./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.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_43797294-a10f-4cfd-811d-f11d62fd41ac/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/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_43797294-a10f-4cfd-811d-f11d62fd41ac/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/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_43797294-a10f-4cfd-811d-f11d62fd41ac/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 29fd7ebbcc9514a740018fa1c2ef695c1d81ea72 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 00:30:47,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:30:47,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:30:47,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:30:47,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:30:47,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:30:47,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:30:47,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:30:47,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:30:47,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:30:47,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:30:47,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:30:47,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:30:47,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:30:47,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:30:47,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:30:47,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:30:47,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:30:47,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:30:47,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:30:47,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:30:47,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:30:47,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:30:47,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:30:47,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:30:47,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:30:47,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:30:47,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:30:47,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:30:47,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:30:47,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:30:47,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:30:47,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:30:47,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:30:47,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:30:47,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:30:47,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:30:47,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:30:47,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:30:47,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:30:47,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:30:47,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:30:47,427 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:30:47,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:30:47,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:30:47,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:30:47,429 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:30:47,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:30:47,430 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:30:47,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:30:47,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:30:47,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:30:47,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:30:47,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:30:47,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:30:47,432 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:30:47,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:30:47,433 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:30:47,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:30:47,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:30:47,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:30:47,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:30:47,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:30:47,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:30:47,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:30:47,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:30:47,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:30:47,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:30:47,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:30:47,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:30:47,437 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_43797294-a10f-4cfd-811d-f11d62fd41ac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29fd7ebbcc9514a740018fa1c2ef695c1d81ea72 [2021-10-11 00:30:47,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:30:47,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:30:47,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:30:47,760 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:30:47,763 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:30:47,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2021-10-11 00:30:47,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/bin/uautomizer-Z5i5R5N3CC/data/78dab19da/91154e2f4a9d452fa50ba9a7d9760cef/FLAG551cab216 [2021-10-11 00:30:48,417 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:30:48,418 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2021-10-11 00:30:48,432 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/bin/uautomizer-Z5i5R5N3CC/data/78dab19da/91154e2f4a9d452fa50ba9a7d9760cef/FLAG551cab216 [2021-10-11 00:30:48,724 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/bin/uautomizer-Z5i5R5N3CC/data/78dab19da/91154e2f4a9d452fa50ba9a7d9760cef [2021-10-11 00:30:48,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:30:48,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:30:48,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:48,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:30:48,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:30:48,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:48" (1/1) ... [2021-10-11 00:30:48,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c95bc7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:48, skipping insertion in model container [2021-10-11 00:30:48,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:48" (1/1) ... [2021-10-11 00:30:48,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:30:48,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:30:49,128 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_43797294-a10f-4cfd-811d-f11d62fd41ac/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c[15482,15495] [2021-10-11 00:30:49,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:49,168 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:30:49,258 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_43797294-a10f-4cfd-811d-f11d62fd41ac/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c[15482,15495] [2021-10-11 00:30:49,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:49,323 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:30:49,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:49 WrapperNode [2021-10-11 00:30:49,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:49,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:49,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:30:49,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:30:49,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:49" (1/1) ... [2021-10-11 00:30:49,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:49" (1/1) ... [2021-10-11 00:30:49,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:49,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:30:49,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:30:49,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:30:49,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:49" (1/1) ... [2021-10-11 00:30:49,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:49" (1/1) ... [2021-10-11 00:30:49,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:49" (1/1) ... [2021-10-11 00:30:49,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:49" (1/1) ... [2021-10-11 00:30:49,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:49" (1/1) ... [2021-10-11 00:30:49,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:49" (1/1) ... [2021-10-11 00:30:49,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:49" (1/1) ... [2021-10-11 00:30:49,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:30:49,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:30:49,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:30:49,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:30:49,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:49" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/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 00:30:49,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:30:49,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:30:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:30:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:30:50,825 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:30:50,836 INFO L299 CfgBuilder]: Removed 120 assume(true) statements. [2021-10-11 00:30:50,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:50 BoogieIcfgContainer [2021-10-11 00:30:50,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:30:50,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:30:50,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:30:50,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:30:50,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:30:48" (1/3) ... [2021-10-11 00:30:50,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a274a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:50, skipping insertion in model container [2021-10-11 00:30:50,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:49" (2/3) ... [2021-10-11 00:30:50,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a274a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:50, skipping insertion in model container [2021-10-11 00:30:50,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:50" (3/3) ... [2021-10-11 00:30:50,849 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product44.cil.c [2021-10-11 00:30:50,864 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:30:50,867 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:30:50,878 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:30:50,900 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:30:50,900 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:30:50,901 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:30:50,901 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:30:50,901 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:30:50,901 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:30:50,901 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:30:50,901 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:30:50,917 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2021-10-11 00:30:50,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:30:50,923 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:50,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:50,924 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:50,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:50,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1782116946, now seen corresponding path program 1 times [2021-10-11 00:30:50,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:50,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512746180] [2021-10-11 00:30:50,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:51,240 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 00:30:51,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512746180] [2021-10-11 00:30:51,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:51,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:30:51,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12878114] [2021-10-11 00:30:51,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:30:51,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:51,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:30:51,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:30:51,272 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2021-10-11 00:30:51,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:51,326 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2021-10-11 00:30:51,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:30:51,328 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 00:30:51,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:51,358 INFO L225 Difference]: With dead ends: 172 [2021-10-11 00:30:51,359 INFO L226 Difference]: Without dead ends: 85 [2021-10-11 00:30:51,362 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 00:30:51,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-10-11 00:30:51,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-10-11 00:30:51,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2021-10-11 00:30:51,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2021-10-11 00:30:51,444 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2021-10-11 00:30:51,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:51,444 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2021-10-11 00:30:51,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:30:51,445 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2021-10-11 00:30:51,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:30:51,447 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:51,447 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 00:30:51,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:30:51,448 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:51,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:51,451 INFO L82 PathProgramCache]: Analyzing trace with hash 735360049, now seen corresponding path program 1 times [2021-10-11 00:30:51,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:51,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030777532] [2021-10-11 00:30:51,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:51,667 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 00:30:51,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030777532] [2021-10-11 00:30:51,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:51,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:30:51,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770321176] [2021-10-11 00:30:51,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:30:51,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:51,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:30:51,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:51,671 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2021-10-11 00:30:51,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:51,681 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2021-10-11 00:30:51,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:30:51,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 00:30:51,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:51,683 INFO L225 Difference]: With dead ends: 85 [2021-10-11 00:30:51,683 INFO L226 Difference]: Without dead ends: 39 [2021-10-11 00:30:51,684 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 00:30:51,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-11 00:30:51,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-11 00:30:51,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-10-11 00:30:51,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2021-10-11 00:30:51,690 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2021-10-11 00:30:51,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:51,690 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2021-10-11 00:30:51,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:30:51,691 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2021-10-11 00:30:51,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:30:51,692 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:51,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:51,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:30:51,692 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:51,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:51,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1297648259, now seen corresponding path program 1 times [2021-10-11 00:30:51,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:51,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724749028] [2021-10-11 00:30:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:51,777 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 00:30:51,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724749028] [2021-10-11 00:30:51,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:51,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:30:51,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593093458] [2021-10-11 00:30:51,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:30:51,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:51,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:30:51,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:51,780 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 5 states. [2021-10-11 00:30:51,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:51,882 INFO L93 Difference]: Finished difference Result 95 states and 138 transitions. [2021-10-11 00:30:51,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:30:51,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2021-10-11 00:30:51,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:51,886 INFO L225 Difference]: With dead ends: 95 [2021-10-11 00:30:51,888 INFO L226 Difference]: Without dead ends: 62 [2021-10-11 00:30:51,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:30:51,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-11 00:30:51,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2021-10-11 00:30:51,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-10-11 00:30:51,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2021-10-11 00:30:51,910 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 22 [2021-10-11 00:30:51,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:51,911 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2021-10-11 00:30:51,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:30:51,911 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2021-10-11 00:30:51,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 00:30:51,912 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:51,912 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] [2021-10-11 00:30:51,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:30:51,912 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:51,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:51,913 INFO L82 PathProgramCache]: Analyzing trace with hash -372126526, now seen corresponding path program 1 times [2021-10-11 00:30:51,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:51,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909403506] [2021-10-11 00:30:51,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:52,006 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 00:30:52,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909403506] [2021-10-11 00:30:52,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:52,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:30:52,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573269595] [2021-10-11 00:30:52,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:30:52,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:52,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:30:52,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:52,008 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 3 states. [2021-10-11 00:30:52,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:52,038 INFO L93 Difference]: Finished difference Result 131 states and 192 transitions. [2021-10-11 00:30:52,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:30:52,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-10-11 00:30:52,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:52,040 INFO L225 Difference]: With dead ends: 131 [2021-10-11 00:30:52,040 INFO L226 Difference]: Without dead ends: 79 [2021-10-11 00:30:52,041 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 00:30:52,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-10-11 00:30:52,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2021-10-11 00:30:52,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2021-10-11 00:30:52,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 109 transitions. [2021-10-11 00:30:52,051 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 109 transitions. Word has length 23 [2021-10-11 00:30:52,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:52,052 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 109 transitions. [2021-10-11 00:30:52,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:30:52,052 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 109 transitions. [2021-10-11 00:30:52,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:30:52,053 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:52,053 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 00:30:52,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:30:52,054 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:52,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:52,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1852423790, now seen corresponding path program 1 times [2021-10-11 00:30:52,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:52,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518436102] [2021-10-11 00:30:52,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:52,194 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 00:30:52,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518436102] [2021-10-11 00:30:52,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:52,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 00:30:52,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915835642] [2021-10-11 00:30:52,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 00:30:52,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:52,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 00:30:52,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:30:52,197 INFO L87 Difference]: Start difference. First operand 77 states and 109 transitions. Second operand 8 states. [2021-10-11 00:30:52,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:52,629 INFO L93 Difference]: Finished difference Result 485 states and 709 transitions. [2021-10-11 00:30:52,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 00:30:52,630 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2021-10-11 00:30:52,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:52,634 INFO L225 Difference]: With dead ends: 485 [2021-10-11 00:30:52,634 INFO L226 Difference]: Without dead ends: 414 [2021-10-11 00:30:52,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-10-11 00:30:52,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-10-11 00:30:52,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 198. [2021-10-11 00:30:52,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-10-11 00:30:52,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 275 transitions. [2021-10-11 00:30:52,666 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 275 transitions. Word has length 25 [2021-10-11 00:30:52,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:52,667 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 275 transitions. [2021-10-11 00:30:52,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 00:30:52,667 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 275 transitions. [2021-10-11 00:30:52,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-11 00:30:52,670 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:52,670 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:52,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:30:52,670 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:52,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:52,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1174218714, now seen corresponding path program 1 times [2021-10-11 00:30:52,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:52,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144886021] [2021-10-11 00:30:52,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:52,766 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:52,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144886021] [2021-10-11 00:30:52,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953258435] [2021-10-11 00:30:52,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:30:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:52,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:30:52,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:30:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:53,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:30:53,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-11 00:30:53,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484589316] [2021-10-11 00:30:53,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:30:53,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:53,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:30:53,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:53,088 INFO L87 Difference]: Start difference. First operand 198 states and 275 transitions. Second operand 4 states. [2021-10-11 00:30:53,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:53,219 INFO L93 Difference]: Finished difference Result 441 states and 627 transitions. [2021-10-11 00:30:53,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:30:53,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2021-10-11 00:30:53,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:53,225 INFO L225 Difference]: With dead ends: 441 [2021-10-11 00:30:53,226 INFO L226 Difference]: Without dead ends: 310 [2021-10-11 00:30:53,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:53,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-10-11 00:30:53,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 299. [2021-10-11 00:30:53,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-10-11 00:30:53,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 422 transitions. [2021-10-11 00:30:53,280 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 422 transitions. Word has length 41 [2021-10-11 00:30:53,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:53,281 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 422 transitions. [2021-10-11 00:30:53,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:30:53,281 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 422 transitions. [2021-10-11 00:30:53,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-11 00:30:53,290 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:53,291 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:53,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-11 00:30:53,506 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:53,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:53,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1538071243, now seen corresponding path program 1 times [2021-10-11 00:30:53,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:53,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684631693] [2021-10-11 00:30:53,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:30:53,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684631693] [2021-10-11 00:30:53,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:53,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:30:53,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737422366] [2021-10-11 00:30:53,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:30:53,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:53,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:30:53,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:53,609 INFO L87 Difference]: Start difference. First operand 299 states and 422 transitions. Second operand 5 states. [2021-10-11 00:30:53,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:53,696 INFO L93 Difference]: Finished difference Result 950 states and 1334 transitions. [2021-10-11 00:30:53,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:30:53,697 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2021-10-11 00:30:53,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:53,701 INFO L225 Difference]: With dead ends: 950 [2021-10-11 00:30:53,701 INFO L226 Difference]: Without dead ends: 657 [2021-10-11 00:30:53,702 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 00:30:53,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2021-10-11 00:30:53,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 311. [2021-10-11 00:30:53,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2021-10-11 00:30:53,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 434 transitions. [2021-10-11 00:30:53,737 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 434 transitions. Word has length 47 [2021-10-11 00:30:53,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:53,737 INFO L481 AbstractCegarLoop]: Abstraction has 311 states and 434 transitions. [2021-10-11 00:30:53,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:30:53,738 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 434 transitions. [2021-10-11 00:30:53,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-11 00:30:53,739 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:53,739 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:53,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:30:53,739 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:53,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:53,740 INFO L82 PathProgramCache]: Analyzing trace with hash -2047544333, now seen corresponding path program 1 times [2021-10-11 00:30:53,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:53,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104119234] [2021-10-11 00:30:53,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:30:53,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104119234] [2021-10-11 00:30:53,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:53,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:30:53,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194132273] [2021-10-11 00:30:53,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:30:53,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:53,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:30:53,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:30:53,792 INFO L87 Difference]: Start difference. First operand 311 states and 434 transitions. Second operand 4 states. [2021-10-11 00:30:53,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:53,852 INFO L93 Difference]: Finished difference Result 708 states and 987 transitions. [2021-10-11 00:30:53,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:30:53,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2021-10-11 00:30:53,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:53,855 INFO L225 Difference]: With dead ends: 708 [2021-10-11 00:30:53,855 INFO L226 Difference]: Without dead ends: 403 [2021-10-11 00:30:53,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:53,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-10-11 00:30:53,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 277. [2021-10-11 00:30:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2021-10-11 00:30:53,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 384 transitions. [2021-10-11 00:30:53,886 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 384 transitions. Word has length 47 [2021-10-11 00:30:53,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:53,886 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 384 transitions. [2021-10-11 00:30:53,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:30:53,887 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 384 transitions. [2021-10-11 00:30:53,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-11 00:30:53,887 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:53,887 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:53,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:30:53,888 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:53,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:53,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1853071629, now seen corresponding path program 1 times [2021-10-11 00:30:53,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:53,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760907931] [2021-10-11 00:30:53,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:53,972 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:53,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760907931] [2021-10-11 00:30:53,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100449295] [2021-10-11 00:30:53,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:30:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:54,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 00:30:54,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:30:54,267 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:54,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:30:54,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-10-11 00:30:54,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69747561] [2021-10-11 00:30:54,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 00:30:54,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:54,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 00:30:54,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:30:54,271 INFO L87 Difference]: Start difference. First operand 277 states and 384 transitions. Second operand 8 states. [2021-10-11 00:30:54,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:54,573 INFO L93 Difference]: Finished difference Result 695 states and 966 transitions. [2021-10-11 00:30:54,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-11 00:30:54,574 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2021-10-11 00:30:54,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:54,578 INFO L225 Difference]: With dead ends: 695 [2021-10-11 00:30:54,578 INFO L226 Difference]: Without dead ends: 465 [2021-10-11 00:30:54,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-11 00:30:54,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2021-10-11 00:30:54,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 239. [2021-10-11 00:30:54,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2021-10-11 00:30:54,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 323 transitions. [2021-10-11 00:30:54,616 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 323 transitions. Word has length 48 [2021-10-11 00:30:54,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:54,618 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 323 transitions. [2021-10-11 00:30:54,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 00:30:54,618 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 323 transitions. [2021-10-11 00:30:54,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-11 00:30:54,620 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:54,620 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:30:54,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:30:54,834 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:54,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:54,834 INFO L82 PathProgramCache]: Analyzing trace with hash 82160865, now seen corresponding path program 2 times [2021-10-11 00:30:54,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:54,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11731705] [2021-10-11 00:30:54,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:54,927 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:54,998 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:55,076 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:55,076 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:30:55,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:30:55,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:30:55 BoogieIcfgContainer [2021-10-11 00:30:55,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:30:55,241 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:30:55,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:30:55,242 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:30:55,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:50" (3/4) ... [2021-10-11 00:30:55,245 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:30:55,417 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43797294-a10f-4cfd-811d-f11d62fd41ac/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:30:55,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:30:55,419 INFO L168 Benchmark]: Toolchain (without parser) took 6689.62 ms. Allocated memory was 130.0 MB in the beginning and 188.7 MB in the end (delta: 58.7 MB). Free memory was 100.4 MB in the beginning and 118.6 MB in the end (delta: -18.2 MB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,419 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 130.0 MB. Free memory was 87.4 MB in the beginning and 87.4 MB in the end (delta: 63.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:55,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.36 ms. Allocated memory is still 130.0 MB. Free memory was 100.4 MB in the beginning and 92.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.03 ms. Allocated memory is still 130.0 MB. Free memory was 92.2 MB in the beginning and 88.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,421 INFO L168 Benchmark]: Boogie Preprocessor took 50.02 ms. Allocated memory is still 130.0 MB. Free memory was 88.6 MB in the beginning and 86.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,422 INFO L168 Benchmark]: RCFGBuilder took 1332.94 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 86.5 MB in the beginning and 97.1 MB in the end (delta: -10.5 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,423 INFO L168 Benchmark]: TraceAbstraction took 4399.46 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 97.1 MB in the beginning and 143.7 MB in the end (delta: -46.7 MB). Peak memory consumption was 77.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,423 INFO L168 Benchmark]: Witness Printer took 175.82 ms. Allocated memory is still 188.7 MB. Free memory was 143.7 MB in the beginning and 118.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:55,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 130.0 MB. Free memory was 87.4 MB in the beginning and 87.4 MB in the end (delta: 63.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 594.36 ms. Allocated memory is still 130.0 MB. Free memory was 100.4 MB in the beginning and 92.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 130.03 ms. Allocated memory is still 130.0 MB. Free memory was 92.2 MB in the beginning and 88.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.02 ms. Allocated memory is still 130.0 MB. Free memory was 88.6 MB in the beginning and 86.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1332.94 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 86.5 MB in the beginning and 97.1 MB in the end (delta: -10.5 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4399.46 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 97.1 MB in the beginning and 143.7 MB in the end (delta: -46.7 MB). Peak memory consumption was 77.0 MB. Max. memory is 16.1 GB. * Witness Printer took 175.82 ms. Allocated memory is still 188.7 MB. Free memory was 143.7 MB in the beginning and 118.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 754]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L240] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L557] int pumpRunning = 0; [L558] int systemActive = 1; [L759] int cleanupTimeShifts = 4; [L855] int waterLevel = 1; [L856] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] int retValue_acc ; [L833] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L466] int retValue_acc ; [L469] retValue_acc = 1 [L470] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] tmp = valid_product() [L841] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L482] int splverifierCounter ; [L483] int tmp ; [L484] int tmp___0 ; [L485] int tmp___1 ; [L486] int tmp___2 ; [L489] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L491] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L493] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L499] tmp = __VERIFIER_nondet_int() [L501] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L873] COND TRUE waterLevel < 2 [L874] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L509] tmp___0 = __VERIFIER_nondet_int() [L511] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L519] tmp___2 = __VERIFIER_nondet_int() [L521] COND TRUE \read(tmp___2) [L745] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L571] COND TRUE \read(systemActive) [L593] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] COND TRUE ! pumpRunning [L708] int retValue_acc ; [L709] int tmp ; [L710] int tmp___0 ; [L935] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L938] COND FALSE !(waterLevel < 2) [L942] retValue_acc = 0 [L943] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L714] tmp = isHighWaterSensorDry() [L716] COND FALSE !(\read(tmp)) [L719] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L721] retValue_acc = tmp___0 [L722] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] tmp = isHighWaterLevel() [L600] COND TRUE \read(tmp) [L627] int tmp ; [L652] int retValue_acc ; [L894] int retValue_acc ; [L897] retValue_acc = methaneLevelCritical [L898] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] retValue_acc = isMethaneLevelCritical() [L658] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L631] tmp = isMethaneAlarm() [L633] COND FALSE !(\read(tmp)) [L621] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; [L47] int tmp___0 ; [L926] int retValue_acc ; [L929] retValue_acc = waterLevel [L930] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L491] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L493] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L499] tmp = __VERIFIER_nondet_int() [L501] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L509] tmp___0 = __VERIFIER_nondet_int() [L511] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L519] tmp___2 = __VERIFIER_nondet_int() [L521] COND TRUE \read(tmp___2) [L745] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L564] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L861] COND TRUE waterLevel > 0 [L862] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L571] COND TRUE \read(systemActive) [L593] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L46] int tmp ; [L47] int tmp___0 ; [L926] int retValue_acc ; [L929] retValue_acc = waterLevel [L930] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L491] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L493] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L499] tmp = __VERIFIER_nondet_int() [L501] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L509] tmp___0 = __VERIFIER_nondet_int() [L511] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L519] tmp___2 = __VERIFIER_nondet_int() [L521] COND TRUE \read(tmp___2) [L745] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L861] COND TRUE waterLevel > 0 [L862] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L571] COND TRUE \read(systemActive) [L593] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L596] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L46] int tmp ; [L47] int tmp___0 ; [L926] int retValue_acc ; [L929] retValue_acc = waterLevel [L930] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L51] tmp = getWaterLevel() [L53] COND TRUE tmp == 0 [L663] int retValue_acc ; [L666] retValue_acc = pumpRunning [L667] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L754] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 748 SDtfs, 1331 SDslu, 1249 SDs, 0 SdLazy, 198 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 931 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 364 ConstructedInterpolants, 0 QuantifiedInterpolants, 25988 SizeOfPredicates, 3 NumberOfNonLiveVariables, 806 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 75/86 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...