./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.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_2e1b3270-9349-4602-8acb-76c1080c8460/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1b3270-9349-4602-8acb-76c1080c8460/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_2e1b3270-9349-4602-8acb-76c1080c8460/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1b3270-9349-4602-8acb-76c1080c8460/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1b3270-9349-4602-8acb-76c1080c8460/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_2e1b3270-9349-4602-8acb-76c1080c8460/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 2a503d744e1f87de1c9c505a18eb69768c300bcf ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:21:57,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:21:57,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:21:57,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:21:57,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:21:57,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:21:57,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:21:57,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:21:57,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:21:57,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:21:57,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:21:57,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:21:57,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:21:57,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:21:57,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:21:57,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:21:57,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:21:57,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:21:57,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:21:57,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:21:57,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:21:57,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:21:57,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:21:57,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:21:57,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:21:57,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:21:57,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:21:57,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:21:57,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:21:57,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:21:57,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:21:57,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:21:57,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:21:57,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:21:57,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:21:57,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:21:57,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:21:57,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:21:57,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:21:57,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:21:57,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:21:57,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1b3270-9349-4602-8acb-76c1080c8460/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:21:57,724 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:21:57,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:21:57,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:21:57,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:21:57,727 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:21:57,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:21:57,728 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:21:57,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:21:57,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:21:57,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:21:57,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:21:57,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:21:57,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:21:57,731 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:21:57,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:21:57,731 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:21:57,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:21:57,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:21:57,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:21:57,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:21:57,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:21:57,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:21:57,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:21:57,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:21:57,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:21:57,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:21:57,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:21:57,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:21:57,737 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_2e1b3270-9349-4602-8acb-76c1080c8460/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1b3270-9349-4602-8acb-76c1080c8460/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a503d744e1f87de1c9c505a18eb69768c300bcf [2021-10-11 00:21:57,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:21:57,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:21:58,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:21:58,003 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:21:58,004 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:21:58,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1b3270-9349-4602-8acb-76c1080c8460/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-11 00:21:58,074 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1b3270-9349-4602-8acb-76c1080c8460/bin/uautomizer-Z5i5R5N3CC/data/d95e4ea2e/ad201ae4d3da42ce83a9ec37bfa2b1a6/FLAG928b560d5 [2021-10-11 00:21:58,634 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:21:58,635 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1b3270-9349-4602-8acb-76c1080c8460/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-11 00:21:58,662 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1b3270-9349-4602-8acb-76c1080c8460/bin/uautomizer-Z5i5R5N3CC/data/d95e4ea2e/ad201ae4d3da42ce83a9ec37bfa2b1a6/FLAG928b560d5 [2021-10-11 00:21:58,918 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1b3270-9349-4602-8acb-76c1080c8460/bin/uautomizer-Z5i5R5N3CC/data/d95e4ea2e/ad201ae4d3da42ce83a9ec37bfa2b1a6 [2021-10-11 00:21:58,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:21:58,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:21:58,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:58,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:21:58,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:21:58,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:58" (1/1) ... [2021-10-11 00:21:58,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d89201b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:58, skipping insertion in model container [2021-10-11 00:21:58,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:58" (1/1) ... [2021-10-11 00:21:58,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:21:59,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:21:59,264 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_2e1b3270-9349-4602-8acb-76c1080c8460/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[7938,7951] [2021-10-11 00:21:59,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:59,324 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:21:59,363 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_2e1b3270-9349-4602-8acb-76c1080c8460/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[7938,7951] [2021-10-11 00:21:59,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:59,454 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:21:59,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:59 WrapperNode [2021-10-11 00:21:59,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:59,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:59,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:21:59,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:21:59,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:59" (1/1) ... [2021-10-11 00:21:59,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:59" (1/1) ... [2021-10-11 00:21:59,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:59,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:21:59,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:21:59,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:21:59,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:59" (1/1) ... [2021-10-11 00:21:59,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:59" (1/1) ... [2021-10-11 00:21:59,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:59" (1/1) ... [2021-10-11 00:21:59,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:59" (1/1) ... [2021-10-11 00:21:59,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:59" (1/1) ... [2021-10-11 00:21:59,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:59" (1/1) ... [2021-10-11 00:21:59,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:59" (1/1) ... [2021-10-11 00:21:59,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:21:59,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:21:59,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:21:59,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:21:59,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:59" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1b3270-9349-4602-8acb-76c1080c8460/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:21:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:21:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:21:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:21:59,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:22:00,523 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:22:00,523 INFO L299 CfgBuilder]: Removed 106 assume(true) statements. [2021-10-11 00:22:00,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:00 BoogieIcfgContainer [2021-10-11 00:22:00,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:22:00,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:22:00,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:22:00,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:22:00,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:21:58" (1/3) ... [2021-10-11 00:22:00,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382fbad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:22:00, skipping insertion in model container [2021-10-11 00:22:00,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:59" (2/3) ... [2021-10-11 00:22:00,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382fbad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:22:00, skipping insertion in model container [2021-10-11 00:22:00,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:00" (3/3) ... [2021-10-11 00:22:00,533 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2021-10-11 00:22:00,556 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:22:00,560 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:22:00,572 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:22:00,599 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:22:00,599 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:22:00,599 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:22:00,599 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:22:00,600 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:22:00,600 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:22:00,600 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:22:00,600 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:22:00,615 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2021-10-11 00:22:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:22:00,631 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:00,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:22:00,632 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:22:00,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:00,639 INFO L82 PathProgramCache]: Analyzing trace with hash 625606487, now seen corresponding path program 1 times [2021-10-11 00:22:00,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:00,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893002327] [2021-10-11 00:22:00,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:00,868 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 00:22:00,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893002327] [2021-10-11 00:22:00,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:00,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:22:00,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623405479] [2021-10-11 00:22:00,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:22:00,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:00,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:22:00,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:22:00,895 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2021-10-11 00:22:00,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:00,938 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2021-10-11 00:22:00,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:22:00,939 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 00:22:00,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:00,955 INFO L225 Difference]: With dead ends: 166 [2021-10-11 00:22:00,958 INFO L226 Difference]: Without dead ends: 82 [2021-10-11 00:22:00,969 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 00:22:00,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-11 00:22:01,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-10-11 00:22:01,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2021-10-11 00:22:01,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2021-10-11 00:22:01,007 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2021-10-11 00:22:01,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:01,007 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2021-10-11 00:22:01,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:22:01,007 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2021-10-11 00:22:01,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:22:01,009 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:01,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:22:01,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:22:01,009 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:22:01,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:01,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1306218461, now seen corresponding path program 1 times [2021-10-11 00:22:01,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:01,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054208130] [2021-10-11 00:22:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:01,184 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 00:22:01,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054208130] [2021-10-11 00:22:01,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:01,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:22:01,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081021596] [2021-10-11 00:22:01,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:22:01,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:01,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:22:01,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:22:01,187 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand 3 states. [2021-10-11 00:22:01,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:01,206 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2021-10-11 00:22:01,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:22:01,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 00:22:01,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:01,210 INFO L225 Difference]: With dead ends: 82 [2021-10-11 00:22:01,210 INFO L226 Difference]: Without dead ends: 38 [2021-10-11 00:22:01,211 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 00:22:01,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-11 00:22:01,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-11 00:22:01,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-10-11 00:22:01,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2021-10-11 00:22:01,223 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2021-10-11 00:22:01,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:01,223 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2021-10-11 00:22:01,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:22:01,224 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2021-10-11 00:22:01,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:22:01,226 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:01,227 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 00:22:01,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:22:01,227 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:22:01,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:01,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810196, now seen corresponding path program 1 times [2021-10-11 00:22:01,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:01,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99796912] [2021-10-11 00:22:01,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:01,339 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 00:22:01,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99796912] [2021-10-11 00:22:01,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:01,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:22:01,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285621983] [2021-10-11 00:22:01,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:22:01,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:01,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:22:01,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:22:01,343 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 3 states. [2021-10-11 00:22:01,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:01,358 INFO L93 Difference]: Finished difference Result 102 states and 150 transitions. [2021-10-11 00:22:01,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:22:01,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 00:22:01,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:01,360 INFO L225 Difference]: With dead ends: 102 [2021-10-11 00:22:01,360 INFO L226 Difference]: Without dead ends: 70 [2021-10-11 00:22:01,360 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 00:22:01,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-11 00:22:01,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2021-10-11 00:22:01,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-10-11 00:22:01,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2021-10-11 00:22:01,378 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 24 [2021-10-11 00:22:01,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:01,378 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2021-10-11 00:22:01,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:22:01,378 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2021-10-11 00:22:01,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:22:01,382 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:01,382 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 00:22:01,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:22:01,382 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:22:01,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:01,383 INFO L82 PathProgramCache]: Analyzing trace with hash -718050600, now seen corresponding path program 1 times [2021-10-11 00:22:01,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:01,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541194218] [2021-10-11 00:22:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:01,481 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 00:22:01,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541194218] [2021-10-11 00:22:01,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:01,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:22:01,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757084557] [2021-10-11 00:22:01,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:22:01,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:01,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:22:01,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:22:01,487 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand 3 states. [2021-10-11 00:22:01,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:01,544 INFO L93 Difference]: Finished difference Result 171 states and 256 transitions. [2021-10-11 00:22:01,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:22:01,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-10-11 00:22:01,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:01,546 INFO L225 Difference]: With dead ends: 171 [2021-10-11 00:22:01,546 INFO L226 Difference]: Without dead ends: 111 [2021-10-11 00:22:01,547 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 00:22:01,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-10-11 00:22:01,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2021-10-11 00:22:01,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-10-11 00:22:01,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2021-10-11 00:22:01,578 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 25 [2021-10-11 00:22:01,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:01,578 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2021-10-11 00:22:01,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:22:01,579 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2021-10-11 00:22:01,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 00:22:01,580 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:01,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:22:01,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:22:01,580 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:22:01,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:01,581 INFO L82 PathProgramCache]: Analyzing trace with hash -979667415, now seen corresponding path program 1 times [2021-10-11 00:22:01,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:01,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749354361] [2021-10-11 00:22:01,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:01,683 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 00:22:01,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749354361] [2021-10-11 00:22:01,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:01,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:22:01,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644813034] [2021-10-11 00:22:01,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:22:01,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:01,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:22:01,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:22:01,686 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 5 states. [2021-10-11 00:22:01,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:01,838 INFO L93 Difference]: Finished difference Result 597 states and 891 transitions. [2021-10-11 00:22:01,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:22:01,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2021-10-11 00:22:01,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:22:01,846 INFO L225 Difference]: With dead ends: 597 [2021-10-11 00:22:01,847 INFO L226 Difference]: Without dead ends: 494 [2021-10-11 00:22:01,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:22:01,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2021-10-11 00:22:01,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 198. [2021-10-11 00:22:01,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-10-11 00:22:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 280 transitions. [2021-10-11 00:22:01,897 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 280 transitions. Word has length 27 [2021-10-11 00:22:01,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:22:01,908 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 280 transitions. [2021-10-11 00:22:01,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:22:01,908 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 280 transitions. [2021-10-11 00:22:01,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 00:22:01,912 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:22:01,912 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, 1, 1, 1, 1, 1] [2021-10-11 00:22:01,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:22:01,913 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:22:01,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:01,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1615036139, now seen corresponding path program 1 times [2021-10-11 00:22:01,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:01,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239501311] [2021-10-11 00:22:01,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:02,024 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:02,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:02,145 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:22:02,145 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:22:02,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:22:02,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:22:02 BoogieIcfgContainer [2021-10-11 00:22:02,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:22:02,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:22:02,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:22:02,264 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:22:02,265 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:00" (3/4) ... [2021-10-11 00:22:02,267 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:22:02,358 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1b3270-9349-4602-8acb-76c1080c8460/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:22:02,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:22:02,361 INFO L168 Benchmark]: Toolchain (without parser) took 3436.87 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 60.8 MB in the beginning and 66.5 MB in the end (delta: -5.6 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:02,361 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 48.7 MB in the beginning and 48.6 MB in the end (delta: 78.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:02,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.37 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 60.6 MB in the beginning and 75.1 MB in the end (delta: -14.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:02,362 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.63 ms. Allocated memory is still 109.1 MB. Free memory was 75.1 MB in the beginning and 72.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:02,363 INFO L168 Benchmark]: Boogie Preprocessor took 73.62 ms. Allocated memory is still 109.1 MB. Free memory was 72.2 MB in the beginning and 70.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:02,364 INFO L168 Benchmark]: RCFGBuilder took 893.41 ms. Allocated memory is still 109.1 MB. Free memory was 69.8 MB in the beginning and 50.7 MB in the end (delta: 19.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:02,364 INFO L168 Benchmark]: TraceAbstraction took 1726.21 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 50.1 MB in the beginning and 78.0 MB in the end (delta: -27.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:02,365 INFO L168 Benchmark]: Witness Printer took 105.31 ms. Allocated memory is still 132.1 MB. Free memory was 78.0 MB in the beginning and 66.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:02,368 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 48.7 MB in the beginning and 48.6 MB in the end (delta: 78.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 532.37 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 60.6 MB in the beginning and 75.1 MB in the end (delta: -14.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.63 ms. Allocated memory is still 109.1 MB. Free memory was 75.1 MB in the beginning and 72.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.62 ms. Allocated memory is still 109.1 MB. Free memory was 72.2 MB in the beginning and 70.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 893.41 ms. Allocated memory is still 109.1 MB. Free memory was 69.8 MB in the beginning and 50.7 MB in the end (delta: 19.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1726.21 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 50.1 MB in the beginning and 78.0 MB in the end (delta: -27.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 105.31 ms. Allocated memory is still 132.1 MB. Free memory was 78.0 MB in the beginning and 66.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 558]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L326] int cleanupTimeShifts = 4; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L732] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L402] int retValue_acc ; [L403] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L545] int retValue_acc ; [L548] retValue_acc = 1 [L549] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L409] tmp = valid_product() [L411] 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] [L443] COND TRUE waterLevel < 2 [L444] 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 FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L285] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L130] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L137] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L293] int tmp ; [L294] int tmp___0 ; [L295] int tmp___1 ; [L464] int retValue_acc ; [L467] retValue_acc = methaneLevelCritical [L468] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L299] tmp = isMethaneLevelCritical() [L301] COND FALSE !(\read(tmp)) [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L305] tmp___0 = getWaterLevel() [L307] COND TRUE tmp___0 == 2 [L211] int retValue_acc ; [L214] retValue_acc = pumpRunning [L215] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L309] tmp___1 = isPumpRunning() [L311] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L558] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 363 SDtfs, 337 SDslu, 290 SDs, 0 SdLazy, 56 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 302 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 5120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...