./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer --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 41828788c86d3b4773495bb168c9dac21937a6b5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-a4ecdab [2020-11-28 03:03:20,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:03:20,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:03:21,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:03:21,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:03:21,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:03:21,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:03:21,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:03:21,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:03:21,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:03:21,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:03:21,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:03:21,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:03:21,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:03:21,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:03:21,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:03:21,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:03:21,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:03:21,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:03:21,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:03:21,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:03:21,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:03:21,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:03:21,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:03:21,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:03:21,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:03:21,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:03:21,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:03:21,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:03:21,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:03:21,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:03:21,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:03:21,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:03:21,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:03:21,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:03:21,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:03:21,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:03:21,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:03:21,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:03:21,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:03:21,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:03:21,213 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:03:21,247 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:03:21,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:03:21,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:03:21,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:03:21,249 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:03:21,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:03:21,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:03:21,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:03:21,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:03:21,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:03:21,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:03:21,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:03:21,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:03:21,252 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:03:21,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:03:21,252 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:03:21,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:03:21,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:03:21,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:03:21,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:03:21,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:03:21,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:03:21,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:03:21,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:03:21,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:03:21,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:03:21,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:03:21,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:03:21,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:03:21,255 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-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41828788c86d3b4773495bb168c9dac21937a6b5 [2020-11-28 03:03:21,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:03:21,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:03:21,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:03:21,666 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:03:21,668 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:03:21,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2020-11-28 03:03:21,790 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/data/7b4ce24eb/029926edcf5241cf8e512c09449b384c/FLAG5c763aeee [2020-11-28 03:03:22,413 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:03:22,414 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2020-11-28 03:03:22,439 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/data/7b4ce24eb/029926edcf5241cf8e512c09449b384c/FLAG5c763aeee [2020-11-28 03:03:22,687 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/data/7b4ce24eb/029926edcf5241cf8e512c09449b384c [2020-11-28 03:03:22,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:03:22,692 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:03:22,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:22,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:03:22,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:03:22,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:22" (1/1) ... [2020-11-28 03:03:22,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73b0b903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:22, skipping insertion in model container [2020-11-28 03:03:22,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:22" (1/1) ... [2020-11-28 03:03:22,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:03:22,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:03:23,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:23,288 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:03:23,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:23,452 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:03:23,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:23 WrapperNode [2020-11-28 03:03:23,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:23,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:23,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:03:23,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:03:23,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:23" (1/1) ... [2020-11-28 03:03:23,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:23" (1/1) ... [2020-11-28 03:03:23,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:23,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:03:23,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:03:23,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:03:23,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:23" (1/1) ... [2020-11-28 03:03:23,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:23" (1/1) ... [2020-11-28 03:03:23,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:23" (1/1) ... [2020-11-28 03:03:23,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:23" (1/1) ... [2020-11-28 03:03:23,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:23" (1/1) ... [2020-11-28 03:03:23,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:23" (1/1) ... [2020-11-28 03:03:23,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:23" (1/1) ... [2020-11-28 03:03:23,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:03:23,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:03:23,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:03:23,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:03:23,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/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 [2020-11-28 03:03:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:03:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:03:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:03:23,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:03:25,021 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:03:25,025 INFO L298 CfgBuilder]: Removed 174 assume(true) statements. [2020-11-28 03:03:25,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:25 BoogieIcfgContainer [2020-11-28 03:03:25,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:03:25,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:03:25,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:03:25,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:03:25,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:03:22" (1/3) ... [2020-11-28 03:03:25,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a00e92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:25, skipping insertion in model container [2020-11-28 03:03:25,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:23" (2/3) ... [2020-11-28 03:03:25,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a00e92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:25, skipping insertion in model container [2020-11-28 03:03:25,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:25" (3/3) ... [2020-11-28 03:03:25,038 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2020-11-28 03:03:25,051 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:03:25,057 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:03:25,071 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:03:25,110 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:03:25,110 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:03:25,111 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:03:25,111 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:03:25,111 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:03:25,111 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:03:25,111 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:03:25,112 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:03:25,132 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-11-28 03:03:25,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:03:25,139 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:25,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:25,140 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:25,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:25,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1818462071, now seen corresponding path program 1 times [2020-11-28 03:03:25,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:25,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842085012] [2020-11-28 03:03:25,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:25,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842085012] [2020-11-28 03:03:25,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:25,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:03:25,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612951943] [2020-11-28 03:03:25,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:03:25,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:25,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:03:25,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:03:25,543 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-11-28 03:03:25,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:25,580 INFO L93 Difference]: Finished difference Result 223 states and 332 transitions. [2020-11-28 03:03:25,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:03:25,582 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:03:25,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:25,595 INFO L225 Difference]: With dead ends: 223 [2020-11-28 03:03:25,596 INFO L226 Difference]: Without dead ends: 109 [2020-11-28 03:03:25,600 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 [2020-11-28 03:03:25,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-28 03:03:25,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-28 03:03:25,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-28 03:03:25,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2020-11-28 03:03:25,655 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2020-11-28 03:03:25,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:25,656 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2020-11-28 03:03:25,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:03:25,656 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2020-11-28 03:03:25,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:03:25,658 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:25,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:25,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:03:25,659 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:25,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:25,660 INFO L82 PathProgramCache]: Analyzing trace with hash 907431318, now seen corresponding path program 1 times [2020-11-28 03:03:25,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:25,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476506988] [2020-11-28 03:03:25,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:25,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:25,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476506988] [2020-11-28 03:03:25,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:25,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:03:25,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753071907] [2020-11-28 03:03:25,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:03:25,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:25,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:03:25,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:03:25,822 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 3 states. [2020-11-28 03:03:25,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:25,853 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2020-11-28 03:03:25,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:03:25,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:03:25,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:25,856 INFO L225 Difference]: With dead ends: 109 [2020-11-28 03:03:25,858 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 03:03:25,859 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 [2020-11-28 03:03:25,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 03:03:25,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-28 03:03:25,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-28 03:03:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-28 03:03:25,875 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2020-11-28 03:03:25,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:25,875 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-28 03:03:25,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:03:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-28 03:03:25,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:03:25,879 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:25,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:25,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:03:25,881 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:25,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:25,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1805721692, now seen corresponding path program 1 times [2020-11-28 03:03:25,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:25,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773570139] [2020-11-28 03:03:25,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:25,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773570139] [2020-11-28 03:03:25,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:25,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:03:25,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852261696] [2020-11-28 03:03:25,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:03:25,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:25,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:03:25,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:03:25,993 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-11-28 03:03:26,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:26,063 INFO L93 Difference]: Finished difference Result 129 states and 189 transitions. [2020-11-28 03:03:26,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:03:26,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:03:26,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:26,067 INFO L225 Difference]: With dead ends: 129 [2020-11-28 03:03:26,069 INFO L226 Difference]: Without dead ends: 88 [2020-11-28 03:03:26,070 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 [2020-11-28 03:03:26,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-11-28 03:03:26,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2020-11-28 03:03:26,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-28 03:03:26,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 123 transitions. [2020-11-28 03:03:26,102 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 123 transitions. Word has length 24 [2020-11-28 03:03:26,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:26,104 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 123 transitions. [2020-11-28 03:03:26,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:03:26,105 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 123 transitions. [2020-11-28 03:03:26,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:03:26,108 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:26,108 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] [2020-11-28 03:03:26,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:03:26,110 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:26,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:26,111 INFO L82 PathProgramCache]: Analyzing trace with hash -820987702, now seen corresponding path program 1 times [2020-11-28 03:03:26,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:26,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834260955] [2020-11-28 03:03:26,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:26,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:26,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834260955] [2020-11-28 03:03:26,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:26,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:26,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634667178] [2020-11-28 03:03:26,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:03:26,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:26,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:03:26,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:26,289 INFO L87 Difference]: Start difference. First operand 84 states and 123 transitions. Second operand 5 states. [2020-11-28 03:03:26,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:26,535 INFO L93 Difference]: Finished difference Result 488 states and 740 transitions. [2020-11-28 03:03:26,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:03:26,536 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-28 03:03:26,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:26,544 INFO L225 Difference]: With dead ends: 488 [2020-11-28 03:03:26,547 INFO L226 Difference]: Without dead ends: 410 [2020-11-28 03:03:26,549 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 [2020-11-28 03:03:26,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-11-28 03:03:26,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 156. [2020-11-28 03:03:26,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-11-28 03:03:26,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 227 transitions. [2020-11-28 03:03:26,600 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 227 transitions. Word has length 26 [2020-11-28 03:03:26,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:26,600 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 227 transitions. [2020-11-28 03:03:26,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:03:26,600 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 227 transitions. [2020-11-28 03:03:26,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:03:26,603 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:26,603 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] [2020-11-28 03:03:26,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:03:26,604 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:03:26,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:26,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1430024248, now seen corresponding path program 1 times [2020-11-28 03:03:26,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:26,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52031001] [2020-11-28 03:03:26,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:26,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:26,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:26,912 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:26,913 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:03:26,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:03:27,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:03:27 BoogieIcfgContainer [2020-11-28 03:03:27,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:03:27,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:03:27,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:03:27,064 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:03:27,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:25" (3/4) ... [2020-11-28 03:03:27,068 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:03:27,216 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2aa84dc1-e823-419e-8432-de8b689ccdcf/bin/uautomizer/witness.graphml [2020-11-28 03:03:27,216 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:03:27,219 INFO L168 Benchmark]: Toolchain (without parser) took 4525.57 ms. Allocated memory was 79.7 MB in the beginning and 134.2 MB in the end (delta: 54.5 MB). Free memory was 47.6 MB in the beginning and 101.5 MB in the end (delta: -53.9 MB). Peak memory consumption was 50.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:27,222 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 79.7 MB. Free memory was 39.4 MB in the beginning and 39.4 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:27,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.95 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 47.3 MB in the beginning and 74.5 MB in the end (delta: -27.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:27,223 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.01 ms. Allocated memory is still 107.0 MB. Free memory was 74.5 MB in the beginning and 70.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:27,224 INFO L168 Benchmark]: Boogie Preprocessor took 88.82 ms. Allocated memory is still 107.0 MB. Free memory was 70.7 MB in the beginning and 68.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:27,224 INFO L168 Benchmark]: RCFGBuilder took 1377.85 ms. Allocated memory is still 107.0 MB. Free memory was 67.9 MB in the beginning and 66.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:27,225 INFO L168 Benchmark]: TraceAbstraction took 2033.24 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 66.3 MB in the beginning and 56.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:27,225 INFO L168 Benchmark]: Witness Printer took 152.28 ms. Allocated memory is still 134.2 MB. Free memory was 56.3 MB in the beginning and 101.5 MB in the end (delta: -45.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:27,228 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 79.7 MB. Free memory was 39.4 MB in the beginning and 39.4 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 737.95 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 47.3 MB in the beginning and 74.5 MB in the end (delta: -27.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.01 ms. Allocated memory is still 107.0 MB. Free memory was 74.5 MB in the beginning and 70.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.82 ms. Allocated memory is still 107.0 MB. Free memory was 70.7 MB in the beginning and 68.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1377.85 ms. Allocated memory is still 107.0 MB. Free memory was 67.9 MB in the beginning and 66.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2033.24 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 66.3 MB in the beginning and 56.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. * Witness Printer took 152.28 ms. Allocated memory is still 134.2 MB. Free memory was 56.3 MB in the beginning and 101.5 MB in the end (delta: -45.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int pumpRunning = 0; [L492] int systemActive = 1; [L719] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L795] int retValue_acc ; [L796] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L879] int retValue_acc ; [L882] retValue_acc = 1 [L883] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L802] tmp = valid_product() [L804] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L426] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] COND TRUE waterLevel < 2 [L907] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L705] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L499] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] COND TRUE \read(systemActive) [L554] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L557] COND FALSE !(\read(pumpRunning)) [L528] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L531] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L820] int tmp ; [L821] int tmp___0 ; [L822] int tmp___1 ; [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L826] tmp = isMethaneLevelCritical() [L828] COND FALSE !(\read(tmp)) [L959] int retValue_acc ; [L962] retValue_acc = waterLevel [L963] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L832] tmp___0 = getWaterLevel() [L834] COND TRUE tmp___0 == 2 [L623] int retValue_acc ; [L626] retValue_acc = pumpRunning [L627] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L836] tmp___1 = isPumpRunning() [L838] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product32.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 116 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 402 SDtfs, 445 SDslu, 330 SDs, 0 SdLazy, 53 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=4, 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, 4 MinimizatonAttempts, 258 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3031 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...