56,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:30:56,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933634106] [2020-11-29 18:30:56,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:30:56,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:30:56,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:30:56,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:30:56,637 INFO L87 Difference]: Start difference. First operand 106 states and 143 transitions. Second operand 3 states. [2020-11-29 18:30:56,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:30:56,669 INFO L93 Difference]: Finished difference Result 253 states and 341 transitions. [2020-11-29 18:30:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:30:56,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-11-29 18:30:56,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:30:56,671 INFO L225 Difference]: With dead ends: 253 [2020-11-29 18:30:56,671 INFO L226 Difference]: Without dead ends: 154 [2020-11-29 18:30:56,672 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 [2020-11-29 18:30:56,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-11-29 18:30:56,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-11-29 18:30:56,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-11-29 18:30:56,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2020-11-29 18:30:56,690 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 32 [2020-11-29 18:30:56,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:30:56,690 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2020-11-29 18:30:56,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:30:56,690 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2020-11-29 18:30:56,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 18:30:56,692 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:30:56,692 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, 1] [2020-11-29 18:30:56,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 18:30:56,692 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:30:56,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:56,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1203693628, now seen corresponding path program 1 times [2020-11-29 18:30:56,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:56,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641864605] [2020-11-29 18:30:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:30:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:30:56,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641864605] [2020-11-29 18:30:56,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:30:56,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:30:56,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929188546] [2020-11-29 18:30:56,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:30:56,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:30:56,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:30:56,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:30:56,756 INFO L87 Difference]: Start difference. First operand 154 states and 201 transitions. Second operand 3 states. [2020-11-29 18:30:56,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:30:56,801 INFO L93 Difference]: Finished difference Result 221 states and 291 transitions. [2020-11-29 18:30:56,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:30:56,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-11-29 18:30:56,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:30:56,804 INFO L225 Difference]: With dead ends: 221 [2020-11-29 18:30:56,804 INFO L226 Difference]: Without dead ends: 219 [2020-11-29 18:30:56,805 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 [2020-11-29 18:30:56,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-11-29 18:30:56,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 183. [2020-11-29 18:30:56,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-11-29 18:30:56,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 244 transitions. [2020-11-29 18:30:56,825 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 244 transitions. Word has length 33 [2020-11-29 18:30:56,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:30:56,825 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 244 transitions. [2020-11-29 18:30:56,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:30:56,825 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 244 transitions. [2020-11-29 18:30:56,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 18:30:56,826 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:30:56,826 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:30:56,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 18:30:56,827 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:30:56,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:30:56,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1206652458, now seen corresponding path program 1 times [2020-11-29 18:30:56,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:30:56,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525899267] [2020-11-29 18:30:56,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:30:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:56,897 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:30:56,969 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:30:57,031 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:30:57,032 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:30:57,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 18:30:57,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:30:57 BoogieIcfgContainer [2020-11-29 18:30:57,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:30:57,191 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:30:57,191 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:30:57,191 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:30:57,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:30:54" (3/4) ... [2020-11-29 18:30:57,193 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 18:30:57,368 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_60c357b8-2197-4a8d-a272-8e5b225c5776/bin/uautomizer/witness.graphml [2020-11-29 18:30:57,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:30:57,370 INFO L168 Benchmark]: Toolchain (without parser) took 4796.79 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 67.4 MB in the beginning and 67.4 MB in the end (delta: -57.5 kB). Peak memory consumption was 45.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:30:57,371 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 96.5 MB. Free memory is still 55.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:30:57,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.64 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 67.2 MB in the beginning and 83.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:30:57,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.66 ms. Allocated memory is still 117.4 MB. Free memory was 83.9 MB in the beginning and 80.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:30:57,374 INFO L168 Benchmark]: Boogie Preprocessor took 44.12 ms. Allocated memory is still 117.4 MB. Free memory was 80.7 MB in the beginning and 78.7 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:30:57,375 INFO L168 Benchmark]: RCFGBuilder took 1182.33 ms. Allocated memory is still 117.4 MB. Free memory was 78.6 MB in the beginning and 79.7 MB in the end (delta: -1.1 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:30:57,375 INFO L168 Benchmark]: TraceAbstraction took 2706.42 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 79.7 MB in the beginning and 88.4 MB in the end (delta: -8.6 MB). Peak memory consumption was 62.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:30:57,375 INFO L168 Benchmark]: Witness Printer took 177.61 ms. Allocated memory is still 142.6 MB. Free memory was 88.4 MB in the beginning and 67.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:30:57,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 96.5 MB. Free memory is still 55.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 598.64 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 67.2 MB in the beginning and 83.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.66 ms. Allocated memory is still 117.4 MB. Free memory was 83.9 MB in the beginning and 80.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.12 ms. Allocated memory is still 117.4 MB. Free memory was 80.7 MB in the beginning and 78.7 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1182.33 ms. Allocated memory is still 117.4 MB. Free memory was 78.6 MB in the beginning and 79.7 MB in the end (delta: -1.1 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2706.42 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 79.7 MB in the beginning and 88.4 MB in the end (delta: -8.6 MB). Peak memory consumption was 62.5 MB. Max. memory is 16.1 GB. * Witness Printer took 177.61 ms. Allocated memory is still 142.6 MB. Free memory was 88.4 MB in the beginning and 67.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L153] int waterLevel = 1; [L154] int methaneLevelCritical = 0; [L257] int methAndRunningLastTime ; [L500] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L767] int pumpRunning = 0; [L768] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L125] int retValue_acc ; [L126] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L322] int retValue_acc ; [L325] retValue_acc = 1 [L326] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L262] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L699] int splverifierCounter ; [L700] int tmp ; [L701] int tmp___0 ; [L702] int tmp___1 ; [L703] int tmp___2 ; [L706] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L708] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L710] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L716] tmp = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L171] COND TRUE waterLevel < 2 [L172] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L183] COND FALSE !(\read(methaneLevelCritical)) [L186] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L922] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L774] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L781] COND TRUE \read(systemActive) [L803] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L806] COND TRUE ! pumpRunning [L900] int retValue_acc ; [L901] int tmp ; [L902] int tmp___0 ; [L233] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L236] COND FALSE !(waterLevel < 2) [L240] retValue_acc = 0 [L241] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L906] tmp = isHighWaterSensorDry() [L908] COND FALSE !(\read(tmp)) [L911] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L913] retValue_acc = tmp___0 [L914] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L808] tmp = isHighWaterLevel() [L810] COND TRUE \read(tmp) [L831] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L267] int tmp ; [L268] int tmp___0 ; [L192] int retValue_acc ; [L195] retValue_acc = methaneLevelCritical [L196] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L272] tmp = isMethaneLevelCritical() [L274] COND TRUE \read(tmp) [L855] int retValue_acc ; [L858] retValue_acc = pumpRunning [L859] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L276] tmp___0 = isPumpRunning() [L278] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L279] COND FALSE !(\read(methAndRunningLastTime)) [L284] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L708] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L710] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L922] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L774] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L159] COND TRUE waterLevel > 0 [L160] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L781] COND TRUE \read(systemActive) [L803] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L806] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L267] int tmp ; [L268] int tmp___0 ; [L192] int retValue_acc ; [L195] retValue_acc = methaneLevelCritical [L196] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L272] tmp = isMethaneLevelCritical() [L274] COND TRUE \read(tmp) [L855] int retValue_acc ; [L858] retValue_acc = pumpRunning [L859] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L276] tmp___0 = isPumpRunning() [L278] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L279] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec2_product34.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 648 SDtfs, 728 SDslu, 845 SDs, 0 SdLazy, 107 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=10, 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, 438 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 329 NumberOfCodeBlocks, 329 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 268 ConstructedInterpolants, 0 QuantifiedInterpolants, 15162 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 incorrect! Received shutdown request...