./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product19.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_22840aa0-c331-4fce-963f-2e1f971803ea/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/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 ce5436eb539a2a8a335e304ce49accfb71554984 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:56:44,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:44,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:44,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:44,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:44,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:44,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:44,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:44,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:44,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:44,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:44,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:44,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:44,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:44,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:44,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:44,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:44,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:44,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:44,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:44,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:44,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:44,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:44,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:44,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:44,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:44,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:44,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:44,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:44,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:44,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:44,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:44,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:44,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:44,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:44,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:44,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:44,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:44,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:44,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:44,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:44,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:56:44,291 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:44,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:44,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:44,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:44,295 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:44,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:44,296 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:44,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:44,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:44,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:44,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:44,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:44,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:44,299 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:44,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:44,300 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:44,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:44,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:44,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:44,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:44,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:44,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:44,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:44,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:44,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:44,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:44,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:44,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:44,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:44,311 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_22840aa0-c331-4fce-963f-2e1f971803ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce5436eb539a2a8a335e304ce49accfb71554984 [2020-11-28 02:56:44,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:44,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:44,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:44,665 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:44,667 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:44,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2020-11-28 02:56:44,781 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/bin/uautomizer/data/4b8f560ea/1bd32b5bdb5446538864d0b95f591a74/FLAG7664497a6 [2020-11-28 02:56:45,350 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:45,351 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2020-11-28 02:56:45,371 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/bin/uautomizer/data/4b8f560ea/1bd32b5bdb5446538864d0b95f591a74/FLAG7664497a6 [2020-11-28 02:56:45,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/bin/uautomizer/data/4b8f560ea/1bd32b5bdb5446538864d0b95f591a74 [2020-11-28 02:56:45,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:45,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:45,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:45,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:45,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:45,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:45" (1/1) ... [2020-11-28 02:56:45,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69cc1aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:45, skipping insertion in model container [2020-11-28 02:56:45,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:45" (1/1) ... [2020-11-28 02:56:45,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:45,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:46,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:46,134 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:46,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:46,315 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:46,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:46 WrapperNode [2020-11-28 02:56:46,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:46,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:46,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:46,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:46,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:46" (1/1) ... [2020-11-28 02:56:46,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:46" (1/1) ... [2020-11-28 02:56:46,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:46,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:46,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:46,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:46,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:46" (1/1) ... [2020-11-28 02:56:46,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:46" (1/1) ... [2020-11-28 02:56:46,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:46" (1/1) ... [2020-11-28 02:56:46,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:46" (1/1) ... [2020-11-28 02:56:46,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:46" (1/1) ... [2020-11-28 02:56:46,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:46" (1/1) ... [2020-11-28 02:56:46,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:46" (1/1) ... [2020-11-28 02:56:46,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:46,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:46,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:46,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:46,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/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 02:56:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:56:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:47,564 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:47,565 INFO L298 CfgBuilder]: Removed 112 assume(true) statements. [2020-11-28 02:56:47,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:47 BoogieIcfgContainer [2020-11-28 02:56:47,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:47,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:47,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:47,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:47,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:45" (1/3) ... [2020-11-28 02:56:47,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe7d16e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:47, skipping insertion in model container [2020-11-28 02:56:47,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:46" (2/3) ... [2020-11-28 02:56:47,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe7d16e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:47, skipping insertion in model container [2020-11-28 02:56:47,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:47" (3/3) ... [2020-11-28 02:56:47,581 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c [2020-11-28 02:56:47,594 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:47,600 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 02:56:47,613 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 02:56:47,649 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:47,649 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:47,650 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:47,650 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:47,650 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:47,650 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:47,650 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:47,650 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:47,679 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2020-11-28 02:56:47,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 02:56:47,686 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:47,687 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 02:56:47,688 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:47,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:47,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1234337188, now seen corresponding path program 1 times [2020-11-28 02:56:47,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:47,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905562196] [2020-11-28 02:56:47,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:48,036 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 02:56:48,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905562196] [2020-11-28 02:56:48,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:48,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:48,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663743913] [2020-11-28 02:56:48,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 02:56:48,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:48,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:56:48,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:56:48,069 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2020-11-28 02:56:48,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:48,125 INFO L93 Difference]: Finished difference Result 163 states and 242 transitions. [2020-11-28 02:56:48,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:56:48,127 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 02:56:48,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:48,152 INFO L225 Difference]: With dead ends: 163 [2020-11-28 02:56:48,152 INFO L226 Difference]: Without dead ends: 79 [2020-11-28 02:56:48,156 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 02:56:48,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-11-28 02:56:48,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-11-28 02:56:48,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-28 02:56:48,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2020-11-28 02:56:48,222 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2020-11-28 02:56:48,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:48,222 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2020-11-28 02:56:48,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 02:56:48,223 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2020-11-28 02:56:48,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 02:56:48,225 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:48,226 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 02:56:48,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:56:48,227 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:48,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:48,230 INFO L82 PathProgramCache]: Analyzing trace with hash -2145367941, now seen corresponding path program 1 times [2020-11-28 02:56:48,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:48,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305296472] [2020-11-28 02:56:48,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:48,447 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 02:56:48,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305296472] [2020-11-28 02:56:48,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:48,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:56:48,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204308711] [2020-11-28 02:56:48,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:48,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:48,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:48,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:48,450 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand 3 states. [2020-11-28 02:56:48,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:48,467 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2020-11-28 02:56:48,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:48,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 02:56:48,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:48,471 INFO L225 Difference]: With dead ends: 79 [2020-11-28 02:56:48,471 INFO L226 Difference]: Without dead ends: 37 [2020-11-28 02:56:48,473 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 02:56:48,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-28 02:56:48,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-28 02:56:48,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-28 02:56:48,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2020-11-28 02:56:48,486 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2020-11-28 02:56:48,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:48,487 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2020-11-28 02:56:48,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:48,488 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-11-28 02:56:48,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 02:56:48,492 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:48,492 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 02:56:48,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:56:48,493 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:48,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:48,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1444562447, now seen corresponding path program 1 times [2020-11-28 02:56:48,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:48,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996477529] [2020-11-28 02:56:48,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:48,634 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 02:56:48,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996477529] [2020-11-28 02:56:48,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:48,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:48,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974123644] [2020-11-28 02:56:48,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:56:48,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:48,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:56:48,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:56:48,647 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2020-11-28 02:56:48,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:48,678 INFO L93 Difference]: Finished difference Result 99 states and 144 transitions. [2020-11-28 02:56:48,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:56:48,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 02:56:48,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:48,681 INFO L225 Difference]: With dead ends: 99 [2020-11-28 02:56:48,682 INFO L226 Difference]: Without dead ends: 68 [2020-11-28 02:56:48,684 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 02:56:48,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-28 02:56:48,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2020-11-28 02:56:48,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-28 02:56:48,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 93 transitions. [2020-11-28 02:56:48,705 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 93 transitions. Word has length 24 [2020-11-28 02:56:48,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:48,706 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 93 transitions. [2020-11-28 02:56:48,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:56:48,707 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 93 transitions. [2020-11-28 02:56:48,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 02:56:48,708 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:48,710 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 02:56:48,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:56:48,710 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:48,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:48,711 INFO L82 PathProgramCache]: Analyzing trace with hash -685298349, now seen corresponding path program 1 times [2020-11-28 02:56:48,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:48,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679850425] [2020-11-28 02:56:48,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:48,821 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 02:56:48,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679850425] [2020-11-28 02:56:48,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:48,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:56:48,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659342339] [2020-11-28 02:56:48,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:48,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:48,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:48,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:48,823 INFO L87 Difference]: Start difference. First operand 64 states and 93 transitions. Second operand 5 states. [2020-11-28 02:56:48,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:48,965 INFO L93 Difference]: Finished difference Result 348 states and 530 transitions. [2020-11-28 02:56:48,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 02:56:48,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-28 02:56:48,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:48,969 INFO L225 Difference]: With dead ends: 348 [2020-11-28 02:56:48,969 INFO L226 Difference]: Without dead ends: 290 [2020-11-28 02:56:48,970 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 02:56:48,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-11-28 02:56:48,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 116. [2020-11-28 02:56:48,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-28 02:56:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 167 transitions. [2020-11-28 02:56:48,992 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 167 transitions. Word has length 25 [2020-11-28 02:56:48,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:48,993 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 167 transitions. [2020-11-28 02:56:48,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:48,993 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 167 transitions. [2020-11-28 02:56:48,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 02:56:48,995 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:48,995 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 02:56:48,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:56:48,995 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:48,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:48,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1650359957, now seen corresponding path program 1 times [2020-11-28 02:56:48,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:48,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849856706] [2020-11-28 02:56:48,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:49,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:49,190 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:49,250 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:56:49,250 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:56:49,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:56:49,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:49 BoogieIcfgContainer [2020-11-28 02:56:49,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:49,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:49,375 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:49,375 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:49,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:47" (3/4) ... [2020-11-28 02:56:49,378 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:56:49,486 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_22840aa0-c331-4fce-963f-2e1f971803ea/bin/uautomizer/witness.graphml [2020-11-28 02:56:49,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:49,488 INFO L168 Benchmark]: Toolchain (without parser) took 3829.48 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 74.6 MB in the beginning and 52.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:49,489 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 111.1 MB. Free memory was 83.3 MB in the beginning and 83.3 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:49,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.52 ms. Allocated memory is still 111.1 MB. Free memory was 74.5 MB in the beginning and 76.4 MB in the end (delta: -1.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:49,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.14 ms. Allocated memory is still 111.1 MB. Free memory was 76.4 MB in the beginning and 73.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:49,495 INFO L168 Benchmark]: Boogie Preprocessor took 72.92 ms. Allocated memory is still 111.1 MB. Free memory was 73.3 MB in the beginning and 71.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:49,495 INFO L168 Benchmark]: RCFGBuilder took 1085.35 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 70.7 MB in the beginning and 104.4 MB in the end (delta: -33.8 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:49,496 INFO L168 Benchmark]: TraceAbstraction took 1802.73 ms. Allocated memory is still 146.8 MB. Free memory was 104.4 MB in the beginning and 63.3 MB in the end (delta: 41.1 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:49,496 INFO L168 Benchmark]: Witness Printer took 111.89 ms. Allocated memory is still 146.8 MB. Free memory was 63.3 MB in the beginning and 52.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:49,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 111.1 MB. Free memory was 83.3 MB in the beginning and 83.3 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 658.52 ms. Allocated memory is still 111.1 MB. Free memory was 74.5 MB in the beginning and 76.4 MB in the end (delta: -1.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.14 ms. Allocated memory is still 111.1 MB. Free memory was 76.4 MB in the beginning and 73.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.92 ms. Allocated memory is still 111.1 MB. Free memory was 73.3 MB in the beginning and 71.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1085.35 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 70.7 MB in the beginning and 104.4 MB in the end (delta: -33.8 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1802.73 ms. Allocated memory is still 146.8 MB. Free memory was 104.4 MB in the beginning and 63.3 MB in the end (delta: 41.1 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. * Witness Printer took 111.89 ms. Allocated memory is still 146.8 MB. Free memory was 63.3 MB in the beginning and 52.8 MB in the end (delta: 10.5 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: [L295] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int cleanupTimeShifts = 4; [L596] int waterLevel = 1; [L597] int methaneLevelCritical = 0; [L755] int pumpRunning = 0; [L756] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L570] int retValue_acc ; [L571] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L577] tmp = valid_product() [L579] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L687] int splverifierCounter ; [L688] int tmp ; [L689] int tmp___0 ; [L690] int tmp___1 ; [L691] int tmp___2 ; [L694] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L696] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L698] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L704] tmp = __VERIFIER_nondet_int() [L706] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L614] COND TRUE waterLevel < 2 [L615] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L714] tmp___0 = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L724] tmp___2 = __VERIFIER_nondet_int() [L726] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L762] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L769] COND TRUE \read(systemActive) [L791] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L794] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L635] int retValue_acc ; [L638] retValue_acc = methaneLevelCritical [L639] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L667] int retValue_acc ; [L670] retValue_acc = waterLevel [L671] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 [L843] int retValue_acc ; [L846] retValue_acc = pumpRunning [L847] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L109] tmp___1 = isPumpRunning() [L111] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product19.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 299 SDtfs, 299 SDslu, 246 SDs, 0 SdLazy, 46 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 178 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3488 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...