./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product51.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_6de25588-274b-419b-8ee1-7abeff9e9c2f/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de25588-274b-419b-8ee1-7abeff9e9c2f/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_6de25588-274b-419b-8ee1-7abeff9e9c2f/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de25588-274b-419b-8ee1-7abeff9e9c2f/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de25588-274b-419b-8ee1-7abeff9e9c2f/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_6de25588-274b-419b-8ee1-7abeff9e9c2f/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 3219ef411dc22888fa71dd9e88c133c38c4dd29d .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:27:57,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:27:57,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:27:57,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:27:57,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:27:57,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:27:57,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:27:57,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:27:57,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:27:57,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:27:57,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:27:57,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:27:57,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:27:57,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:27:57,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:27:57,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:27:57,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:27:57,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:27:57,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:27:57,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:27:57,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:27:57,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:27:57,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:27:57,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:27:57,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:27:57,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:27:57,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:27:57,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:27:57,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:27:57,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:27:57,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:27:57,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:27:57,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:27:57,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:27:57,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:27:57,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:27:57,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:27:57,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:27:57,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:27:57,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:27:57,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:27:57,175 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de25588-274b-419b-8ee1-7abeff9e9c2f/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:27:57,215 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:27:57,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:27:57,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:27:57,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:27:57,219 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:27:57,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:27:57,219 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:27:57,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:27:57,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:27:57,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:27:57,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:27:57,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:27:57,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:27:57,222 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:27:57,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:27:57,223 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:27:57,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:27:57,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:27:57,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:27:57,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:27:57,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:27:57,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:27:57,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:27:57,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:27:57,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:27:57,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:27:57,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:27:57,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:27:57,227 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_6de25588-274b-419b-8ee1-7abeff9e9c2f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de25588-274b-419b-8ee1-7abeff9e9c2f/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3219ef411dc22888fa71dd9e88c133c38c4dd29d [2021-10-11 00:27:57,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:27:57,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:27:57,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:27:57,576 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:27:57,576 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:27:57,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de25588-274b-419b-8ee1-7abeff9e9c2f/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2021-10-11 00:27:57,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de25588-274b-419b-8ee1-7abeff9e9c2f/bin/uautomizer-Z5i5R5N3CC/data/ea89cf82b/78c5b339de4f46e2ad7a6bc05a8d35f3/FLAG0abc0821c [2021-10-11 00:27:58,158 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:27:58,159 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de25588-274b-419b-8ee1-7abeff9e9c2f/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2021-10-11 00:27:58,173 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de25588-274b-419b-8ee1-7abeff9e9c2f/bin/uautomizer-Z5i5R5N3CC/data/ea89cf82b/78c5b339de4f46e2ad7a6bc05a8d35f3/FLAG0abc0821c [2021-10-11 00:27:58,474 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de25588-274b-419b-8ee1-7abeff9e9c2f/bin/uautomizer-Z5i5R5N3CC/data/ea89cf82b/78c5b339de4f46e2ad7a6bc05a8d35f3 [2021-10-11 00:27:58,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:27:58,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:27:58,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:58,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:27:58,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:27:58,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:58" (1/1) ... [2021-10-11 00:27:58,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@591a207d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:58, skipping insertion in model container [2021-10-11 00:27:58,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:58" (1/1) ... [2021-10-11 00:27:58,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:27:58,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:27:58,964 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_6de25588-274b-419b-8ee1-7abeff9e9c2f/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c[14932,14945] [2021-10-11 00:27:58,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:58,998 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:27:59,053 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_6de25588-274b-419b-8ee1-7abeff9e9c2f/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c[14932,14945] [2021-10-11 00:27:59,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:59,129 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:27:59,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:59 WrapperNode [2021-10-11 00:27:59,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:59,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:59,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:27:59,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:27:59,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:59" (1/1) ... [2021-10-11 00:27:59,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:59" (1/1) ... [2021-10-11 00:27:59,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:59,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:27:59,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:27:59,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:27:59,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:59" (1/1) ... [2021-10-11 00:27:59,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:59" (1/1) ... [2021-10-11 00:27:59,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:59" (1/1) ... [2021-10-11 00:27:59,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:59" (1/1) ... [2021-10-11 00:27:59,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:59" (1/1) ... [2021-10-11 00:27:59,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:59" (1/1) ... [2021-10-11 00:27:59,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:59" (1/1) ... [2021-10-11 00:27:59,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:27:59,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:27:59,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:27:59,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:27:59,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:59" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de25588-274b-419b-8ee1-7abeff9e9c2f/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 00:27:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:27:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:27:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:27:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:28:00,255 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:28:00,255 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-10-11 00:28:00,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:00 BoogieIcfgContainer [2021-10-11 00:28:00,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:28:00,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:28:00,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:28:00,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:28:00,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:27:58" (1/3) ... [2021-10-11 00:28:00,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff04057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:00, skipping insertion in model container [2021-10-11 00:28:00,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:59" (2/3) ... [2021-10-11 00:28:00,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff04057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:00, skipping insertion in model container [2021-10-11 00:28:00,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:00" (3/3) ... [2021-10-11 00:28:00,266 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2021-10-11 00:28:00,281 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:28:00,285 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:28:00,296 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:28:00,321 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:28:00,321 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:28:00,321 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:28:00,322 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:28:00,322 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:28:00,322 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:28:00,322 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:28:00,322 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:28:00,339 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2021-10-11 00:28:00,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:28:00,346 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:00,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:00,347 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:00,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:00,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1844308238, now seen corresponding path program 1 times [2021-10-11 00:28:00,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:00,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156437650] [2021-10-11 00:28:00,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:00,589 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 00:28:00,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156437650] [2021-10-11 00:28:00,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:00,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:28:00,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139045187] [2021-10-11 00:28:00,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:28:00,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:00,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:28:00,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:28:00,613 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2021-10-11 00:28:00,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:00,643 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2021-10-11 00:28:00,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:28:00,645 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 00:28:00,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:00,656 INFO L225 Difference]: With dead ends: 232 [2021-10-11 00:28:00,656 INFO L226 Difference]: Without dead ends: 115 [2021-10-11 00:28:00,659 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 00:28:00,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-11 00:28:00,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-11 00:28:00,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2021-10-11 00:28:00,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2021-10-11 00:28:00,700 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2021-10-11 00:28:00,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:00,701 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2021-10-11 00:28:00,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:28:00,701 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2021-10-11 00:28:00,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:28:00,702 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:00,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:00,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:28:00,703 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:00,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:00,704 INFO L82 PathProgramCache]: Analyzing trace with hash -323074868, now seen corresponding path program 1 times [2021-10-11 00:28:00,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:00,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656924401] [2021-10-11 00:28:00,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:00,836 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 00:28:00,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656924401] [2021-10-11 00:28:00,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:00,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:28:00,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240322954] [2021-10-11 00:28:00,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:28:00,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:00,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:28:00,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:00,844 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2021-10-11 00:28:00,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:00,864 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2021-10-11 00:28:00,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:28:00,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 00:28:00,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:00,867 INFO L225 Difference]: With dead ends: 115 [2021-10-11 00:28:00,868 INFO L226 Difference]: Without dead ends: 49 [2021-10-11 00:28:00,869 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 00:28:00,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-11 00:28:00,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-11 00:28:00,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-10-11 00:28:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-11 00:28:00,878 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2021-10-11 00:28:00,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:00,878 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-11 00:28:00,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:28:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-11 00:28:00,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:28:00,879 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:00,879 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] [2021-10-11 00:28:00,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:28:00,880 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:00,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:00,881 INFO L82 PathProgramCache]: Analyzing trace with hash -426243093, now seen corresponding path program 1 times [2021-10-11 00:28:00,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:00,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522325206] [2021-10-11 00:28:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:01,070 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 00:28:01,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522325206] [2021-10-11 00:28:01,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:01,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:28:01,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539498306] [2021-10-11 00:28:01,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:28:01,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:01,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:28:01,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:01,086 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 3 states. [2021-10-11 00:28:01,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:01,120 INFO L93 Difference]: Finished difference Result 135 states and 201 transitions. [2021-10-11 00:28:01,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:28:01,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 00:28:01,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:01,122 INFO L225 Difference]: With dead ends: 135 [2021-10-11 00:28:01,124 INFO L226 Difference]: Without dead ends: 92 [2021-10-11 00:28:01,125 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 [2021-10-11 00:28:01,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-11 00:28:01,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2021-10-11 00:28:01,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2021-10-11 00:28:01,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 131 transitions. [2021-10-11 00:28:01,153 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 131 transitions. Word has length 22 [2021-10-11 00:28:01,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:01,154 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 131 transitions. [2021-10-11 00:28:01,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:28:01,154 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 131 transitions. [2021-10-11 00:28:01,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:28:01,157 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:01,157 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 00:28:01,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:28:01,158 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:01,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:01,159 INFO L82 PathProgramCache]: Analyzing trace with hash 844046893, now seen corresponding path program 1 times [2021-10-11 00:28:01,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:01,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38347099] [2021-10-11 00:28:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:01,219 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 00:28:01,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38347099] [2021-10-11 00:28:01,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:01,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:28:01,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035157871] [2021-10-11 00:28:01,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:28:01,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:01,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:28:01,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:01,222 INFO L87 Difference]: Start difference. First operand 88 states and 131 transitions. Second operand 3 states. [2021-10-11 00:28:01,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:01,273 INFO L93 Difference]: Finished difference Result 211 states and 318 transitions. [2021-10-11 00:28:01,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:28:01,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 00:28:01,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:01,275 INFO L225 Difference]: With dead ends: 211 [2021-10-11 00:28:01,278 INFO L226 Difference]: Without dead ends: 129 [2021-10-11 00:28:01,280 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 [2021-10-11 00:28:01,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-11 00:28:01,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2021-10-11 00:28:01,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2021-10-11 00:28:01,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 185 transitions. [2021-10-11 00:28:01,309 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 185 transitions. Word has length 24 [2021-10-11 00:28:01,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:01,309 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 185 transitions. [2021-10-11 00:28:01,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:28:01,309 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 185 transitions. [2021-10-11 00:28:01,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:28:01,310 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:01,311 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] [2021-10-11 00:28:01,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:28:01,311 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:01,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:01,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1604149312, now seen corresponding path program 1 times [2021-10-11 00:28:01,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:01,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985207438] [2021-10-11 00:28:01,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:01,385 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 00:28:01,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985207438] [2021-10-11 00:28:01,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:01,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:28:01,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014079104] [2021-10-11 00:28:01,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:01,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:01,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:01,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:01,387 INFO L87 Difference]: Start difference. First operand 127 states and 185 transitions. Second operand 5 states. [2021-10-11 00:28:01,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:01,498 INFO L93 Difference]: Finished difference Result 683 states and 1014 transitions. [2021-10-11 00:28:01,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:28:01,500 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 00:28:01,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:01,512 INFO L225 Difference]: With dead ends: 683 [2021-10-11 00:28:01,512 INFO L226 Difference]: Without dead ends: 562 [2021-10-11 00:28:01,513 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 [2021-10-11 00:28:01,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-10-11 00:28:01,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 238. [2021-10-11 00:28:01,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2021-10-11 00:28:01,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 343 transitions. [2021-10-11 00:28:01,540 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 343 transitions. Word has length 25 [2021-10-11 00:28:01,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:01,541 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 343 transitions. [2021-10-11 00:28:01,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:01,541 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 343 transitions. [2021-10-11 00:28:01,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 00:28:01,542 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:01,543 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 00:28:01,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:28:01,543 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:01,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:01,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1807956406, now seen corresponding path program 1 times [2021-10-11 00:28:01,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:01,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210938486] [2021-10-11 00:28:01,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:01,610 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 00:28:01,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210938486] [2021-10-11 00:28:01,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:01,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:28:01,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138489954] [2021-10-11 00:28:01,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:01,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:01,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:01,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:01,613 INFO L87 Difference]: Start difference. First operand 238 states and 343 transitions. Second operand 5 states. [2021-10-11 00:28:01,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:01,773 INFO L93 Difference]: Finished difference Result 684 states and 990 transitions. [2021-10-11 00:28:01,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:28:01,773 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-10-11 00:28:01,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:01,777 INFO L225 Difference]: With dead ends: 684 [2021-10-11 00:28:01,778 INFO L226 Difference]: Without dead ends: 682 [2021-10-11 00:28:01,778 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 [2021-10-11 00:28:01,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2021-10-11 00:28:01,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 238. [2021-10-11 00:28:01,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2021-10-11 00:28:01,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 341 transitions. [2021-10-11 00:28:01,815 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 341 transitions. Word has length 26 [2021-10-11 00:28:01,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:01,818 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 341 transitions. [2021-10-11 00:28:01,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:01,819 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 341 transitions. [2021-10-11 00:28:01,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:28:01,825 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:01,825 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] [2021-10-11 00:28:01,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:28:01,826 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:01,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:01,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1131451540, now seen corresponding path program 1 times [2021-10-11 00:28:01,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:01,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642839431] [2021-10-11 00:28:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:01,905 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 00:28:01,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642839431] [2021-10-11 00:28:01,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:01,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:28:01,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230162635] [2021-10-11 00:28:01,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:01,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:01,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:01,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:01,907 INFO L87 Difference]: Start difference. First operand 238 states and 341 transitions. Second operand 5 states. [2021-10-11 00:28:01,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:01,988 INFO L93 Difference]: Finished difference Result 650 states and 916 transitions. [2021-10-11 00:28:01,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:28:01,988 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2021-10-11 00:28:01,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:01,991 INFO L225 Difference]: With dead ends: 650 [2021-10-11 00:28:01,991 INFO L226 Difference]: Without dead ends: 418 [2021-10-11 00:28:01,992 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 [2021-10-11 00:28:01,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-10-11 00:28:02,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 262. [2021-10-11 00:28:02,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-10-11 00:28:02,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 365 transitions. [2021-10-11 00:28:02,013 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 365 transitions. Word has length 31 [2021-10-11 00:28:02,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:02,013 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 365 transitions. [2021-10-11 00:28:02,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:02,013 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 365 transitions. [2021-10-11 00:28:02,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:28:02,014 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:02,014 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] [2021-10-11 00:28:02,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:28:02,015 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:02,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:02,015 INFO L82 PathProgramCache]: Analyzing trace with hash 738424530, now seen corresponding path program 1 times [2021-10-11 00:28:02,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:02,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970854381] [2021-10-11 00:28:02,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:02,124 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 00:28:02,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970854381] [2021-10-11 00:28:02,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:02,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:28:02,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54506686] [2021-10-11 00:28:02,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:02,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:02,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:02,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:02,126 INFO L87 Difference]: Start difference. First operand 262 states and 365 transitions. Second operand 5 states. [2021-10-11 00:28:02,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:02,236 INFO L93 Difference]: Finished difference Result 734 states and 1001 transitions. [2021-10-11 00:28:02,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:28:02,236 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2021-10-11 00:28:02,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:02,240 INFO L225 Difference]: With dead ends: 734 [2021-10-11 00:28:02,240 INFO L226 Difference]: Without dead ends: 478 [2021-10-11 00:28:02,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:28:02,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2021-10-11 00:28:02,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 278. [2021-10-11 00:28:02,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2021-10-11 00:28:02,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 381 transitions. [2021-10-11 00:28:02,276 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 381 transitions. Word has length 31 [2021-10-11 00:28:02,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:02,276 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 381 transitions. [2021-10-11 00:28:02,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:02,276 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 381 transitions. [2021-10-11 00:28:02,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:28:02,277 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:02,277 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] [2021-10-11 00:28:02,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:28:02,277 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:02,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:02,278 INFO L82 PathProgramCache]: Analyzing trace with hash 996589968, now seen corresponding path program 1 times [2021-10-11 00:28:02,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:02,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214862600] [2021-10-11 00:28:02,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:02,343 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 00:28:02,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214862600] [2021-10-11 00:28:02,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:02,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:28:02,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048256192] [2021-10-11 00:28:02,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:28:02,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:02,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:28:02,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:02,349 INFO L87 Difference]: Start difference. First operand 278 states and 381 transitions. Second operand 3 states. [2021-10-11 00:28:02,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:02,406 INFO L93 Difference]: Finished difference Result 654 states and 890 transitions. [2021-10-11 00:28:02,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:28:02,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2021-10-11 00:28:02,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:02,409 INFO L225 Difference]: With dead ends: 654 [2021-10-11 00:28:02,409 INFO L226 Difference]: Without dead ends: 382 [2021-10-11 00:28:02,410 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 [2021-10-11 00:28:02,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-10-11 00:28:02,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2021-10-11 00:28:02,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2021-10-11 00:28:02,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 507 transitions. [2021-10-11 00:28:02,442 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 507 transitions. Word has length 31 [2021-10-11 00:28:02,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:02,443 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 507 transitions. [2021-10-11 00:28:02,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:28:02,443 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 507 transitions. [2021-10-11 00:28:02,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 00:28:02,446 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:02,446 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] [2021-10-11 00:28:02,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:28:02,446 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:02,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:02,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1116169902, now seen corresponding path program 1 times [2021-10-11 00:28:02,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:02,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062717371] [2021-10-11 00:28:02,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:02,549 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:02,614 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:02,674 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:28:02,674 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:28:02,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:28:02,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:28:02 BoogieIcfgContainer [2021-10-11 00:28:02,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:28:02,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:28:02,804 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:28:02,805 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:28:02,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:00" (3/4) ... [2021-10-11 00:28:02,807 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:28:02,930 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6de25588-274b-419b-8ee1-7abeff9e9c2f/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:28:02,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:28:02,932 INFO L168 Benchmark]: Toolchain (without parser) took 4454.09 ms. Allocated memory was 86.0 MB in the beginning and 130.0 MB in the end (delta: 44.0 MB). Free memory was 49.9 MB in the beginning and 94.4 MB in the end (delta: -44.5 MB). Peak memory consumption was 61.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:02,932 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 86.0 MB. Free memory was 67.7 MB in the beginning and 67.7 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:02,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.39 ms. Allocated memory is still 86.0 MB. Free memory was 49.7 MB in the beginning and 53.2 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:02,934 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.27 ms. Allocated memory is still 86.0 MB. Free memory was 53.0 MB in the beginning and 49.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:02,934 INFO L168 Benchmark]: Boogie Preprocessor took 47.35 ms. Allocated memory is still 86.0 MB. Free memory was 49.4 MB in the beginning and 46.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:02,934 INFO L168 Benchmark]: RCFGBuilder took 1004.21 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 46.6 MB in the beginning and 78.2 MB in the end (delta: -31.5 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:02,935 INFO L168 Benchmark]: TraceAbstraction took 2543.85 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 77.5 MB in the beginning and 35.8 MB in the end (delta: 41.7 MB). Peak memory consumption was 65.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:02,935 INFO L168 Benchmark]: Witness Printer took 126.13 ms. Allocated memory is still 130.0 MB. Free memory was 35.8 MB in the beginning and 94.4 MB in the end (delta: -58.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:02,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 86.0 MB. Free memory was 67.7 MB in the beginning and 67.7 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 651.39 ms. Allocated memory is still 86.0 MB. Free memory was 49.7 MB in the beginning and 53.2 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.27 ms. Allocated memory is still 86.0 MB. Free memory was 53.0 MB in the beginning and 49.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.35 ms. Allocated memory is still 86.0 MB. Free memory was 49.4 MB in the beginning and 46.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1004.21 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 46.6 MB in the beginning and 78.2 MB in the end (delta: -31.5 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2543.85 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 77.5 MB in the beginning and 35.8 MB in the end (delta: 41.7 MB). Peak memory consumption was 65.7 MB. Max. memory is 16.1 GB. * Witness Printer took 126.13 ms. Allocated memory is still 130.0 MB. Free memory was 35.8 MB in the beginning and 94.4 MB in the end (delta: -58.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 706]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L505] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L775] int cleanupTimeShifts = 4; [L872] int waterLevel = 1; [L873] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L848] int retValue_acc ; [L849] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L740] int retValue_acc ; [L743] retValue_acc = 1 [L744] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L855] tmp = valid_product() [L857] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L890] COND TRUE waterLevel < 2 [L891] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L902] COND FALSE !(\read(methaneLevelCritical)) [L905] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L131] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L189] COND FALSE !(\read(pumpRunning)) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L163] COND TRUE ! pumpRunning [L283] int retValue_acc ; [L284] int tmp ; [L285] int tmp___0 ; [L952] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L955] COND FALSE !(waterLevel < 2) [L959] retValue_acc = 0 [L960] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L289] tmp = isHighWaterSensorDry() [L291] COND FALSE !(\read(tmp)) [L294] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L296] retValue_acc = tmp___0 [L297] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L165] tmp = isHighWaterLevel() [L167] COND TRUE \read(tmp) [L214] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L750] int tmp ; [L751] int tmp___0 ; [L911] int retValue_acc ; [L914] retValue_acc = methaneLevelCritical [L915] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L755] tmp = isMethaneLevelCritical() [L757] COND TRUE \read(tmp) [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L759] tmp___0 = isPumpRunning() [L761] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L706] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 875 SDtfs, 1188 SDslu, 1284 SDs, 0 SdLazy, 160 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1130 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 11496 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...