./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ac89a83bf5f8cec9ed1c7380129a7935c1d366c ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-cad4683 [2019-10-22 08:58:00,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:00,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:00,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:00,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:00,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:00,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:00,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:00,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:00,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:00,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:00,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:00,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:00,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:00,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:00,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:00,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:00,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:00,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:00,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:00,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:00,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:00,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:00,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:00,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:00,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:00,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:00,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:00,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:00,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:00,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:00,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:00,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:00,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:00,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:00,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:00,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:00,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:00,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:00,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:00,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:00,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:58:00,439 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:00,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:00,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:00,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:00,441 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:00,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:00,441 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:00,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:00,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:00,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:00,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:00,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:00,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:00,443 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:00,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:00,443 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:00,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:00,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:00,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:00,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:00,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:00,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:00,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:00,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:00,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:00,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:00,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:00,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:00,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/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(__VERIFIER_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 -> 5ac89a83bf5f8cec9ed1c7380129a7935c1d366c [2019-10-22 08:58:00,471 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:00,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:00,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:00,486 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:00,486 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:00,487 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2019-10-22 08:58:00,536 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/bin/uautomizer/data/a32104b28/8561fcd4cc1449ec947d5728e056323a/FLAG89113cde2 [2019-10-22 08:58:00,993 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:00,994 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2019-10-22 08:58:01,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/bin/uautomizer/data/a32104b28/8561fcd4cc1449ec947d5728e056323a/FLAG89113cde2 [2019-10-22 08:58:01,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/bin/uautomizer/data/a32104b28/8561fcd4cc1449ec947d5728e056323a [2019-10-22 08:58:01,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:01,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:01,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:01,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:01,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:01,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:01" (1/1) ... [2019-10-22 08:58:01,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544e8593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:01, skipping insertion in model container [2019-10-22 08:58:01,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:01" (1/1) ... [2019-10-22 08:58:01,527 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:01,563 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:01,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:01,988 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:02,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:02,110 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:02,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02 WrapperNode [2019-10-22 08:58:02,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:02,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:02,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:02,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:02,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:02,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:02,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:02,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:02,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... [2019-10-22 08:58:02,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:02,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:02,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:02,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:02,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/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 [2019-10-22 08:58:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:58:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:02,963 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:02,963 INFO L284 CfgBuilder]: Removed 102 assume(true) statements. [2019-10-22 08:58:02,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:02 BoogieIcfgContainer [2019-10-22 08:58:02,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:02,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:02,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:02,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:02,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:01" (1/3) ... [2019-10-22 08:58:02,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc86614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:02, skipping insertion in model container [2019-10-22 08:58:02,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:02" (2/3) ... [2019-10-22 08:58:02,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc86614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:02, skipping insertion in model container [2019-10-22 08:58:02,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:02" (3/3) ... [2019-10-22 08:58:02,972 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2019-10-22 08:58:02,981 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:02,989 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 08:58:03,001 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 08:58:03,035 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:03,035 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:03,035 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:03,036 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:03,036 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:03,036 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:03,036 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:03,036 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:03,053 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2019-10-22 08:58:03,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 08:58:03,062 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:03,062 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:03,064 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:03,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:03,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1940604754, now seen corresponding path program 1 times [2019-10-22 08:58:03,080 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:03,082 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883221566] [2019-10-22 08:58:03,082 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:03,083 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:03,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:03,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:03,275 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883221566] [2019-10-22 08:58:03,275 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:03,276 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:58:03,276 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916573073] [2019-10-22 08:58:03,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:58:03,281 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:03,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:58:03,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:58:03,295 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2019-10-22 08:58:03,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:03,315 INFO L93 Difference]: Finished difference Result 156 states and 233 transitions. [2019-10-22 08:58:03,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:58:03,316 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 08:58:03,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:03,325 INFO L225 Difference]: With dead ends: 156 [2019-10-22 08:58:03,325 INFO L226 Difference]: Without dead ends: 77 [2019-10-22 08:58:03,328 INFO L600 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 [2019-10-22 08:58:03,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-10-22 08:58:03,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-10-22 08:58:03,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-10-22 08:58:03,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2019-10-22 08:58:03,370 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2019-10-22 08:58:03,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:03,370 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-10-22 08:58:03,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:58:03,370 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2019-10-22 08:58:03,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 08:58:03,371 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:03,371 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:03,371 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:03,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:03,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1815937872, now seen corresponding path program 1 times [2019-10-22 08:58:03,372 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:03,372 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691360211] [2019-10-22 08:58:03,372 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:03,372 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:03,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:03,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:03,476 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691360211] [2019-10-22 08:58:03,476 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:03,477 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:03,477 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440163588] [2019-10-22 08:58:03,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:58:03,478 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:03,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:03,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:03,479 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand 3 states. [2019-10-22 08:58:03,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:03,489 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2019-10-22 08:58:03,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:03,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 08:58:03,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:03,491 INFO L225 Difference]: With dead ends: 77 [2019-10-22 08:58:03,491 INFO L226 Difference]: Without dead ends: 35 [2019-10-22 08:58:03,494 INFO L600 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 [2019-10-22 08:58:03,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-22 08:58:03,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-10-22 08:58:03,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-22 08:58:03,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2019-10-22 08:58:03,503 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2019-10-22 08:58:03,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:03,503 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2019-10-22 08:58:03,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:58:03,503 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2019-10-22 08:58:03,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 08:58:03,504 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:03,504 INFO L380 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] [2019-10-22 08:58:03,504 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:03,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:03,505 INFO L82 PathProgramCache]: Analyzing trace with hash -163835793, now seen corresponding path program 1 times [2019-10-22 08:58:03,505 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:03,505 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821531404] [2019-10-22 08:58:03,505 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:03,505 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:03,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:03,638 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821531404] [2019-10-22 08:58:03,638 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:03,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:58:03,638 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558040578] [2019-10-22 08:58:03,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:58:03,639 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:03,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:03,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:03,640 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 3 states. [2019-10-22 08:58:03,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:03,648 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2019-10-22 08:58:03,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:03,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 08:58:03,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:03,652 INFO L225 Difference]: With dead ends: 64 [2019-10-22 08:58:03,652 INFO L226 Difference]: Without dead ends: 35 [2019-10-22 08:58:03,653 INFO L600 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 [2019-10-22 08:58:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-22 08:58:03,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-10-22 08:58:03,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-22 08:58:03,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2019-10-22 08:58:03,657 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2019-10-22 08:58:03,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:03,657 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2019-10-22 08:58:03,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:58:03,657 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2019-10-22 08:58:03,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:58:03,658 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:03,660 INFO L380 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] [2019-10-22 08:58:03,660 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:03,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:03,661 INFO L82 PathProgramCache]: Analyzing trace with hash 993963754, now seen corresponding path program 1 times [2019-10-22 08:58:03,661 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:03,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251936807] [2019-10-22 08:58:03,661 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:03,661 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:03,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:03,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:03,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251936807] [2019-10-22 08:58:03,764 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:03,764 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:03,765 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767464475] [2019-10-22 08:58:03,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:03,765 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:03,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:03,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:03,766 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand 5 states. [2019-10-22 08:58:03,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:03,871 INFO L93 Difference]: Finished difference Result 172 states and 255 transitions. [2019-10-22 08:58:03,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:58:03,872 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 08:58:03,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:03,873 INFO L225 Difference]: With dead ends: 172 [2019-10-22 08:58:03,873 INFO L226 Difference]: Without dead ends: 143 [2019-10-22 08:58:03,874 INFO L600 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 [2019-10-22 08:58:03,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-10-22 08:58:03,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 60. [2019-10-22 08:58:03,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-10-22 08:58:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2019-10-22 08:58:03,891 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 25 [2019-10-22 08:58:03,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:03,891 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2019-10-22 08:58:03,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:03,891 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2019-10-22 08:58:03,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:58:03,892 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:03,892 INFO L380 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] [2019-10-22 08:58:03,892 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:03,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:03,893 INFO L82 PathProgramCache]: Analyzing trace with hash -965345236, now seen corresponding path program 1 times [2019-10-22 08:58:03,893 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:03,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878391074] [2019-10-22 08:58:03,893 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:03,893 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:03,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:04,520 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:04,520 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:58:04,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:04 BoogieIcfgContainer [2019-10-22 08:58:04,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:04,622 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:04,623 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:04,623 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:04,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:02" (3/4) ... [2019-10-22 08:58:04,625 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:58:04,725 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6fc52186-df5d-4dcf-abd4-87ccc88fa3dc/bin/uautomizer/witness.graphml [2019-10-22 08:58:04,725 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:04,727 INFO L168 Benchmark]: Toolchain (without parser) took 3216.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -154.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:04,727 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:04,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:04,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:04,729 INFO L168 Benchmark]: Boogie Preprocessor took 37.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:04,729 INFO L168 Benchmark]: RCFGBuilder took 757.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:04,729 INFO L168 Benchmark]: TraceAbstraction took 1657.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -53.2 MB). Peak memory consumption was 192.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:04,730 INFO L168 Benchmark]: Witness Printer took 102.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:04,732 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 599.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 757.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1657.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -53.2 MB). Peak memory consumption was 192.8 MB. Max. memory is 11.5 GB. * Witness Printer took 102.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L735] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L811] int retValue_acc ; [L812] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] int retValue_acc ; [L863] retValue_acc = 1 [L864] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L818] tmp = valid_product() [L820] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] tmp = __VERIFIER_nondet_int() [L533] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L590] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] COND TRUE \read(systemActive) [L619] int tmp ; 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] [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L876] tmp = isMethaneLevelCritical() [L878] COND FALSE !(\read(tmp)) [L484] int retValue_acc ; [L487] retValue_acc = waterLevel [L488] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L882] tmp___0 = getWaterLevel() [L884] COND TRUE tmp___0 == 2 [L671] int retValue_acc ; [L674] retValue_acc = pumpRunning [L675] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L886] tmp___1 = isPumpRunning() [L888] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 81 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 281 SDtfs, 266 SDslu, 183 SDs, 0 SdLazy, 43 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, 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, 83 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...