./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.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_50d9c72d-96b4-49aa-aa48-34d125f7faea/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d9c72d-96b4-49aa-aa48-34d125f7faea/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_50d9c72d-96b4-49aa-aa48-34d125f7faea/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d9c72d-96b4-49aa-aa48-34d125f7faea/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d9c72d-96b4-49aa-aa48-34d125f7faea/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_50d9c72d-96b4-49aa-aa48-34d125f7faea/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 df93fd989d6774382f7bc06f2f37e13403a51d4e ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:28:21,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:28:21,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:28:21,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:28:21,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:28:21,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:28:21,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:28:21,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:28:21,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:28:21,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:28:21,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:28:21,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:28:21,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:28:21,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:28:21,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:28:21,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:28:21,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:28:21,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:28:21,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:28:21,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:28:21,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:28:21,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:28:21,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:28:21,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:28:21,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:28:21,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:28:21,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:28:21,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:28:21,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:28:21,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:28:21,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:28:21,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:28:21,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:28:21,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:28:21,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:28:21,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:28:21,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:28:21,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:28:21,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:28:21,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:28:21,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:28:21,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d9c72d-96b4-49aa-aa48-34d125f7faea/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:28:21,869 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:28:21,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:28:21,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:28:21,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:28:21,874 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:28:21,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:28:21,875 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:28:21,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:28:21,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:28:21,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:28:21,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:28:21,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:28:21,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:28:21,881 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:28:21,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:28:21,881 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:28:21,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:28:21,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:28:21,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:28:21,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:28:21,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:21,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:28:21,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:28:21,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:28:21,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:28:21,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:28:21,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:28:21,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:28:21,884 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_50d9c72d-96b4-49aa-aa48-34d125f7faea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d9c72d-96b4-49aa-aa48-34d125f7faea/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df93fd989d6774382f7bc06f2f37e13403a51d4e [2021-10-11 00:28:22,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:28:22,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:28:22,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:28:22,241 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:28:22,244 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:28:22,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d9c72d-96b4-49aa-aa48-34d125f7faea/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2021-10-11 00:28:22,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d9c72d-96b4-49aa-aa48-34d125f7faea/bin/uautomizer-Z5i5R5N3CC/data/29b0be225/fa95661b92f9421ebf5f6e388a49c313/FLAG1219b41c1 [2021-10-11 00:28:22,872 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:28:22,873 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d9c72d-96b4-49aa-aa48-34d125f7faea/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2021-10-11 00:28:22,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d9c72d-96b4-49aa-aa48-34d125f7faea/bin/uautomizer-Z5i5R5N3CC/data/29b0be225/fa95661b92f9421ebf5f6e388a49c313/FLAG1219b41c1 [2021-10-11 00:28:23,145 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d9c72d-96b4-49aa-aa48-34d125f7faea/bin/uautomizer-Z5i5R5N3CC/data/29b0be225/fa95661b92f9421ebf5f6e388a49c313 [2021-10-11 00:28:23,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:28:23,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:28:23,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:23,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:28:23,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:28:23,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:23" (1/1) ... [2021-10-11 00:28:23,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d1abfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23, skipping insertion in model container [2021-10-11 00:28:23,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:23" (1/1) ... [2021-10-11 00:28:23,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:28:23,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:28:23,586 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_50d9c72d-96b4-49aa-aa48-34d125f7faea/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[18951,18964] [2021-10-11 00:28:23,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:23,599 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:28:23,721 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_50d9c72d-96b4-49aa-aa48-34d125f7faea/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[18951,18964] [2021-10-11 00:28:23,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:23,768 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:28:23,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23 WrapperNode [2021-10-11 00:28:23,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:23,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:23,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:28:23,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:28:23,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23" (1/1) ... [2021-10-11 00:28:23,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23" (1/1) ... [2021-10-11 00:28:23,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:23,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:28:23,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:28:23,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:28:23,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23" (1/1) ... [2021-10-11 00:28:23,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23" (1/1) ... [2021-10-11 00:28:23,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23" (1/1) ... [2021-10-11 00:28:23,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23" (1/1) ... [2021-10-11 00:28:23,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23" (1/1) ... [2021-10-11 00:28:23,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23" (1/1) ... [2021-10-11 00:28:23,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23" (1/1) ... [2021-10-11 00:28:23,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:28:23,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:28:23,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:28:23,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:28:23,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d9c72d-96b4-49aa-aa48-34d125f7faea/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 00:28:24,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:28:24,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:28:24,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:28:24,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:28:25,295 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:28:25,296 INFO L299 CfgBuilder]: Removed 288 assume(true) statements. [2021-10-11 00:28:25,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:25 BoogieIcfgContainer [2021-10-11 00:28:25,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:28:25,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:28:25,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:28:25,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:28:25,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:28:23" (1/3) ... [2021-10-11 00:28:25,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c24cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:25, skipping insertion in model container [2021-10-11 00:28:25,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:23" (2/3) ... [2021-10-11 00:28:25,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c24cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:25, skipping insertion in model container [2021-10-11 00:28:25,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:25" (3/3) ... [2021-10-11 00:28:25,311 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2021-10-11 00:28:25,329 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:28:25,333 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:28:25,345 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:28:25,388 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:28:25,389 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:28:25,389 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:28:25,389 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:28:25,389 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:28:25,389 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:28:25,389 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:28:25,390 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:28:25,413 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2021-10-11 00:28:25,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:28:25,433 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:25,434 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 00:28:25,435 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:25,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:25,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1618500051, now seen corresponding path program 1 times [2021-10-11 00:28:25,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:25,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254130651] [2021-10-11 00:28:25,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:25,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:25,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254130651] [2021-10-11 00:28:25,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:25,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:28:25,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179527120] [2021-10-11 00:28:25,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:28:25,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:25,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:28:25,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:28:25,709 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2021-10-11 00:28:25,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:25,751 INFO L93 Difference]: Finished difference Result 388 states and 593 transitions. [2021-10-11 00:28:25,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:28:25,752 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 00:28:25,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:25,764 INFO L225 Difference]: With dead ends: 388 [2021-10-11 00:28:25,764 INFO L226 Difference]: Without dead ends: 193 [2021-10-11 00:28:25,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:28:25,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-10-11 00:28:25,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2021-10-11 00:28:25,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2021-10-11 00:28:25,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2021-10-11 00:28:25,817 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2021-10-11 00:28:25,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:25,817 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2021-10-11 00:28:25,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:28:25,818 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2021-10-11 00:28:25,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:28:25,819 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:25,819 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 00:28:25,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:28:25,820 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:25,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:25,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1765436492, now seen corresponding path program 1 times [2021-10-11 00:28:25,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:25,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756360780] [2021-10-11 00:28:25,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:25,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:25,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756360780] [2021-10-11 00:28:25,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:25,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:28:25,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426450491] [2021-10-11 00:28:25,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:28:25,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:25,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:28:25,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:25,927 INFO L87 Difference]: Start difference. First operand 193 states and 288 transitions. Second operand 3 states. [2021-10-11 00:28:25,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:25,944 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2021-10-11 00:28:25,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:28:25,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 00:28:25,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:25,946 INFO L225 Difference]: With dead ends: 193 [2021-10-11 00:28:25,946 INFO L226 Difference]: Without dead ends: 75 [2021-10-11 00:28:25,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:25,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-11 00:28:25,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-10-11 00:28:25,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2021-10-11 00:28:25,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2021-10-11 00:28:25,955 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2021-10-11 00:28:25,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:25,955 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-10-11 00:28:25,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:28:25,956 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2021-10-11 00:28:25,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:28:25,957 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:25,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:25,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:28:25,957 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:25,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:25,958 INFO L82 PathProgramCache]: Analyzing trace with hash 134472408, now seen corresponding path program 1 times [2021-10-11 00:28:25,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:25,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557107156] [2021-10-11 00:28:25,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:26,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:26,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557107156] [2021-10-11 00:28:26,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:26,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:28:26,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242550410] [2021-10-11 00:28:26,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:28:26,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:26,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:28:26,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:26,074 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand 3 states. [2021-10-11 00:28:26,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:26,128 INFO L93 Difference]: Finished difference Result 213 states and 321 transitions. [2021-10-11 00:28:26,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:28:26,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 00:28:26,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:26,133 INFO L225 Difference]: With dead ends: 213 [2021-10-11 00:28:26,135 INFO L226 Difference]: Without dead ends: 144 [2021-10-11 00:28:26,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:26,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-11 00:28:26,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 140. [2021-10-11 00:28:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2021-10-11 00:28:26,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 211 transitions. [2021-10-11 00:28:26,166 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 211 transitions. Word has length 24 [2021-10-11 00:28:26,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:26,166 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 211 transitions. [2021-10-11 00:28:26,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:28:26,167 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 211 transitions. [2021-10-11 00:28:26,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 00:28:26,170 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:26,170 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 00:28:26,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:28:26,170 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:26,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:26,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1119046690, now seen corresponding path program 1 times [2021-10-11 00:28:26,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:26,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035272715] [2021-10-11 00:28:26,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:26,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035272715] [2021-10-11 00:28:26,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:26,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:28:26,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838716795] [2021-10-11 00:28:26,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:28:26,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:26,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:28:26,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:26,308 INFO L87 Difference]: Start difference. First operand 140 states and 211 transitions. Second operand 3 states. [2021-10-11 00:28:26,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:26,379 INFO L93 Difference]: Finished difference Result 295 states and 448 transitions. [2021-10-11 00:28:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:28:26,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2021-10-11 00:28:26,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:26,381 INFO L225 Difference]: With dead ends: 295 [2021-10-11 00:28:26,382 INFO L226 Difference]: Without dead ends: 161 [2021-10-11 00:28:26,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:26,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-10-11 00:28:26,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2021-10-11 00:28:26,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2021-10-11 00:28:26,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 231 transitions. [2021-10-11 00:28:26,421 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 231 transitions. Word has length 27 [2021-10-11 00:28:26,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:26,422 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 231 transitions. [2021-10-11 00:28:26,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:28:26,422 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 231 transitions. [2021-10-11 00:28:26,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 00:28:26,426 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:26,426 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 00:28:26,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:28:26,426 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:26,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:26,427 INFO L82 PathProgramCache]: Analyzing trace with hash -428868179, now seen corresponding path program 1 times [2021-10-11 00:28:26,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:26,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33413783] [2021-10-11 00:28:26,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:26,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:26,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33413783] [2021-10-11 00:28:26,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:26,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:28:26,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047421068] [2021-10-11 00:28:26,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:26,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:26,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:26,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:26,558 INFO L87 Difference]: Start difference. First operand 159 states and 231 transitions. Second operand 5 states. [2021-10-11 00:28:26,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:26,708 INFO L93 Difference]: Finished difference Result 809 states and 1191 transitions. [2021-10-11 00:28:26,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:28:26,709 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2021-10-11 00:28:26,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:26,713 INFO L225 Difference]: With dead ends: 809 [2021-10-11 00:28:26,713 INFO L226 Difference]: Without dead ends: 656 [2021-10-11 00:28:26,714 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 00:28:26,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2021-10-11 00:28:26,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 252. [2021-10-11 00:28:26,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2021-10-11 00:28:26,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 356 transitions. [2021-10-11 00:28:26,748 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 356 transitions. Word has length 27 [2021-10-11 00:28:26,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:26,748 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 356 transitions. [2021-10-11 00:28:26,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:26,748 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 356 transitions. [2021-10-11 00:28:26,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 00:28:26,750 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:26,750 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 00:28:26,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:28:26,750 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:26,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:26,751 INFO L82 PathProgramCache]: Analyzing trace with hash -2129131921, now seen corresponding path program 1 times [2021-10-11 00:28:26,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:26,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941235413] [2021-10-11 00:28:26,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:26,816 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:26,889 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:26,926 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:28:26,927 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:28:26,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:28:27,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:28:27 BoogieIcfgContainer [2021-10-11 00:28:27,038 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:28:27,039 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:28:27,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:28:27,039 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:28:27,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:25" (3/4) ... [2021-10-11 00:28:27,041 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:28:27,110 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d9c72d-96b4-49aa-aa48-34d125f7faea/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:28:27,110 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:28:27,112 INFO L168 Benchmark]: Toolchain (without parser) took 3959.75 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 62.8 MB in the beginning and 67.5 MB in the end (delta: -4.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:27,112 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 102.8 MB. Free memory is still 80.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:27,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.87 ms. Allocated memory is still 102.8 MB. Free memory was 62.6 MB in the beginning and 66.2 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:27,113 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.64 ms. Allocated memory is still 102.8 MB. Free memory was 66.2 MB in the beginning and 61.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:27,113 INFO L168 Benchmark]: Boogie Preprocessor took 61.81 ms. Allocated memory is still 102.8 MB. Free memory was 61.1 MB in the beginning and 57.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:27,114 INFO L168 Benchmark]: RCFGBuilder took 1373.36 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 57.3 MB in the beginning and 93.5 MB in the end (delta: -36.1 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:27,114 INFO L168 Benchmark]: TraceAbstraction took 1735.22 ms. Allocated memory is still 127.9 MB. Free memory was 93.5 MB in the beginning and 79.1 MB in the end (delta: 14.4 MB). Peak memory consumption was 60.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:27,115 INFO L168 Benchmark]: Witness Printer took 71.18 ms. Allocated memory is still 127.9 MB. Free memory was 79.1 MB in the beginning and 67.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:27,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 102.8 MB. Free memory is still 80.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 612.87 ms. Allocated memory is still 102.8 MB. Free memory was 62.6 MB in the beginning and 66.2 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.64 ms. Allocated memory is still 102.8 MB. Free memory was 66.2 MB in the beginning and 61.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.81 ms. Allocated memory is still 102.8 MB. Free memory was 61.1 MB in the beginning and 57.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1373.36 ms. Allocated memory was 102.8 MB in the beginning and 127.9 MB in the end (delta: 25.2 MB). Free memory was 57.3 MB in the beginning and 93.5 MB in the end (delta: -36.1 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1735.22 ms. Allocated memory is still 127.9 MB. Free memory was 93.5 MB in the beginning and 79.1 MB in the end (delta: 14.4 MB). Peak memory consumption was 60.5 MB. Max. memory is 16.1 GB. * Witness Printer took 71.18 ms. Allocated memory is still 127.9 MB. Free memory was 79.1 MB in the beginning and 67.5 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: 1015]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L943] int splverifierCounter ; [L944] int tmp ; [L945] int tmp___0 ; [L946] int tmp___1 ; [L947] int tmp___2 ; [L950] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L952] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L954] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L960] tmp = __VERIFIER_nondet_int() [L962] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] COND TRUE waterLevel < 2 [L608] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L970] tmp___0 = __VERIFIER_nondet_int() [L972] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L980] tmp___2 = __VERIFIER_nondet_int() [L982] COND FALSE !(\read(tmp___2)) [L988] tmp___1 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L922] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L929] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L703] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L710] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L552] int tmp ; [L553] int tmp___0 ; [L554] int tmp___1 ; [L628] int retValue_acc ; [L631] retValue_acc = methaneLevelCritical [L632] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L558] tmp = isMethaneLevelCritical() [L560] COND FALSE !(\read(tmp)) [L660] int retValue_acc ; [L663] retValue_acc = waterLevel [L664] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L564] tmp___0 = getWaterLevel() [L566] COND TRUE tmp___0 == 2 [L836] int retValue_acc ; [L839] retValue_acc = pumpRunning [L840] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L568] tmp___1 = isPumpRunning() [L570] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1015] 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, 197 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 753 SDtfs, 598 SDslu, 522 SDs, 0 SdLazy, 73 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred 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, 410 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4790 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...