./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC --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 3db1272a61775d34f69f5bded6b264e1f3c0c6e0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-7b2dab5 [2021-10-11 00:21:44,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:21:44,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:21:44,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:21:44,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:21:44,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:21:44,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:21:44,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:21:44,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:21:44,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:21:44,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:21:44,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:21:44,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:21:44,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:21:44,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:21:44,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:21:44,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:21:44,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:21:44,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:21:44,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:21:44,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:21:44,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:21:44,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:21:44,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:21:44,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:21:44,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:21:44,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:21:44,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:21:44,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:21:44,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:21:44,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:21:44,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:21:44,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:21:44,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:21:44,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:21:44,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:21:44,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:21:44,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:21:44,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:21:44,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:21:44,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:21:44,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:21:44,218 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:21:44,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:21:44,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:21:44,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:21:44,220 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:21:44,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:21:44,221 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:21:44,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:21:44,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:21:44,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:21:44,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:21:44,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:21:44,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:21:44,224 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:21:44,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:21:44,225 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:21:44,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:21:44,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:21:44,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:21:44,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:21:44,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:21:44,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:21:44,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:21:44,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:21:44,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:21:44,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:21:44,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:21:44,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:21:44,229 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_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3db1272a61775d34f69f5bded6b264e1f3c0c6e0 [2021-10-11 00:21:44,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:21:44,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:21:44,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:21:44,587 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:21:44,588 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:21:44,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2021-10-11 00:21:44,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/data/bbc8b59b8/6bf27bec993542fea6fd56b3f135f179/FLAGcb4ad5a1b [2021-10-11 00:21:45,238 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:21:45,247 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2021-10-11 00:21:45,268 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/data/bbc8b59b8/6bf27bec993542fea6fd56b3f135f179/FLAGcb4ad5a1b [2021-10-11 00:21:45,507 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/data/bbc8b59b8/6bf27bec993542fea6fd56b3f135f179 [2021-10-11 00:21:45,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:21:45,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:21:45,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:45,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:21:45,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:21:45,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:45" (1/1) ... [2021-10-11 00:21:45,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e97c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:45, skipping insertion in model container [2021-10-11 00:21:45,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:45" (1/1) ... [2021-10-11 00:21:45,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:21:45,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:21:45,911 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c[13493,13506] [2021-10-11 00:21:45,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:45,952 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:21:46,034 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c[13493,13506] [2021-10-11 00:21:46,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:46,081 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:21:46,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:46 WrapperNode [2021-10-11 00:21:46,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:46,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:46,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:21:46,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:21:46,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:46" (1/1) ... [2021-10-11 00:21:46,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:46" (1/1) ... [2021-10-11 00:21:46,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:46,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:21:46,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:21:46,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:21:46,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:46" (1/1) ... [2021-10-11 00:21:46,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:46" (1/1) ... [2021-10-11 00:21:46,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:46" (1/1) ... [2021-10-11 00:21:46,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:46" (1/1) ... [2021-10-11 00:21:46,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:46" (1/1) ... [2021-10-11 00:21:46,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:46" (1/1) ... [2021-10-11 00:21:46,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:46" (1/1) ... [2021-10-11 00:21:46,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:21:46,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:21:46,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:21:46,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:21:46,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:46" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:21:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:21:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:21:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:21:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:21:47,544 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:21:47,544 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-11 00:21:47,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:47 BoogieIcfgContainer [2021-10-11 00:21:47,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:21:47,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:21:47,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:21:47,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:21:47,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:21:45" (1/3) ... [2021-10-11 00:21:47,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66dc40d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:47, skipping insertion in model container [2021-10-11 00:21:47,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:46" (2/3) ... [2021-10-11 00:21:47,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66dc40d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:47, skipping insertion in model container [2021-10-11 00:21:47,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:47" (3/3) ... [2021-10-11 00:21:47,558 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2021-10-11 00:21:47,576 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:21:47,579 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:21:47,591 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:21:47,629 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:21:47,630 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:21:47,630 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:21:47,630 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:21:47,630 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:21:47,630 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:21:47,630 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:21:47,631 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:21:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2021-10-11 00:21:47,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:21:47,660 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:47,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:47,660 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:47,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:47,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1669144853, now seen corresponding path program 1 times [2021-10-11 00:21:47,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:47,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959275953] [2021-10-11 00:21:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:47,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:47,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959275953] [2021-10-11 00:21:47,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:47,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:21:47,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059850166] [2021-10-11 00:21:47,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:21:47,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:47,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:21:48,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:21:48,002 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2021-10-11 00:21:48,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:48,033 INFO L93 Difference]: Finished difference Result 216 states and 323 transitions. [2021-10-11 00:21:48,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:21:48,034 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 00:21:48,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:48,045 INFO L225 Difference]: With dead ends: 216 [2021-10-11 00:21:48,046 INFO L226 Difference]: Without dead ends: 107 [2021-10-11 00:21:48,049 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 [2021-10-11 00:21:48,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-11 00:21:48,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-10-11 00:21:48,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-10-11 00:21:48,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2021-10-11 00:21:48,094 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 18 [2021-10-11 00:21:48,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:48,095 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2021-10-11 00:21:48,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:21:48,095 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2021-10-11 00:21:48,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:21:48,097 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:48,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:48,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:21:48,098 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:48,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:48,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1714791690, now seen corresponding path program 1 times [2021-10-11 00:21:48,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:48,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909643418] [2021-10-11 00:21:48,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:48,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:48,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909643418] [2021-10-11 00:21:48,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:48,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:21:48,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320228647] [2021-10-11 00:21:48,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:21:48,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:48,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:21:48,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:21:48,193 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand 3 states. [2021-10-11 00:21:48,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:48,205 INFO L93 Difference]: Finished difference Result 107 states and 153 transitions. [2021-10-11 00:21:48,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:21:48,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 00:21:48,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:48,207 INFO L225 Difference]: With dead ends: 107 [2021-10-11 00:21:48,207 INFO L226 Difference]: Without dead ends: 45 [2021-10-11 00:21:48,208 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 [2021-10-11 00:21:48,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-11 00:21:48,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-10-11 00:21:48,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-10-11 00:21:48,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2021-10-11 00:21:48,215 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 19 [2021-10-11 00:21:48,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:48,215 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2021-10-11 00:21:48,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:21:48,215 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2021-10-11 00:21:48,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:21:48,216 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:48,216 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] [2021-10-11 00:21:48,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:21:48,217 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:48,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:48,218 INFO L82 PathProgramCache]: Analyzing trace with hash -458606052, now seen corresponding path program 1 times [2021-10-11 00:21:48,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:48,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750128692] [2021-10-11 00:21:48,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:48,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750128692] [2021-10-11 00:21:48,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:48,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:21:48,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099095210] [2021-10-11 00:21:48,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:21:48,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:48,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:21:48,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:21:48,383 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 6 states. [2021-10-11 00:21:48,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:48,585 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2021-10-11 00:21:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:21:48,585 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2021-10-11 00:21:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:48,587 INFO L225 Difference]: With dead ends: 84 [2021-10-11 00:21:48,587 INFO L226 Difference]: Without dead ends: 45 [2021-10-11 00:21:48,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:21:48,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-11 00:21:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-10-11 00:21:48,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-10-11 00:21:48,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2021-10-11 00:21:48,594 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 24 [2021-10-11 00:21:48,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:48,595 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2021-10-11 00:21:48,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:21:48,595 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2021-10-11 00:21:48,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 00:21:48,596 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:48,597 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] [2021-10-11 00:21:48,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:21:48,597 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:48,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:48,598 INFO L82 PathProgramCache]: Analyzing trace with hash 708469066, now seen corresponding path program 1 times [2021-10-11 00:21:48,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:48,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555342360] [2021-10-11 00:21:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:48,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:48,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555342360] [2021-10-11 00:21:48,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:48,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:21:48,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868737959] [2021-10-11 00:21:48,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:21:48,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:48,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:21:48,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:21:48,668 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand 5 states. [2021-10-11 00:21:48,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:48,762 INFO L93 Difference]: Finished difference Result 242 states and 360 transitions. [2021-10-11 00:21:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:21:48,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-10-11 00:21:48,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:48,766 INFO L225 Difference]: With dead ends: 242 [2021-10-11 00:21:48,766 INFO L226 Difference]: Without dead ends: 203 [2021-10-11 00:21:48,767 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 [2021-10-11 00:21:48,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-10-11 00:21:48,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 80. [2021-10-11 00:21:48,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2021-10-11 00:21:48,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2021-10-11 00:21:48,782 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 26 [2021-10-11 00:21:48,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:48,782 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2021-10-11 00:21:48,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:21:48,782 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2021-10-11 00:21:48,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 00:21:48,784 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:48,784 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] [2021-10-11 00:21:48,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:21:48,784 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:48,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:48,785 INFO L82 PathProgramCache]: Analyzing trace with hash 99432520, now seen corresponding path program 1 times [2021-10-11 00:21:48,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:48,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095237530] [2021-10-11 00:21:48,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:48,860 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:48,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:48,975 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:48,976 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:21:48,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:21:49,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:21:49 BoogieIcfgContainer [2021-10-11 00:21:49,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:21:49,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:21:49,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:21:49,073 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:21:49,074 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:47" (3/4) ... [2021-10-11 00:21:49,076 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:21:49,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_490deda7-8aa3-4266-bb02-59f6307a10d7/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:21:49,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:21:49,150 INFO L168 Benchmark]: Toolchain (without parser) took 3638.15 ms. Allocated memory was 153.1 MB in the beginning and 211.8 MB in the end (delta: 58.7 MB). Free memory was 114.1 MB in the beginning and 151.2 MB in the end (delta: -37.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:49,151 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 153.1 MB. Free memory was 124.7 MB in the beginning and 124.6 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:49,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.11 ms. Allocated memory is still 153.1 MB. Free memory was 113.9 MB in the beginning and 114.8 MB in the end (delta: -925.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:49,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.59 ms. Allocated memory is still 153.1 MB. Free memory was 114.8 MB in the beginning and 110.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:49,152 INFO L168 Benchmark]: Boogie Preprocessor took 91.44 ms. Allocated memory is still 153.1 MB. Free memory was 110.6 MB in the beginning and 108.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:49,153 INFO L168 Benchmark]: RCFGBuilder took 1296.37 ms. Allocated memory was 153.1 MB in the beginning and 211.8 MB in the end (delta: 58.7 MB). Free memory was 108.5 MB in the beginning and 181.9 MB in the end (delta: -73.4 MB). Peak memory consumption was 67.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:49,153 INFO L168 Benchmark]: TraceAbstraction took 1521.25 ms. Allocated memory is still 211.8 MB. Free memory was 181.9 MB in the beginning and 161.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:49,154 INFO L168 Benchmark]: Witness Printer took 75.87 ms. Allocated memory is still 211.8 MB. Free memory was 161.7 MB in the beginning and 151.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:49,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 153.1 MB. Free memory was 124.7 MB in the beginning and 124.6 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 569.11 ms. Allocated memory is still 153.1 MB. Free memory was 113.9 MB in the beginning and 114.8 MB in the end (delta: -925.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.59 ms. Allocated memory is still 153.1 MB. Free memory was 114.8 MB in the beginning and 110.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.44 ms. Allocated memory is still 153.1 MB. Free memory was 110.6 MB in the beginning and 108.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1296.37 ms. Allocated memory was 153.1 MB in the beginning and 211.8 MB in the end (delta: 58.7 MB). Free memory was 108.5 MB in the beginning and 181.9 MB in the end (delta: -73.4 MB). Peak memory consumption was 67.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1521.25 ms. Allocated memory is still 211.8 MB. Free memory was 181.9 MB in the beginning and 161.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. * Witness Printer took 75.87 ms. Allocated memory is still 211.8 MB. Free memory was 161.7 MB in the beginning and 151.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 600]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L417] int pumpRunning = 0; [L418] int systemActive = 1; [L674] int waterLevel = 1; [L675] int methaneLevelCritical = 0; [L763] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] int retValue_acc ; [L840] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L922] int retValue_acc ; [L925] retValue_acc = 1 [L926] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L846] tmp = valid_product() [L848] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L609] int splverifierCounter ; [L610] int tmp ; [L611] int tmp___0 ; [L612] int tmp___1 ; [L613] int tmp___2 ; [L616] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L618] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L620] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L626] tmp = __VERIFIER_nondet_int() [L628] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L692] COND TRUE waterLevel < 2 [L693] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L636] tmp___0 = __VERIFIER_nondet_int() [L638] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] tmp___2 = __VERIFIER_nondet_int() [L648] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L425] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] COND TRUE \read(systemActive) [L480] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L483] COND FALSE !(\read(pumpRunning)) [L454] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L457] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L863] int tmp ; [L864] int tmp___0 ; [L865] int tmp___1 ; [L713] int retValue_acc ; [L716] retValue_acc = methaneLevelCritical [L717] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L869] tmp = isMethaneLevelCritical() [L871] COND FALSE !(\read(tmp)) [L745] int retValue_acc ; [L748] retValue_acc = waterLevel [L749] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L875] tmp___0 = getWaterLevel() [L877] COND TRUE tmp___0 == 2 [L532] int retValue_acc ; [L535] retValue_acc = pumpRunning [L536] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L879] tmp___1 = isPumpRunning() [L881] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L600] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 111 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 382 SDtfs, 533 SDslu, 255 SDs, 0 SdLazy, 55 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 123 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...