./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product08.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_48fc6241-205d-4e2e-ab3b-55047f2388c7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/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 5aa79e967971f371d7b4e44dc64a6773e8ce908a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2020-11-29 23:39:58,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:39:58,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:39:58,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:39:58,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:39:58,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:39:58,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:39:58,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:39:58,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:39:58,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:39:58,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:39:58,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:39:58,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:39:58,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:39:58,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:39:58,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:39:58,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:39:58,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:39:58,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:39:58,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:39:58,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:39:58,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:39:58,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:39:58,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:39:58,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:39:58,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:39:58,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:39:58,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:39:58,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:39:58,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:39:58,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:39:58,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:39:58,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:39:58,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:39:58,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:39:58,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:39:58,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:39:58,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:39:58,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:39:58,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:39:58,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:39:58,270 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:39:58,293 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:39:58,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:39:58,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:39:58,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:39:58,294 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:39:58,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:39:58,295 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:39:58,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:39:58,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:39:58,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:39:58,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:39:58,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:39:58,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:39:58,296 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:39:58,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:39:58,296 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:39:58,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:39:58,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:39:58,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:39:58,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:39:58,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:39:58,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:39:58,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:39:58,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:39:58,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:39:58,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:39:58,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:39:58,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:39:58,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:39:58,299 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_48fc6241-205d-4e2e-ab3b-55047f2388c7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5aa79e967971f371d7b4e44dc64a6773e8ce908a [2020-11-29 23:39:58,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:39:58,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:39:58,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:39:58,624 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:39:58,626 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:39:58,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2020-11-29 23:39:58,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/bin/uautomizer/data/b32b2b393/191c50d8963b4b8ea41f774099d4d2a6/FLAGba69cce69 [2020-11-29 23:39:59,283 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:39:59,284 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/sv-benchmarks/c/product-lines/minepump_spec3_product08.cil.c [2020-11-29 23:39:59,310 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/bin/uautomizer/data/b32b2b393/191c50d8963b4b8ea41f774099d4d2a6/FLAGba69cce69 [2020-11-29 23:39:59,615 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/bin/uautomizer/data/b32b2b393/191c50d8963b4b8ea41f774099d4d2a6 [2020-11-29 23:39:59,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:39:59,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:39:59,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:39:59,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:39:59,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:39:59,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:39:59" (1/1) ... [2020-11-29 23:39:59,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7943a16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:59, skipping insertion in model container [2020-11-29 23:39:59,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:39:59" (1/1) ... [2020-11-29 23:39:59,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:39:59,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:40:00,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:40:00,092 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:40:00,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:40:00,204 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:40:00,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:00 WrapperNode [2020-11-29 23:40:00,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:40:00,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:40:00,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:40:00,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:40:00,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:00" (1/1) ... [2020-11-29 23:40:00,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:00" (1/1) ... [2020-11-29 23:40:00,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:40:00,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:40:00,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:40:00,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:40:00,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:00" (1/1) ... [2020-11-29 23:40:00,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:00" (1/1) ... [2020-11-29 23:40:00,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:00" (1/1) ... [2020-11-29 23:40:00,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:00" (1/1) ... [2020-11-29 23:40:00,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:00" (1/1) ... [2020-11-29 23:40:00,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:00" (1/1) ... [2020-11-29 23:40:00,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:00" (1/1) ... [2020-11-29 23:40:00,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:40:00,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:40:00,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:40:00,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:40:00,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/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 [2020-11-29 23:40:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:40:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:40:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:40:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:40:01,374 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:40:01,374 INFO L298 CfgBuilder]: Removed 114 assume(true) statements. [2020-11-29 23:40:01,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:40:01 BoogieIcfgContainer [2020-11-29 23:40:01,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:40:01,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:40:01,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:40:01,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:40:01,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:39:59" (1/3) ... [2020-11-29 23:40:01,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4055987a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:40:01, skipping insertion in model container [2020-11-29 23:40:01,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:00" (2/3) ... [2020-11-29 23:40:01,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4055987a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:40:01, skipping insertion in model container [2020-11-29 23:40:01,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:40:01" (3/3) ... [2020-11-29 23:40:01,385 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-11-29 23:40:01,395 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:40:01,400 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 23:40:01,411 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 23:40:01,433 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:40:01,433 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:40:01,433 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:40:01,433 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:40:01,434 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:40:01,434 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:40:01,434 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:40:01,434 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:40:01,449 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-11-29 23:40:01,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 23:40:01,455 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:40:01,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:01,456 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:40:01,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:01,462 INFO L82 PathProgramCache]: Analyzing trace with hash -355307121, now seen corresponding path program 1 times [2020-11-29 23:40:01,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:40:01,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184549359] [2020-11-29 23:40:01,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:40:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:40:01,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:40:01,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184549359] [2020-11-29 23:40:01,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:40:01,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:40:01,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977654321] [2020-11-29 23:40:01,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:40:01,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:40:01,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:40:01,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:40:01,782 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2020-11-29 23:40:01,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:40:01,825 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2020-11-29 23:40:01,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:40:01,826 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-29 23:40:01,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:40:01,841 INFO L225 Difference]: With dead ends: 151 [2020-11-29 23:40:01,841 INFO L226 Difference]: Without dead ends: 73 [2020-11-29 23:40:01,863 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 [2020-11-29 23:40:01,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-29 23:40:01,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-29 23:40:01,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-29 23:40:01,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2020-11-29 23:40:01,917 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 18 [2020-11-29 23:40:01,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:40:01,917 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-11-29 23:40:01,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:40:01,918 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-11-29 23:40:01,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 23:40:01,920 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:40:01,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:01,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:40:01,921 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:40:01,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:01,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1266337874, now seen corresponding path program 1 times [2020-11-29 23:40:01,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:40:01,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340056468] [2020-11-29 23:40:01,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:40:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:40:02,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:40:02,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340056468] [2020-11-29 23:40:02,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:40:02,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:40:02,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456089900] [2020-11-29 23:40:02,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:40:02,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:40:02,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:40:02,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:40:02,104 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 3 states. [2020-11-29 23:40:02,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:40:02,114 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-11-29 23:40:02,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:40:02,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-29 23:40:02,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:40:02,116 INFO L225 Difference]: With dead ends: 73 [2020-11-29 23:40:02,116 INFO L226 Difference]: Without dead ends: 35 [2020-11-29 23:40:02,117 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 [2020-11-29 23:40:02,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-29 23:40:02,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-29 23:40:02,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-29 23:40:02,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-11-29 23:40:02,122 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-11-29 23:40:02,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:40:02,122 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-11-29 23:40:02,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:40:02,123 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-11-29 23:40:02,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 23:40:02,123 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:40:02,124 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] [2020-11-29 23:40:02,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:40:02,124 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:40:02,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:02,125 INFO L82 PathProgramCache]: Analyzing trace with hash 428358184, now seen corresponding path program 1 times [2020-11-29 23:40:02,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:40:02,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020604154] [2020-11-29 23:40:02,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:40:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:40:02,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:40:02,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020604154] [2020-11-29 23:40:02,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:40:02,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:40:02,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254221604] [2020-11-29 23:40:02,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:40:02,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:40:02,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:40:02,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:40:02,287 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 5 states. [2020-11-29 23:40:02,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:40:02,380 INFO L93 Difference]: Finished difference Result 89 states and 129 transitions. [2020-11-29 23:40:02,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:40:02,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-29 23:40:02,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:40:02,382 INFO L225 Difference]: With dead ends: 89 [2020-11-29 23:40:02,382 INFO L226 Difference]: Without dead ends: 60 [2020-11-29 23:40:02,383 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 [2020-11-29 23:40:02,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-29 23:40:02,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-11-29 23:40:02,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-29 23:40:02,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 81 transitions. [2020-11-29 23:40:02,391 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 81 transitions. Word has length 24 [2020-11-29 23:40:02,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:40:02,392 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 81 transitions. [2020-11-29 23:40:02,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:40:02,392 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2020-11-29 23:40:02,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 23:40:02,393 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:40:02,393 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] [2020-11-29 23:40:02,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 23:40:02,394 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:40:02,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:02,394 INFO L82 PathProgramCache]: Analyzing trace with hash 796513325, now seen corresponding path program 1 times [2020-11-29 23:40:02,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:40:02,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845288696] [2020-11-29 23:40:02,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:40:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:40:02,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:40:02,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845288696] [2020-11-29 23:40:02,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:40:02,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:40:02,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390201737] [2020-11-29 23:40:02,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:40:02,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:40:02,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:40:02,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:40:02,543 INFO L87 Difference]: Start difference. First operand 56 states and 81 transitions. Second operand 5 states. [2020-11-29 23:40:02,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:40:02,666 INFO L93 Difference]: Finished difference Result 292 states and 446 transitions. [2020-11-29 23:40:02,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:40:02,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-29 23:40:02,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:40:02,671 INFO L225 Difference]: With dead ends: 292 [2020-11-29 23:40:02,671 INFO L226 Difference]: Without dead ends: 242 [2020-11-29 23:40:02,672 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 [2020-11-29 23:40:02,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-11-29 23:40:02,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 100. [2020-11-29 23:40:02,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-29 23:40:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2020-11-29 23:40:02,710 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 25 [2020-11-29 23:40:02,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:40:02,710 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2020-11-29 23:40:02,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:40:02,711 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2020-11-29 23:40:02,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 23:40:02,717 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:40:02,717 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] [2020-11-29 23:40:02,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 23:40:02,718 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:40:02,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:02,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1162795665, now seen corresponding path program 1 times [2020-11-29 23:40:02,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:40:02,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971237871] [2020-11-29 23:40:02,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:40:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:02,812 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:02,912 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:02,966 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:40:02,966 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 23:40:02,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 23:40:03,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:40:03 BoogieIcfgContainer [2020-11-29 23:40:03,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:40:03,089 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:40:03,090 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:40:03,092 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:40:03,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:40:01" (3/4) ... [2020-11-29 23:40:03,095 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 23:40:03,176 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_48fc6241-205d-4e2e-ab3b-55047f2388c7/bin/uautomizer/witness.graphml [2020-11-29 23:40:03,177 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:40:03,178 INFO L168 Benchmark]: Toolchain (without parser) took 3558.28 ms. Allocated memory was 90.2 MB in the beginning and 142.6 MB in the end (delta: 52.4 MB). Free memory was 55.2 MB in the beginning and 101.5 MB in the end (delta: -46.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:03,179 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 90.2 MB. Free memory was 63.6 MB in the beginning and 63.6 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:40:03,179 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.15 ms. Allocated memory is still 90.2 MB. Free memory was 55.0 MB in the beginning and 57.5 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:03,180 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.90 ms. Allocated memory is still 90.2 MB. Free memory was 57.5 MB in the beginning and 54.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:03,180 INFO L168 Benchmark]: Boogie Preprocessor took 74.70 ms. Allocated memory is still 90.2 MB. Free memory was 54.3 MB in the beginning and 52.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:03,181 INFO L168 Benchmark]: RCFGBuilder took 1017.25 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.3 MB in the beginning and 69.7 MB in the end (delta: -17.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:03,181 INFO L168 Benchmark]: TraceAbstraction took 1711.41 ms. Allocated memory was 109.1 MB in the beginning and 142.6 MB in the end (delta: 33.6 MB). Free memory was 69.3 MB in the beginning and 113.0 MB in the end (delta: -43.7 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:03,182 INFO L168 Benchmark]: Witness Printer took 87.27 ms. Allocated memory is still 142.6 MB. Free memory was 113.0 MB in the beginning and 101.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:03,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 90.2 MB. Free memory was 63.6 MB in the beginning and 63.6 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 584.15 ms. Allocated memory is still 90.2 MB. Free memory was 55.0 MB in the beginning and 57.5 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.90 ms. Allocated memory is still 90.2 MB. Free memory was 57.5 MB in the beginning and 54.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.70 ms. Allocated memory is still 90.2 MB. Free memory was 54.3 MB in the beginning and 52.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1017.25 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.3 MB in the beginning and 69.7 MB in the end (delta: -17.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1711.41 ms. Allocated memory was 109.1 MB in the beginning and 142.6 MB in the end (delta: 33.6 MB). Free memory was 69.3 MB in the beginning and 113.0 MB in the end (delta: -43.7 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. * Witness Printer took 87.27 ms. Allocated memory is still 142.6 MB. Free memory was 113.0 MB in the beginning and 101.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 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: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L615] int pumpRunning = 0; [L616] int systemActive = 1; [L809] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L882] int retValue_acc ; [L883] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] int retValue_acc ; [L803] retValue_acc = 1 [L804] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L889] tmp = valid_product() [L891] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L544] int splverifierCounter ; [L545] int tmp ; [L546] int tmp___0 ; [L547] int tmp___1 ; [L548] int tmp___2 ; [L551] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L553] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L555] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L561] tmp = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L468] COND TRUE waterLevel < 2 [L469] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L571] tmp___0 = __VERIFIER_nondet_int() [L573] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L581] tmp___2 = __VERIFIER_nondet_int() [L583] COND TRUE \read(tmp___2) [L766] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L629] COND TRUE \read(systemActive) [L651] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L521] int retValue_acc ; [L524] retValue_acc = waterLevel [L525] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L63] tmp___1 = isPumpRunning() [L65] 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_product08.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, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 278 SDtfs, 447 SDslu, 230 SDs, 0 SdLazy, 41 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred 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, 146 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3028 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...