./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product63.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_bf3f7d78-1e41-4122-8a52-07cf7832e686/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3f7d78-1e41-4122-8a52-07cf7832e686/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_bf3f7d78-1e41-4122-8a52-07cf7832e686/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3f7d78-1e41-4122-8a52-07cf7832e686/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3f7d78-1e41-4122-8a52-07cf7832e686/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_bf3f7d78-1e41-4122-8a52-07cf7832e686/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 7819fbe7d63fc779c0cf34c98e41b55fde6ca155 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:30:14,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:30:14,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:30:14,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:30:14,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:30:14,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:30:14,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:30:14,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:30:14,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:30:14,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:30:14,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:30:14,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:30:14,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:30:14,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:30:14,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:30:14,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:30:14,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:30:14,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:30:14,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:30:14,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:30:14,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:30:14,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:30:14,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:30:14,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:30:14,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:30:14,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:30:14,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:30:14,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:30:14,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:30:14,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:30:14,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:30:14,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:30:14,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:30:14,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:30:14,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:30:14,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:30:14,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:30:14,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:30:14,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:30:14,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:30:14,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:30:14,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3f7d78-1e41-4122-8a52-07cf7832e686/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:30:14,230 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:30:14,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:30:14,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:30:14,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:30:14,233 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:30:14,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:30:14,234 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:30:14,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:30:14,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:30:14,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:30:14,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:30:14,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:30:14,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:30:14,236 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:30:14,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:30:14,237 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:30:14,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:30:14,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:30:14,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:30:14,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:30:14,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:30:14,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:30:14,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:30:14,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:30:14,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:30:14,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:30:14,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:30:14,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:30:14,240 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_bf3f7d78-1e41-4122-8a52-07cf7832e686/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3f7d78-1e41-4122-8a52-07cf7832e686/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7819fbe7d63fc779c0cf34c98e41b55fde6ca155 [2021-10-11 00:30:14,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:30:14,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:30:14,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:30:14,544 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:30:14,544 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:30:14,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3f7d78-1e41-4122-8a52-07cf7832e686/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2021-10-11 00:30:14,628 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3f7d78-1e41-4122-8a52-07cf7832e686/bin/uautomizer-Z5i5R5N3CC/data/0de348d91/ed6bc55111fb49bd82677a114bb38bbf/FLAG1c4d78475 [2021-10-11 00:30:15,145 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:30:15,146 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3f7d78-1e41-4122-8a52-07cf7832e686/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2021-10-11 00:30:15,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3f7d78-1e41-4122-8a52-07cf7832e686/bin/uautomizer-Z5i5R5N3CC/data/0de348d91/ed6bc55111fb49bd82677a114bb38bbf/FLAG1c4d78475 [2021-10-11 00:30:15,458 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3f7d78-1e41-4122-8a52-07cf7832e686/bin/uautomizer-Z5i5R5N3CC/data/0de348d91/ed6bc55111fb49bd82677a114bb38bbf [2021-10-11 00:30:15,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:30:15,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:30:15,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:15,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:30:15,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:30:15,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:15" (1/1) ... [2021-10-11 00:30:15,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4375695d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15, skipping insertion in model container [2021-10-11 00:30:15,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:15" (1/1) ... [2021-10-11 00:30:15,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:30:15,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:30:15,754 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_bf3f7d78-1e41-4122-8a52-07cf7832e686/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c[8881,8894] [2021-10-11 00:30:15,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:15,816 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:30:15,859 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_bf3f7d78-1e41-4122-8a52-07cf7832e686/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c[8881,8894] [2021-10-11 00:30:15,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:15,931 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:30:15,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15 WrapperNode [2021-10-11 00:30:15,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:15,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:15,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:30:15,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:30:15,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15" (1/1) ... [2021-10-11 00:30:15,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15" (1/1) ... [2021-10-11 00:30:16,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:16,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:30:16,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:30:16,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:30:16,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15" (1/1) ... [2021-10-11 00:30:16,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15" (1/1) ... [2021-10-11 00:30:16,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15" (1/1) ... [2021-10-11 00:30:16,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15" (1/1) ... [2021-10-11 00:30:16,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15" (1/1) ... [2021-10-11 00:30:16,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15" (1/1) ... [2021-10-11 00:30:16,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15" (1/1) ... [2021-10-11 00:30:16,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:30:16,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:30:16,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:30:16,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:30:16,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3f7d78-1e41-4122-8a52-07cf7832e686/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:30:16,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:30:16,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:30:16,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:30:16,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:30:17,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:30:17,729 INFO L299 CfgBuilder]: Removed 358 assume(true) statements. [2021-10-11 00:30:17,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:17 BoogieIcfgContainer [2021-10-11 00:30:17,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:30:17,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:30:17,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:30:17,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:30:17,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:30:15" (1/3) ... [2021-10-11 00:30:17,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d1a186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:17, skipping insertion in model container [2021-10-11 00:30:17,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:15" (2/3) ... [2021-10-11 00:30:17,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d1a186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:30:17, skipping insertion in model container [2021-10-11 00:30:17,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:17" (3/3) ... [2021-10-11 00:30:17,740 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2021-10-11 00:30:17,754 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:30:17,758 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:30:17,769 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:30:17,798 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:30:17,798 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:30:17,798 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:30:17,799 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:30:17,799 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:30:17,799 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:30:17,799 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:30:17,799 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:30:17,823 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2021-10-11 00:30:17,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 00:30:17,830 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:17,831 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 00:30:17,831 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:17,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:17,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1810150439, now seen corresponding path program 1 times [2021-10-11 00:30:17,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:17,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942991953] [2021-10-11 00:30:17,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:18,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:18,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942991953] [2021-10-11 00:30:18,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:18,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:30:18,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573871731] [2021-10-11 00:30:18,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:30:18,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:18,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:30:18,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:30:18,205 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2021-10-11 00:30:18,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:18,276 INFO L93 Difference]: Finished difference Result 460 states and 689 transitions. [2021-10-11 00:30:18,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:30:18,277 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 00:30:18,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:18,291 INFO L225 Difference]: With dead ends: 460 [2021-10-11 00:30:18,291 INFO L226 Difference]: Without dead ends: 229 [2021-10-11 00:30:18,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:30:18,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-10-11 00:30:18,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2021-10-11 00:30:18,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2021-10-11 00:30:18,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2021-10-11 00:30:18,349 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2021-10-11 00:30:18,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:18,350 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2021-10-11 00:30:18,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:30:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2021-10-11 00:30:18,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:30:18,352 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:18,352 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 00:30:18,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:30:18,353 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:18,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:18,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1201076285, now seen corresponding path program 1 times [2021-10-11 00:30:18,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:18,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365331752] [2021-10-11 00:30:18,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:18,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365331752] [2021-10-11 00:30:18,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:18,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:30:18,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465565803] [2021-10-11 00:30:18,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:30:18,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:18,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:30:18,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:18,465 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 3 states. [2021-10-11 00:30:18,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:18,483 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2021-10-11 00:30:18,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:30:18,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 00:30:18,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:18,495 INFO L225 Difference]: With dead ends: 229 [2021-10-11 00:30:18,495 INFO L226 Difference]: Without dead ends: 87 [2021-10-11 00:30:18,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:18,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-11 00:30:18,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-11 00:30:18,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-10-11 00:30:18,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2021-10-11 00:30:18,511 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2021-10-11 00:30:18,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:18,511 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2021-10-11 00:30:18,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:30:18,512 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2021-10-11 00:30:18,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:30:18,513 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:18,513 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 00:30:18,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:30:18,513 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:18,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:18,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1668670364, now seen corresponding path program 1 times [2021-10-11 00:30:18,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:18,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675462499] [2021-10-11 00:30:18,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:18,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:18,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675462499] [2021-10-11 00:30:18,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:18,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:30:18,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632726406] [2021-10-11 00:30:18,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:30:18,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:18,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:30:18,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:18,621 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 3 states. [2021-10-11 00:30:18,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:18,641 INFO L93 Difference]: Finished difference Result 249 states and 369 transitions. [2021-10-11 00:30:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:30:18,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 00:30:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:18,643 INFO L225 Difference]: With dead ends: 249 [2021-10-11 00:30:18,643 INFO L226 Difference]: Without dead ends: 168 [2021-10-11 00:30:18,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:18,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-10-11 00:30:18,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2021-10-11 00:30:18,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2021-10-11 00:30:18,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 243 transitions. [2021-10-11 00:30:18,666 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 243 transitions. Word has length 24 [2021-10-11 00:30:18,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:18,667 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 243 transitions. [2021-10-11 00:30:18,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:30:18,668 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 243 transitions. [2021-10-11 00:30:18,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 00:30:18,671 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:18,671 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 00:30:18,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:30:18,672 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:18,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:18,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1791027038, now seen corresponding path program 1 times [2021-10-11 00:30:18,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:18,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734129119] [2021-10-11 00:30:18,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:18,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734129119] [2021-10-11 00:30:18,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:18,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:30:18,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253186053] [2021-10-11 00:30:18,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:30:18,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:18,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:30:18,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:18,803 INFO L87 Difference]: Start difference. First operand 164 states and 243 transitions. Second operand 3 states. [2021-10-11 00:30:18,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:18,866 INFO L93 Difference]: Finished difference Result 337 states and 504 transitions. [2021-10-11 00:30:18,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:30:18,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2021-10-11 00:30:18,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:18,869 INFO L225 Difference]: With dead ends: 337 [2021-10-11 00:30:18,869 INFO L226 Difference]: Without dead ends: 179 [2021-10-11 00:30:18,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:30:18,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-10-11 00:30:18,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2021-10-11 00:30:18,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2021-10-11 00:30:18,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 255 transitions. [2021-10-11 00:30:18,909 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 255 transitions. Word has length 27 [2021-10-11 00:30:18,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:18,909 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 255 transitions. [2021-10-11 00:30:18,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:30:18,910 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 255 transitions. [2021-10-11 00:30:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 00:30:18,915 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:18,915 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 00:30:18,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:30:18,916 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:18,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:18,916 INFO L82 PathProgramCache]: Analyzing trace with hash 234819321, now seen corresponding path program 1 times [2021-10-11 00:30:18,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:18,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821557758] [2021-10-11 00:30:18,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:19,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821557758] [2021-10-11 00:30:19,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:19,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:30:19,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161650940] [2021-10-11 00:30:19,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:30:19,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:19,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:30:19,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:30:19,023 INFO L87 Difference]: Start difference. First operand 177 states and 255 transitions. Second operand 5 states. [2021-10-11 00:30:19,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:19,170 INFO L93 Difference]: Finished difference Result 899 states and 1311 transitions. [2021-10-11 00:30:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:30:19,171 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2021-10-11 00:30:19,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:30:19,176 INFO L225 Difference]: With dead ends: 899 [2021-10-11 00:30:19,176 INFO L226 Difference]: Without dead ends: 728 [2021-10-11 00:30:19,177 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 00:30:19,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2021-10-11 00:30:19,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 276. [2021-10-11 00:30:19,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2021-10-11 00:30:19,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 388 transitions. [2021-10-11 00:30:19,222 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 388 transitions. Word has length 27 [2021-10-11 00:30:19,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:30:19,223 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 388 transitions. [2021-10-11 00:30:19,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:30:19,223 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 388 transitions. [2021-10-11 00:30:19,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 00:30:19,227 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:30:19,227 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, 1, 1, 1, 1] [2021-10-11 00:30:19,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:30:19,227 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:30:19,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:19,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1465444421, now seen corresponding path program 1 times [2021-10-11 00:30:19,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:19,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680145802] [2021-10-11 00:30:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:19,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:19,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:19,439 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:19,439 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:30:19,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:30:19,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:30:19 BoogieIcfgContainer [2021-10-11 00:30:19,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:30:19,601 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:30:19,601 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:30:19,601 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:30:19,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:17" (3/4) ... [2021-10-11 00:30:19,604 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:30:19,687 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf3f7d78-1e41-4122-8a52-07cf7832e686/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:30:19,689 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:30:19,691 INFO L168 Benchmark]: Toolchain (without parser) took 4227.95 ms. Allocated memory was 121.6 MB in the beginning and 157.3 MB in the end (delta: 35.7 MB). Free memory was 83.9 MB in the beginning and 107.9 MB in the end (delta: -24.0 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:19,693 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 121.6 MB. Free memory is still 101.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:19,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.09 ms. Allocated memory is still 121.6 MB. Free memory was 83.6 MB in the beginning and 85.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:19,695 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.13 ms. Allocated memory is still 121.6 MB. Free memory was 85.3 MB in the beginning and 79.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:19,696 INFO L168 Benchmark]: Boogie Preprocessor took 108.54 ms. Allocated memory is still 121.6 MB. Free memory was 79.5 MB in the beginning and 74.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:19,696 INFO L168 Benchmark]: RCFGBuilder took 1594.57 ms. Allocated memory was 121.6 MB in the beginning and 157.3 MB in the end (delta: 35.7 MB). Free memory was 74.8 MB in the beginning and 115.6 MB in the end (delta: -40.8 MB). Peak memory consumption was 42.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:19,697 INFO L168 Benchmark]: TraceAbstraction took 1866.86 ms. Allocated memory is still 157.3 MB. Free memory was 115.6 MB in the beginning and 119.4 MB in the end (delta: -3.8 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:19,697 INFO L168 Benchmark]: Witness Printer took 88.30 ms. Allocated memory is still 157.3 MB. Free memory was 119.4 MB in the beginning and 107.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:19,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 121.6 MB. Free memory is still 101.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 468.09 ms. Allocated memory is still 121.6 MB. Free memory was 83.6 MB in the beginning and 85.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.13 ms. Allocated memory is still 121.6 MB. Free memory was 85.3 MB in the beginning and 79.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.54 ms. Allocated memory is still 121.6 MB. Free memory was 79.5 MB in the beginning and 74.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1594.57 ms. Allocated memory was 121.6 MB in the beginning and 157.3 MB in the end (delta: 35.7 MB). Free memory was 74.8 MB in the beginning and 115.6 MB in the end (delta: -40.8 MB). Peak memory consumption was 42.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1866.86 ms. Allocated memory is still 157.3 MB. Free memory was 115.6 MB in the beginning and 119.4 MB in the end (delta: -3.8 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. * Witness Printer took 88.30 ms. Allocated memory is still 157.3 MB. Free memory was 119.4 MB in the beginning and 107.9 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: 621]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L190] int pumpRunning = 0; [L191] int systemActive = 1; [L514] int waterLevel = 1; [L515] int methaneLevelCritical = 0; [L829] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; 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] [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] 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] [L447] int splverifierCounter ; [L448] int tmp ; [L449] int tmp___0 ; [L450] int tmp___1 ; [L451] int tmp___2 ; [L454] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L456] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L458] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L464] tmp = __VERIFIER_nondet_int() [L466] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] COND TRUE waterLevel < 2 [L533] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L474] tmp___0 = __VERIFIER_nondet_int() [L476] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L484] tmp___2 = __VERIFIER_nondet_int() [L486] COND FALSE !(\read(tmp___2)) [L490] tmp___1 = __VERIFIER_nondet_int() [L492] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L441] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L198] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L205] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L627] int tmp ; [L628] int tmp___0 ; [L629] int tmp___1 ; [L553] int retValue_acc ; [L556] retValue_acc = methaneLevelCritical [L557] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L633] tmp = isMethaneLevelCritical() [L635] COND FALSE !(\read(tmp)) [L585] int retValue_acc ; [L588] retValue_acc = waterLevel [L589] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L639] tmp___0 = getWaterLevel() [L641] COND TRUE tmp___0 == 2 [L348] int retValue_acc ; [L351] retValue_acc = pumpRunning [L352] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L643] tmp___1 = isPumpRunning() [L645] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L621] 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, 233 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 869 SDtfs, 682 SDslu, 599 SDs, 0 SdLazy, 73 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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=276occurred 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, 458 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 5388 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...