./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.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_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/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 23682bb018ca337818baa43f0543337e0e1afa6d .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:19:40,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:40,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:41,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:41,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:41,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:41,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:41,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:41,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:41,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:41,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:41,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:41,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:41,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:41,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:41,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:41,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:41,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:41,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:41,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:41,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:41,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:41,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:41,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:41,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:41,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:41,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:41,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:41,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:41,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:41,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:41,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:41,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:41,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:41,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:41,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:41,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:41,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:41,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:41,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:41,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:41,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:19:41,201 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:41,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:41,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:41,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:41,203 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:41,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:41,203 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:41,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:41,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:41,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:41,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:19:41,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:19:41,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:19:41,205 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:41,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:41,205 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:41,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:19:41,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:41,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:41,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:19:41,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:19:41,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:19:41,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:41,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:19:41,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:19:41,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:41,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:19:41,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:19:41,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:41,209 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_6d23eb9a-35a4-47b7-9087-478c4abc9a98/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23682bb018ca337818baa43f0543337e0e1afa6d [2020-11-28 03:19:41,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:41,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:41,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:41,502 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:41,504 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:41,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2020-11-28 03:19:41,600 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/data/82847c563/636a4a4a1e8d477f99f58729b7dad5aa/FLAGf8bcf1a58 [2020-11-28 03:19:42,062 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:42,062 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2020-11-28 03:19:42,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/data/82847c563/636a4a4a1e8d477f99f58729b7dad5aa/FLAGf8bcf1a58 [2020-11-28 03:19:42,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/data/82847c563/636a4a4a1e8d477f99f58729b7dad5aa [2020-11-28 03:19:42,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:42,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:42,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:42,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:42,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:42,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:42" (1/1) ... [2020-11-28 03:19:42,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230299de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:42, skipping insertion in model container [2020-11-28 03:19:42,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:42" (1/1) ... [2020-11-28 03:19:42,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:42,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:43,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:43,045 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:43,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:43,288 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:43,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:43 WrapperNode [2020-11-28 03:19:43,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:43,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:43,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:43,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:43,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:43" (1/1) ... [2020-11-28 03:19:43,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:43" (1/1) ... [2020-11-28 03:19:43,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:43,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:43,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:43,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:43,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:43" (1/1) ... [2020-11-28 03:19:43,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:43" (1/1) ... [2020-11-28 03:19:43,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:43" (1/1) ... [2020-11-28 03:19:43,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:43" (1/1) ... [2020-11-28 03:19:43,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:43" (1/1) ... [2020-11-28 03:19:43,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:43" (1/1) ... [2020-11-28 03:19:43,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:43" (1/1) ... [2020-11-28 03:19:43,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:43,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:43,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:43,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:43,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/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 03:19:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:19:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:45,334 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:45,337 INFO L298 CfgBuilder]: Removed 204 assume(true) statements. [2020-11-28 03:19:45,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:45 BoogieIcfgContainer [2020-11-28 03:19:45,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:45,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:19:45,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:19:45,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:19:45,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:42" (1/3) ... [2020-11-28 03:19:45,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a90db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:45, skipping insertion in model container [2020-11-28 03:19:45,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:43" (2/3) ... [2020-11-28 03:19:45,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a90db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:45, skipping insertion in model container [2020-11-28 03:19:45,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:45" (3/3) ... [2020-11-28 03:19:45,363 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-11-28 03:19:45,387 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:19:45,392 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:19:45,409 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:19:45,448 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:19:45,448 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:19:45,449 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:19:45,449 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:45,449 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:45,449 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:19:45,449 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:45,450 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:19:45,474 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2020-11-28 03:19:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:19:45,483 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:45,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:45,485 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:45,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:45,497 INFO L82 PathProgramCache]: Analyzing trace with hash -240807826, now seen corresponding path program 1 times [2020-11-28 03:19:45,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:45,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479372198] [2020-11-28 03:19:45,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:45,855 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 03:19:45,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479372198] [2020-11-28 03:19:45,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:45,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:19:45,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698014908] [2020-11-28 03:19:45,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:19:45,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:45,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:19:45,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:19:45,891 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 2 states. [2020-11-28 03:19:45,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:45,950 INFO L93 Difference]: Finished difference Result 259 states and 386 transitions. [2020-11-28 03:19:45,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:19:45,953 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 03:19:45,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:45,968 INFO L225 Difference]: With dead ends: 259 [2020-11-28 03:19:45,968 INFO L226 Difference]: Without dead ends: 127 [2020-11-28 03:19:45,974 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 03:19:45,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-28 03:19:46,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-11-28 03:19:46,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-11-28 03:19:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2020-11-28 03:19:46,037 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 16 [2020-11-28 03:19:46,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:46,037 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2020-11-28 03:19:46,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:19:46,038 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2020-11-28 03:19:46,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:19:46,040 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:46,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:46,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:19:46,041 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:46,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:46,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1287564723, now seen corresponding path program 1 times [2020-11-28 03:19:46,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:46,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445197754] [2020-11-28 03:19:46,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:46,295 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 03:19:46,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445197754] [2020-11-28 03:19:46,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:46,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:19:46,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431493839] [2020-11-28 03:19:46,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:46,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:46,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:46,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:46,299 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand 3 states. [2020-11-28 03:19:46,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:46,325 INFO L93 Difference]: Finished difference Result 127 states and 183 transitions. [2020-11-28 03:19:46,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:46,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:19:46,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:46,328 INFO L225 Difference]: With dead ends: 127 [2020-11-28 03:19:46,328 INFO L226 Difference]: Without dead ends: 53 [2020-11-28 03:19:46,329 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 03:19:46,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-28 03:19:46,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-28 03:19:46,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-28 03:19:46,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2020-11-28 03:19:46,338 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2020-11-28 03:19:46,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:46,339 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2020-11-28 03:19:46,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:46,339 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2020-11-28 03:19:46,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:19:46,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:46,341 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] [2020-11-28 03:19:46,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:19:46,342 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:46,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:46,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1189907750, now seen corresponding path program 1 times [2020-11-28 03:19:46,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:46,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115045840] [2020-11-28 03:19:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:46,544 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 03:19:46,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115045840] [2020-11-28 03:19:46,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:46,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:19:46,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083556393] [2020-11-28 03:19:46,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:19:46,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:46,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:19:46,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:46,548 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 5 states. [2020-11-28 03:19:46,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:46,640 INFO L93 Difference]: Finished difference Result 123 states and 180 transitions. [2020-11-28 03:19:46,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:19:46,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-28 03:19:46,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:46,642 INFO L225 Difference]: With dead ends: 123 [2020-11-28 03:19:46,642 INFO L226 Difference]: Without dead ends: 76 [2020-11-28 03:19:46,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 03:19:46,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-28 03:19:46,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2020-11-28 03:19:46,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 03:19:46,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 105 transitions. [2020-11-28 03:19:46,655 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 105 transitions. Word has length 22 [2020-11-28 03:19:46,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:46,655 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 105 transitions. [2020-11-28 03:19:46,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:19:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 105 transitions. [2020-11-28 03:19:46,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:19:46,656 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:46,656 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] [2020-11-28 03:19:46,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:19:46,657 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:46,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:46,658 INFO L82 PathProgramCache]: Analyzing trace with hash 752688312, now seen corresponding path program 1 times [2020-11-28 03:19:46,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:46,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971056777] [2020-11-28 03:19:46,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:46,773 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 03:19:46,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971056777] [2020-11-28 03:19:46,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:46,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:19:46,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774762320] [2020-11-28 03:19:46,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:19:46,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:46,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:19:46,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:19:46,776 INFO L87 Difference]: Start difference. First operand 72 states and 105 transitions. Second operand 3 states. [2020-11-28 03:19:46,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:46,841 INFO L93 Difference]: Finished difference Result 159 states and 234 transitions. [2020-11-28 03:19:46,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:46,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:19:46,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:46,843 INFO L225 Difference]: With dead ends: 159 [2020-11-28 03:19:46,843 INFO L226 Difference]: Without dead ends: 93 [2020-11-28 03:19:46,844 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 03:19:46,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-28 03:19:46,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-11-28 03:19:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-11-28 03:19:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2020-11-28 03:19:46,859 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 24 [2020-11-28 03:19:46,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:46,859 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2020-11-28 03:19:46,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:19:46,859 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2020-11-28 03:19:46,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:19:46,861 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:46,861 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] [2020-11-28 03:19:46,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:19:46,861 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:46,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:46,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1744683281, now seen corresponding path program 1 times [2020-11-28 03:19:46,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:46,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733496515] [2020-11-28 03:19:46,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:46,992 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 03:19:46,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733496515] [2020-11-28 03:19:46,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:46,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 03:19:46,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388122215] [2020-11-28 03:19:46,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:19:46,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:46,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:19:46,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:19:46,995 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 8 states. [2020-11-28 03:19:47,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:47,500 INFO L93 Difference]: Finished difference Result 585 states and 851 transitions. [2020-11-28 03:19:47,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 03:19:47,501 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-28 03:19:47,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:47,505 INFO L225 Difference]: With dead ends: 585 [2020-11-28 03:19:47,505 INFO L226 Difference]: Without dead ends: 500 [2020-11-28 03:19:47,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-28 03:19:47,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-11-28 03:19:47,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 227. [2020-11-28 03:19:47,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-11-28 03:19:47,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 316 transitions. [2020-11-28 03:19:47,575 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 316 transitions. Word has length 25 [2020-11-28 03:19:47,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:47,576 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 316 transitions. [2020-11-28 03:19:47,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:19:47,576 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 316 transitions. [2020-11-28 03:19:47,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-28 03:19:47,584 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:47,584 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:47,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:19:47,584 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:47,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1656950715, now seen corresponding path program 1 times [2020-11-28 03:19:47,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:47,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284885560] [2020-11-28 03:19:47,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:47,694 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:47,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284885560] [2020-11-28 03:19:47,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114092683] [2020-11-28 03:19:47,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:19:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:47,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:19:47,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:47,957 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:47,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:19:47,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-11-28 03:19:47,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838025358] [2020-11-28 03:19:47,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:19:47,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:47,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:19:47,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:47,966 INFO L87 Difference]: Start difference. First operand 227 states and 316 transitions. Second operand 4 states. [2020-11-28 03:19:48,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:48,177 INFO L93 Difference]: Finished difference Result 508 states and 721 transitions. [2020-11-28 03:19:48,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:19:48,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-11-28 03:19:48,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:48,185 INFO L225 Difference]: With dead ends: 508 [2020-11-28 03:19:48,185 INFO L226 Difference]: Without dead ends: 349 [2020-11-28 03:19:48,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:48,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-11-28 03:19:48,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 337. [2020-11-28 03:19:48,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-11-28 03:19:48,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 475 transitions. [2020-11-28 03:19:48,238 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 475 transitions. Word has length 41 [2020-11-28 03:19:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:48,239 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 475 transitions. [2020-11-28 03:19:48,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:19:48,239 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 475 transitions. [2020-11-28 03:19:48,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:19:48,241 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:48,241 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2020-11-28 03:19:48,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-28 03:19:48,464 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:48,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:48,465 INFO L82 PathProgramCache]: Analyzing trace with hash 720937928, now seen corresponding path program 1 times [2020-11-28 03:19:48,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:48,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269476217] [2020-11-28 03:19:48,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:48,600 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:19:48,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269476217] [2020-11-28 03:19:48,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:48,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:19:48,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254740992] [2020-11-28 03:19:48,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:19:48,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:48,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:19:48,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:48,608 INFO L87 Difference]: Start difference. First operand 337 states and 475 transitions. Second operand 5 states. [2020-11-28 03:19:48,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:48,817 INFO L93 Difference]: Finished difference Result 1043 states and 1460 transitions. [2020-11-28 03:19:48,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:19:48,818 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-11-28 03:19:48,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:48,828 INFO L225 Difference]: With dead ends: 1043 [2020-11-28 03:19:48,828 INFO L226 Difference]: Without dead ends: 712 [2020-11-28 03:19:48,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:19:48,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2020-11-28 03:19:48,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 358. [2020-11-28 03:19:48,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-11-28 03:19:48,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 496 transitions. [2020-11-28 03:19:48,894 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 496 transitions. Word has length 51 [2020-11-28 03:19:48,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:48,895 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 496 transitions. [2020-11-28 03:19:48,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:19:48,895 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 496 transitions. [2020-11-28 03:19:48,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:19:48,897 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:48,897 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2020-11-28 03:19:48,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:19:48,899 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:48,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:48,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1422537802, now seen corresponding path program 1 times [2020-11-28 03:19:48,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:48,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515349435] [2020-11-28 03:19:48,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:49,004 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:19:49,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515349435] [2020-11-28 03:19:49,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:49,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:19:49,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361888379] [2020-11-28 03:19:49,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:19:49,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:49,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:19:49,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:19:49,008 INFO L87 Difference]: Start difference. First operand 358 states and 496 transitions. Second operand 4 states. [2020-11-28 03:19:49,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:49,127 INFO L93 Difference]: Finished difference Result 832 states and 1157 transitions. [2020-11-28 03:19:49,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:19:49,128 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-11-28 03:19:49,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:49,133 INFO L225 Difference]: With dead ends: 832 [2020-11-28 03:19:49,133 INFO L226 Difference]: Without dead ends: 480 [2020-11-28 03:19:49,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:49,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-11-28 03:19:49,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 312. [2020-11-28 03:19:49,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-11-28 03:19:49,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 428 transitions. [2020-11-28 03:19:49,183 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 428 transitions. Word has length 51 [2020-11-28 03:19:49,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:49,183 INFO L481 AbstractCegarLoop]: Abstraction has 312 states and 428 transitions. [2020-11-28 03:19:49,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:19:49,184 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 428 transitions. [2020-11-28 03:19:49,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-28 03:19:49,186 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:49,186 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2020-11-28 03:19:49,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:19:49,187 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:49,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:49,187 INFO L82 PathProgramCache]: Analyzing trace with hash 572788494, now seen corresponding path program 1 times [2020-11-28 03:19:49,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:49,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752936634] [2020-11-28 03:19:49,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:49,336 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-28 03:19:49,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752936634] [2020-11-28 03:19:49,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:49,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:19:49,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365909703] [2020-11-28 03:19:49,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:19:49,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:49,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:19:49,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:19:49,340 INFO L87 Difference]: Start difference. First operand 312 states and 428 transitions. Second operand 6 states. [2020-11-28 03:19:49,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:49,780 INFO L93 Difference]: Finished difference Result 1822 states and 2538 transitions. [2020-11-28 03:19:49,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:19:49,781 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-11-28 03:19:49,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:49,793 INFO L225 Difference]: With dead ends: 1822 [2020-11-28 03:19:49,793 INFO L226 Difference]: Without dead ends: 1516 [2020-11-28 03:19:49,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:19:49,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2020-11-28 03:19:49,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 616. [2020-11-28 03:19:49,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2020-11-28 03:19:49,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 833 transitions. [2020-11-28 03:19:49,900 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 833 transitions. Word has length 52 [2020-11-28 03:19:49,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:49,903 INFO L481 AbstractCegarLoop]: Abstraction has 616 states and 833 transitions. [2020-11-28 03:19:49,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:19:49,903 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 833 transitions. [2020-11-28 03:19:49,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-28 03:19:49,909 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:49,910 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2020-11-28 03:19:49,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:19:49,912 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:49,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:49,913 INFO L82 PathProgramCache]: Analyzing trace with hash -118115538, now seen corresponding path program 1 times [2020-11-28 03:19:49,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:49,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107073049] [2020-11-28 03:19:49,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:50,077 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:50,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107073049] [2020-11-28 03:19:50,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979040970] [2020-11-28 03:19:50,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:19:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:50,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:19:50,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:50,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:19:50,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-11-28 03:19:50,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138146140] [2020-11-28 03:19:50,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:19:50,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:50,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:19:50,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:19:50,384 INFO L87 Difference]: Start difference. First operand 616 states and 833 transitions. Second operand 8 states. [2020-11-28 03:19:50,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:50,958 INFO L93 Difference]: Finished difference Result 1648 states and 2217 transitions. [2020-11-28 03:19:50,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:19:50,959 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-11-28 03:19:50,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:51,003 INFO L225 Difference]: With dead ends: 1648 [2020-11-28 03:19:51,003 INFO L226 Difference]: Without dead ends: 1122 [2020-11-28 03:19:51,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:19:51,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2020-11-28 03:19:51,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 540. [2020-11-28 03:19:51,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2020-11-28 03:19:51,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 714 transitions. [2020-11-28 03:19:51,125 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 714 transitions. Word has length 53 [2020-11-28 03:19:51,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:51,127 INFO L481 AbstractCegarLoop]: Abstraction has 540 states and 714 transitions. [2020-11-28 03:19:51,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:19:51,127 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 714 transitions. [2020-11-28 03:19:51,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-11-28 03:19:51,130 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:51,130 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:19:51,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-28 03:19:51,357 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:51,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:51,358 INFO L82 PathProgramCache]: Analyzing trace with hash -346129302, now seen corresponding path program 2 times [2020-11-28 03:19:51,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:51,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746437616] [2020-11-28 03:19:51,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:51,468 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:51,566 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:51,647 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:51,648 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:19:51,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:19:51,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:19:51 BoogieIcfgContainer [2020-11-28 03:19:51,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:19:51,879 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:51,879 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:51,879 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:51,880 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:45" (3/4) ... [2020-11-28 03:19:51,883 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:19:52,161 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6d23eb9a-35a4-47b7-9087-478c4abc9a98/bin/uautomizer/witness.graphml [2020-11-28 03:19:52,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:52,164 INFO L168 Benchmark]: Toolchain (without parser) took 9730.34 ms. Allocated memory was 75.5 MB in the beginning and 169.9 MB in the end (delta: 94.4 MB). Free memory was 41.2 MB in the beginning and 123.6 MB in the end (delta: -82.5 MB). Peak memory consumption was 85.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:52,165 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 75.5 MB. Free memory was 48.8 MB in the beginning and 48.8 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:52,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 855.85 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 40.9 MB in the beginning and 59.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:52,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 136.97 ms. Allocated memory is still 92.3 MB. Free memory was 59.0 MB in the beginning and 54.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:52,167 INFO L168 Benchmark]: Boogie Preprocessor took 61.12 ms. Allocated memory is still 92.3 MB. Free memory was 54.8 MB in the beginning and 52.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:52,168 INFO L168 Benchmark]: RCFGBuilder took 1855.04 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 52.0 MB in the beginning and 81.7 MB in the end (delta: -29.7 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:52,169 INFO L168 Benchmark]: TraceAbstraction took 6529.37 ms. Allocated memory was 111.1 MB in the beginning and 169.9 MB in the end (delta: 58.7 MB). Free memory was 81.3 MB in the beginning and 64.4 MB in the end (delta: 16.9 MB). Peak memory consumption was 76.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:52,169 INFO L168 Benchmark]: Witness Printer took 282.73 ms. Allocated memory is still 169.9 MB. Free memory was 64.4 MB in the beginning and 123.6 MB in the end (delta: -59.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:52,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 75.5 MB. Free memory was 48.8 MB in the beginning and 48.8 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 855.85 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 40.9 MB in the beginning and 59.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 136.97 ms. Allocated memory is still 92.3 MB. Free memory was 59.0 MB in the beginning and 54.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.12 ms. Allocated memory is still 92.3 MB. Free memory was 54.8 MB in the beginning and 52.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1855.04 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 52.0 MB in the beginning and 81.7 MB in the end (delta: -29.7 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6529.37 ms. Allocated memory was 111.1 MB in the beginning and 169.9 MB in the end (delta: 58.7 MB). Free memory was 81.3 MB in the beginning and 64.4 MB in the end (delta: 16.9 MB). Peak memory consumption was 76.7 MB. Max. memory is 16.1 GB. * Witness Printer took 282.73 ms. Allocated memory is still 169.9 MB. Free memory was 64.4 MB in the beginning and 123.6 MB in the end (delta: -59.2 MB). Peak memory consumption was 13.1 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: [L240] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L558] int pumpRunning = 0; [L559] int systemActive = 1; [L776] int waterLevel = 1; [L777] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] int retValue_acc ; [L528] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L965] int retValue_acc ; [L968] retValue_acc = 1 [L969] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L871] int splverifierCounter ; [L872] int tmp ; [L873] int tmp___0 ; [L874] int tmp___1 ; [L875] int tmp___2 ; [L878] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L882] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L888] tmp = __VERIFIER_nondet_int() [L890] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L794] COND TRUE waterLevel < 2 [L795] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND TRUE \read(tmp___2) [L771] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L565] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L572] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] COND FALSE !(\read(pumpRunning)) [L594] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] COND TRUE ! pumpRunning [L734] int retValue_acc ; [L735] int tmp ; [L736] int tmp___0 ; [L856] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L859] COND FALSE !(waterLevel < 2) [L863] retValue_acc = 0 [L864] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L740] tmp = isHighWaterSensorDry() [L742] COND FALSE !(\read(tmp)) [L745] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L747] retValue_acc = tmp___0 [L748] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] tmp = isHighWaterLevel() [L601] COND TRUE \read(tmp) [L653] int tmp ; [L678] int retValue_acc ; [L815] int retValue_acc ; [L818] retValue_acc = methaneLevelCritical [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L682] retValue_acc = isMethaneLevelCritical() [L684] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L657] tmp = isMethaneAlarm() [L659] COND FALSE !(\read(tmp)) [L648] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; [L47] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L882] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L888] tmp = __VERIFIER_nondet_int() [L890] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND TRUE \read(tmp___2) [L771] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L782] COND TRUE waterLevel > 0 [L783] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L572] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] COND TRUE \read(pumpRunning) [L678] int retValue_acc ; [L815] int retValue_acc ; [L818] retValue_acc = methaneLevelCritical [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L682] retValue_acc = isMethaneLevelCritical() [L684] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L625] tmp = isMethaneAlarm() [L627] COND FALSE !(\read(tmp)) [L594] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L597] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L46] int tmp ; [L47] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L882] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L888] tmp = __VERIFIER_nondet_int() [L890] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND TRUE \read(tmp___2) [L771] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L565] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L782] COND TRUE waterLevel > 0 [L783] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L572] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L623] COND TRUE \read(pumpRunning) [L678] int retValue_acc ; [L815] int retValue_acc ; [L818] retValue_acc = methaneLevelCritical [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L682] retValue_acc = isMethaneLevelCritical() [L684] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L625] tmp = isMethaneAlarm() [L627] COND FALSE !(\read(tmp)) [L594] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L597] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L46] int tmp ; [L47] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L51] tmp = getWaterLevel() [L53] COND TRUE tmp == 0 [L689] int retValue_acc ; [L692] retValue_acc = pumpRunning [L693] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product48.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 134 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.2s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1134 SDtfs, 2223 SDslu, 2206 SDs, 0 SdLazy, 311 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=616occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 2295 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 518 NumberOfCodeBlocks, 518 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 36462 SizeOfPredicates, 4 NumberOfNonLiveVariables, 825 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 89/100 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...