./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.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_9c94035b-a5b4-425c-87c7-371240886328/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/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 766a879002f02395031e659ac25b856858b20e6e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:18:04,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:18:04,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:18:05,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:18:05,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:18:05,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:18:05,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:18:05,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:18:05,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:18:05,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:18:05,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:18:05,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:18:05,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:18:05,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:18:05,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:18:05,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:18:05,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:18:05,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:18:05,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:18:05,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:18:05,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:18:05,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:18:05,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:18:05,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:18:05,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:18:05,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:18:05,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:18:05,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:18:05,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:18:05,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:18:05,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:18:05,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:18:05,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:18:05,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:18:05,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:18:05,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:18:05,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:18:05,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:18:05,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:18:05,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:18:05,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:18:05,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:18:05,126 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:18:05,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:18:05,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:18:05,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:18:05,129 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:18:05,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:18:05,129 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:18:05,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:18:05,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:18:05,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:18:05,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:18:05,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:18:05,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:18:05,132 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:18:05,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:18:05,132 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:18:05,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:18:05,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:18:05,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:18:05,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:18:05,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:18:05,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:18:05,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:18:05,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:18:05,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:18:05,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:18:05,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:18:05,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:18:05,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:18:05,137 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_9c94035b-a5b4-425c-87c7-371240886328/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 766a879002f02395031e659ac25b856858b20e6e [2020-11-28 03:18:05,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:18:05,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:18:05,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:18:05,433 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:18:05,434 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:18:05,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2020-11-28 03:18:05,513 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/bin/uautomizer/data/cc794750b/c9a71b7ed6a44bfea17babc67b8e8f36/FLAG2461a55f7 [2020-11-28 03:18:06,063 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:18:06,064 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2020-11-28 03:18:06,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/bin/uautomizer/data/cc794750b/c9a71b7ed6a44bfea17babc67b8e8f36/FLAG2461a55f7 [2020-11-28 03:18:06,383 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/bin/uautomizer/data/cc794750b/c9a71b7ed6a44bfea17babc67b8e8f36 [2020-11-28 03:18:06,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:18:06,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:18:06,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:06,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:18:06,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:18:06,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:06" (1/1) ... [2020-11-28 03:18:06,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d56c443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:06, skipping insertion in model container [2020-11-28 03:18:06,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:06" (1/1) ... [2020-11-28 03:18:06,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:18:06,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:18:06,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:06,907 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:18:07,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:07,078 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:18:07,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07 WrapperNode [2020-11-28 03:18:07,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:07,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:07,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:18:07,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:18:07,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:07,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:18:07,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:18:07,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:18:07,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... [2020-11-28 03:18:07,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:18:07,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:18:07,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:18:07,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:18:07,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/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 03:18:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:18:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:18:07,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:18:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:18:08,411 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:18:08,411 INFO L298 CfgBuilder]: Removed 172 assume(true) statements. [2020-11-28 03:18:08,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:08 BoogieIcfgContainer [2020-11-28 03:18:08,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:18:08,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:18:08,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:18:08,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:18:08,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:06" (1/3) ... [2020-11-28 03:18:08,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196a6597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:08, skipping insertion in model container [2020-11-28 03:18:08,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:07" (2/3) ... [2020-11-28 03:18:08,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196a6597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:08, skipping insertion in model container [2020-11-28 03:18:08,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:08" (3/3) ... [2020-11-28 03:18:08,423 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2020-11-28 03:18:08,435 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:18:08,440 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:18:08,462 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:18:08,490 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:18:08,491 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:18:08,491 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:18:08,491 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:18:08,491 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:18:08,491 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:18:08,491 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:18:08,492 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:18:08,511 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2020-11-28 03:18:08,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:18:08,518 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:08,519 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 03:18:08,519 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:08,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:08,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1946356456, now seen corresponding path program 1 times [2020-11-28 03:18:08,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:08,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398456848] [2020-11-28 03:18:08,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:08,911 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 03:18:08,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398456848] [2020-11-28 03:18:08,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:08,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:18:08,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256582344] [2020-11-28 03:18:08,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:18:08,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:08,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:18:08,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:18:08,931 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 2 states. [2020-11-28 03:18:08,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:08,962 INFO L93 Difference]: Finished difference Result 247 states and 374 transitions. [2020-11-28 03:18:08,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:18:08,963 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:18:08,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:08,975 INFO L225 Difference]: With dead ends: 247 [2020-11-28 03:18:08,975 INFO L226 Difference]: Without dead ends: 121 [2020-11-28 03:18:08,980 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 03:18:08,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-11-28 03:18:09,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2020-11-28 03:18:09,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-11-28 03:18:09,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2020-11-28 03:18:09,030 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2020-11-28 03:18:09,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:09,030 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2020-11-28 03:18:09,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:18:09,030 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2020-11-28 03:18:09,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:18:09,032 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:09,032 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 03:18:09,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:18:09,033 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:09,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:09,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1437580087, now seen corresponding path program 1 times [2020-11-28 03:18:09,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:09,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235451647] [2020-11-28 03:18:09,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:09,141 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 03:18:09,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235451647] [2020-11-28 03:18:09,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:09,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:18:09,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866278028] [2020-11-28 03:18:09,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:09,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:09,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:09,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:09,146 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand 3 states. [2020-11-28 03:18:09,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:09,172 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2020-11-28 03:18:09,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:09,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:18:09,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:09,176 INFO L225 Difference]: With dead ends: 121 [2020-11-28 03:18:09,176 INFO L226 Difference]: Without dead ends: 51 [2020-11-28 03:18:09,177 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 03:18:09,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-28 03:18:09,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-28 03:18:09,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-28 03:18:09,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2020-11-28 03:18:09,185 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2020-11-28 03:18:09,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:09,185 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2020-11-28 03:18:09,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:09,186 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2020-11-28 03:18:09,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:18:09,191 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:09,191 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 03:18:09,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:18:09,193 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:09,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:09,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1538545843, now seen corresponding path program 1 times [2020-11-28 03:18:09,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:09,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003609673] [2020-11-28 03:18:09,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:09,366 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 03:18:09,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003609673] [2020-11-28 03:18:09,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:09,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:18:09,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895565472] [2020-11-28 03:18:09,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:18:09,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:09,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:18:09,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:18:09,370 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 6 states. [2020-11-28 03:18:09,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:09,623 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2020-11-28 03:18:09,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:18:09,625 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-28 03:18:09,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:09,627 INFO L225 Difference]: With dead ends: 166 [2020-11-28 03:18:09,627 INFO L226 Difference]: Without dead ends: 121 [2020-11-28 03:18:09,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:18:09,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-11-28 03:18:09,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2020-11-28 03:18:09,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 03:18:09,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2020-11-28 03:18:09,653 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 24 [2020-11-28 03:18:09,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:09,654 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2020-11-28 03:18:09,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:18:09,654 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2020-11-28 03:18:09,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:18:09,655 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:09,656 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 03:18:09,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:18:09,656 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:09,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:09,657 INFO L82 PathProgramCache]: Analyzing trace with hash -560581361, now seen corresponding path program 1 times [2020-11-28 03:18:09,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:09,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725433414] [2020-11-28 03:18:09,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:09,734 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 03:18:09,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725433414] [2020-11-28 03:18:09,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:09,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:18:09,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776307632] [2020-11-28 03:18:09,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:18:09,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:09,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:18:09,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:18:09,737 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand 3 states. [2020-11-28 03:18:09,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:09,815 INFO L93 Difference]: Finished difference Result 161 states and 239 transitions. [2020-11-28 03:18:09,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:18:09,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-28 03:18:09,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:09,817 INFO L225 Difference]: With dead ends: 161 [2020-11-28 03:18:09,817 INFO L226 Difference]: Without dead ends: 95 [2020-11-28 03:18:09,818 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 [2020-11-28 03:18:09,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-11-28 03:18:09,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2020-11-28 03:18:09,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-28 03:18:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2020-11-28 03:18:09,836 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 26 [2020-11-28 03:18:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:09,836 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2020-11-28 03:18:09,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:18:09,836 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2020-11-28 03:18:09,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:18:09,837 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:09,838 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 03:18:09,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:18:09,838 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:09,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:09,839 INFO L82 PathProgramCache]: Analyzing trace with hash 364943842, now seen corresponding path program 1 times [2020-11-28 03:18:09,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:09,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190067170] [2020-11-28 03:18:09,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:09,992 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 03:18:09,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190067170] [2020-11-28 03:18:09,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:09,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:18:09,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821412697] [2020-11-28 03:18:09,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:18:09,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:09,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:18:09,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:18:09,995 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand 5 states. [2020-11-28 03:18:10,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:10,207 INFO L93 Difference]: Finished difference Result 482 states and 707 transitions. [2020-11-28 03:18:10,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:18:10,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 03:18:10,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:10,211 INFO L225 Difference]: With dead ends: 482 [2020-11-28 03:18:10,211 INFO L226 Difference]: Without dead ends: 395 [2020-11-28 03:18:10,214 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 03:18:10,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-11-28 03:18:10,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 158. [2020-11-28 03:18:10,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-11-28 03:18:10,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 221 transitions. [2020-11-28 03:18:10,255 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 221 transitions. Word has length 27 [2020-11-28 03:18:10,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:10,255 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 221 transitions. [2020-11-28 03:18:10,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:18:10,256 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 221 transitions. [2020-11-28 03:18:10,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:18:10,257 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:10,258 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] [2020-11-28 03:18:10,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:18:10,258 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:10,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:10,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1335319900, now seen corresponding path program 1 times [2020-11-28 03:18:10,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:10,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846898132] [2020-11-28 03:18:10,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:18:10,357 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:18:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:18:10,422 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:18:10,464 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:18:10,464 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:18:10,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:18:10,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:18:10 BoogieIcfgContainer [2020-11-28 03:18:10,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:18:10,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:18:10,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:18:10,557 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:18:10,557 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:08" (3/4) ... [2020-11-28 03:18:10,560 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:18:10,661 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9c94035b-a5b4-425c-87c7-371240886328/bin/uautomizer/witness.graphml [2020-11-28 03:18:10,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:18:10,668 INFO L168 Benchmark]: Toolchain (without parser) took 4275.90 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 74.4 MB in the beginning and 63.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:10,668 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 102.8 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 45.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:10,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.20 ms. Allocated memory is still 102.8 MB. Free memory was 74.2 MB in the beginning and 68.7 MB in the end (delta: 5.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:10,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.17 ms. Allocated memory is still 102.8 MB. Free memory was 68.7 MB in the beginning and 64.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:10,670 INFO L168 Benchmark]: Boogie Preprocessor took 46.39 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 62.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:10,671 INFO L168 Benchmark]: RCFGBuilder took 1205.81 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 62.4 MB in the beginning and 60.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:10,671 INFO L168 Benchmark]: TraceAbstraction took 2140.66 ms. Allocated memory is still 123.7 MB. Free memory was 59.6 MB in the beginning and 75.1 MB in the end (delta: -15.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:10,672 INFO L168 Benchmark]: Witness Printer took 105.36 ms. Allocated memory is still 123.7 MB. Free memory was 75.1 MB in the beginning and 63.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:10,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 102.8 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 45.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 690.20 ms. Allocated memory is still 102.8 MB. Free memory was 74.2 MB in the beginning and 68.7 MB in the end (delta: 5.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.17 ms. Allocated memory is still 102.8 MB. Free memory was 68.7 MB in the beginning and 64.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.39 ms. Allocated memory is still 102.8 MB. Free memory was 64.9 MB in the beginning and 62.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1205.81 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 62.4 MB in the beginning and 60.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2140.66 ms. Allocated memory is still 123.7 MB. Free memory was 59.6 MB in the beginning and 75.1 MB in the end (delta: -15.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 105.36 ms. Allocated memory is still 123.7 MB. Free memory was 75.1 MB in the beginning and 63.6 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: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L50] int waterLevel = 1; [L51] int methaneLevelCritical = 0; [L227] int pumpRunning = 0; [L228] int systemActive = 1; [L475] int cleanupTimeShifts = 4; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L551] int retValue_acc ; [L552] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L600] int retValue_acc ; [L603] retValue_acc = 1 [L604] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L558] tmp = valid_product() [L560] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] int splverifierCounter ; [L158] int tmp ; [L159] int tmp___0 ; [L160] int tmp___1 ; [L161] int tmp___2 ; [L164] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L168] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L174] tmp = __VERIFIER_nondet_int() [L176] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] COND TRUE waterLevel < 2 [L69] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L184] tmp___0 = __VERIFIER_nondet_int() [L186] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L194] tmp___2 = __VERIFIER_nondet_int() [L196] COND FALSE !(\read(tmp___2)) [L200] tmp___1 = __VERIFIER_nondet_int() [L202] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L428] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L435] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L235] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L242] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L442] int tmp ; [L443] int tmp___0 ; [L444] int tmp___1 ; [L89] int retValue_acc ; [L92] retValue_acc = methaneLevelCritical [L93] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L448] tmp = isMethaneLevelCritical() [L450] COND FALSE !(\read(tmp)) [L121] int retValue_acc ; [L124] retValue_acc = waterLevel [L125] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L454] tmp___0 = getWaterLevel() [L456] COND TRUE tmp___0 == 2 [L342] int retValue_acc ; [L345] retValue_acc = pumpRunning [L346] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L458] tmp___1 = isPumpRunning() [L460] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product51.cil.c", 3, "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, 128 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 517 SDtfs, 714 SDslu, 635 SDs, 0 SdLazy, 79 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred 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, 288 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5504 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...