./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 414418e2da6d7a65cf7274af502c2c1949ddb3af ................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-f6fb2bb [2019-11-19 18:57:33,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:57:33,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:57:33,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:57:33,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:57:33,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:57:33,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:57:33,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:57:33,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:57:33,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:57:33,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:57:33,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:57:33,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:57:33,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:57:33,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:57:33,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:57:33,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:57:33,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:57:33,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:57:33,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:57:33,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:57:33,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:57:33,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:57:33,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:57:33,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:57:33,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:57:33,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:57:33,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:57:33,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:57:33,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:57:33,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:57:33,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:57:33,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:57:33,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:57:33,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:57:33,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:57:33,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:57:33,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:57:33,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:57:33,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:57:33,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:57:33,347 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 18:57:33,374 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:57:33,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:57:33,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:57:33,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:57:33,377 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:57:33,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:57:33,378 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:57:33,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 18:57:33,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:57:33,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:57:33,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:57:33,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:57:33,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:57:33,381 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:57:33,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:57:33,381 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:57:33,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:57:33,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:57:33,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:57:33,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:57:33,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:57:33,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:57:33,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:57:33,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:57:33,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:57:33,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 18:57:33,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 18:57:33,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:57:33,385 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 414418e2da6d7a65cf7274af502c2c1949ddb3af [2019-11-19 18:57:33,742 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:57:33,765 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:57:33,769 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:57:33,771 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:57:33,771 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:57:33,772 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2019-11-19 18:57:33,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c3d67cc/fc6c73612a47495a8f05e5df293649e0/FLAGacbbc88a3 [2019-11-19 18:57:34,436 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:57:34,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2019-11-19 18:57:34,462 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c3d67cc/fc6c73612a47495a8f05e5df293649e0/FLAGacbbc88a3 [2019-11-19 18:57:34,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c3d67cc/fc6c73612a47495a8f05e5df293649e0 [2019-11-19 18:57:34,746 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:57:34,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:57:34,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:57:34,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:57:34,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:57:34,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:57:34" (1/1) ... [2019-11-19 18:57:34,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5097dbde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:34, skipping insertion in model container [2019-11-19 18:57:34,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:57:34" (1/1) ... [2019-11-19 18:57:34,766 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:57:34,835 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:57:35,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:57:35,253 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:57:35,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:57:35,422 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:57:35,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:35 WrapperNode [2019-11-19 18:57:35,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:57:35,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:57:35,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:57:35,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:57:35,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:35" (1/1) ... [2019-11-19 18:57:35,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:35" (1/1) ... [2019-11-19 18:57:35,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:57:35,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:57:35,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:57:35,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:57:35,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:35" (1/1) ... [2019-11-19 18:57:35,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:35" (1/1) ... [2019-11-19 18:57:35,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:35" (1/1) ... [2019-11-19 18:57:35,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:35" (1/1) ... [2019-11-19 18:57:35,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:35" (1/1) ... [2019-11-19 18:57:35,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:35" (1/1) ... [2019-11-19 18:57:35,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:35" (1/1) ... [2019-11-19 18:57:35,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:57:35,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:57:35,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:57:35,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:57:35,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 18:57:35,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 18:57:35,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 18:57:35,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:57:35,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:57:36,428 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:57:36,429 INFO L285 CfgBuilder]: Removed 104 assume(true) statements. [2019-11-19 18:57:36,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:36 BoogieIcfgContainer [2019-11-19 18:57:36,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:57:36,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:57:36,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:57:36,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:57:36,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:57:34" (1/3) ... [2019-11-19 18:57:36,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4b6567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:57:36, skipping insertion in model container [2019-11-19 18:57:36,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:35" (2/3) ... [2019-11-19 18:57:36,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4b6567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:57:36, skipping insertion in model container [2019-11-19 18:57:36,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:36" (3/3) ... [2019-11-19 18:57:36,442 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2019-11-19 18:57:36,454 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:57:36,464 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-19 18:57:36,479 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-19 18:57:36,509 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:57:36,509 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:57:36,509 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:57:36,510 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:57:36,510 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:57:36,510 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:57:36,511 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:57:36,511 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:57:36,530 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2019-11-19 18:57:36,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-19 18:57:36,538 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:36,539 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:57:36,540 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:36,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:36,548 INFO L82 PathProgramCache]: Analyzing trace with hash 928665618, now seen corresponding path program 1 times [2019-11-19 18:57:36,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:36,559 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204266860] [2019-11-19 18:57:36,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:36,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:36,896 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204266860] [2019-11-19 18:57:36,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:36,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 18:57:36,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755881491] [2019-11-19 18:57:36,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 18:57:36,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:36,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 18:57:36,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 18:57:36,922 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2019-11-19 18:57:36,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:36,954 INFO L93 Difference]: Finished difference Result 156 states and 233 transitions. [2019-11-19 18:57:36,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 18:57:36,957 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-19 18:57:36,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:36,967 INFO L225 Difference]: With dead ends: 156 [2019-11-19 18:57:36,968 INFO L226 Difference]: Without dead ends: 77 [2019-11-19 18:57:36,971 INFO L630 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 [2019-11-19 18:57:36,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-19 18:57:37,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-11-19 18:57:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-19 18:57:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2019-11-19 18:57:37,015 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2019-11-19 18:57:37,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:37,015 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2019-11-19 18:57:37,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 18:57:37,016 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2019-11-19 18:57:37,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-19 18:57:37,017 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:37,018 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:57:37,018 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:37,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:37,019 INFO L82 PathProgramCache]: Analyzing trace with hash 674916017, now seen corresponding path program 1 times [2019-11-19 18:57:37,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:37,020 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574792800] [2019-11-19 18:57:37,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:37,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:37,152 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574792800] [2019-11-19 18:57:37,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:37,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 18:57:37,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319577655] [2019-11-19 18:57:37,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 18:57:37,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:37,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 18:57:37,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:57:37,156 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand 3 states. [2019-11-19 18:57:37,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:37,187 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2019-11-19 18:57:37,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 18:57:37,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-19 18:57:37,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:37,192 INFO L225 Difference]: With dead ends: 77 [2019-11-19 18:57:37,192 INFO L226 Difference]: Without dead ends: 35 [2019-11-19 18:57:37,194 INFO L630 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 [2019-11-19 18:57:37,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-19 18:57:37,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-19 18:57:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-19 18:57:37,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2019-11-19 18:57:37,207 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2019-11-19 18:57:37,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:37,208 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2019-11-19 18:57:37,208 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 18:57:37,209 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2019-11-19 18:57:37,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-19 18:57:37,213 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:37,214 INFO L410 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] [2019-11-19 18:57:37,214 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:37,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:37,215 INFO L82 PathProgramCache]: Analyzing trace with hash 492093711, now seen corresponding path program 1 times [2019-11-19 18:57:37,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:37,216 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469444325] [2019-11-19 18:57:37,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:37,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:37,379 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469444325] [2019-11-19 18:57:37,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:37,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 18:57:37,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363242398] [2019-11-19 18:57:37,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 18:57:37,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:37,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 18:57:37,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 18:57:37,384 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 5 states. [2019-11-19 18:57:37,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:37,453 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2019-11-19 18:57:37,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 18:57:37,454 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-19 18:57:37,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:37,455 INFO L225 Difference]: With dead ends: 64 [2019-11-19 18:57:37,455 INFO L226 Difference]: Without dead ends: 35 [2019-11-19 18:57:37,457 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-19 18:57:37,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-19 18:57:37,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-19 18:57:37,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-19 18:57:37,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2019-11-19 18:57:37,464 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2019-11-19 18:57:37,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:37,465 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2019-11-19 18:57:37,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 18:57:37,465 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2019-11-19 18:57:37,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-19 18:57:37,466 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:37,467 INFO L410 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] [2019-11-19 18:57:37,467 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:37,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:37,468 INFO L82 PathProgramCache]: Analyzing trace with hash -147058101, now seen corresponding path program 1 times [2019-11-19 18:57:37,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:37,468 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244683964] [2019-11-19 18:57:37,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:37,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:37,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244683964] [2019-11-19 18:57:37,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:37,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 18:57:37,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536504661] [2019-11-19 18:57:37,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 18:57:37,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:37,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 18:57:37,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 18:57:37,544 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand 5 states. [2019-11-19 18:57:37,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:37,698 INFO L93 Difference]: Finished difference Result 172 states and 255 transitions. [2019-11-19 18:57:37,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 18:57:37,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-19 18:57:37,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:37,702 INFO L225 Difference]: With dead ends: 172 [2019-11-19 18:57:37,702 INFO L226 Difference]: Without dead ends: 143 [2019-11-19 18:57:37,703 INFO L630 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 [2019-11-19 18:57:37,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-19 18:57:37,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 60. [2019-11-19 18:57:37,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-11-19 18:57:37,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2019-11-19 18:57:37,717 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 25 [2019-11-19 18:57:37,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:37,717 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2019-11-19 18:57:37,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 18:57:37,718 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2019-11-19 18:57:37,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-19 18:57:37,719 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:37,719 INFO L410 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] [2019-11-19 18:57:37,719 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:37,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:37,720 INFO L82 PathProgramCache]: Analyzing trace with hash -2106367091, now seen corresponding path program 1 times [2019-11-19 18:57:37,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:37,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57287661] [2019-11-19 18:57:37,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:57:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:57:38,686 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 18:57:38,686 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 18:57:38,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:57:38 BoogieIcfgContainer [2019-11-19 18:57:38,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 18:57:38,836 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 18:57:38,836 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 18:57:38,837 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 18:57:38,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:36" (3/4) ... [2019-11-19 18:57:38,841 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 18:57:39,025 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 18:57:39,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 18:57:39,033 INFO L168 Benchmark]: Toolchain (without parser) took 4279.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 67.1 MB). Free memory was 961.7 MB in the beginning and 751.8 MB in the end (delta: 209.9 MB). Peak memory consumption was 277.0 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:39,034 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:57:39,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 67.1 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -85.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:39,037 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:39,039 INFO L168 Benchmark]: Boogie Preprocessor took 69.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:57:39,040 INFO L168 Benchmark]: RCFGBuilder took 840.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 977.7 MB in the end (delta: 62.2 MB). Peak memory consumption was 62.2 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:39,040 INFO L168 Benchmark]: TraceAbstraction took 2398.74 ms. Allocated memory is still 1.1 GB. Free memory was 977.7 MB in the beginning and 758.9 MB in the end (delta: 218.8 MB). Peak memory consumption was 218.8 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:39,041 INFO L168 Benchmark]: Witness Printer took 189.51 ms. Allocated memory is still 1.1 GB. Free memory was 758.9 MB in the beginning and 751.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:39,048 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 676.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 67.1 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -85.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 840.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 977.7 MB in the end (delta: 62.2 MB). Peak memory consumption was 62.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2398.74 ms. Allocated memory is still 1.1 GB. Free memory was 977.7 MB in the beginning and 758.9 MB in the end (delta: 218.8 MB). Peak memory consumption was 218.8 MB. Max. memory is 11.5 GB. * Witness Printer took 189.51 ms. Allocated memory is still 1.1 GB. Free memory was 758.9 MB in the beginning and 751.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 910]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L608] int pumpRunning = 0; [L609] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L770] int splverifierCounter ; [L771] int tmp ; [L772] int tmp___0 ; [L773] int tmp___1 ; [L774] int tmp___2 ; [L777] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L779] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L781] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L787] tmp = __VERIFIER_nondet_int() [L789] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] COND TRUE waterLevel < 2 [L168] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L797] tmp___0 = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L807] tmp___2 = __VERIFIER_nondet_int() [L809] COND TRUE \read(tmp___2) [L764] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L616] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] COND TRUE \read(systemActive) [L645] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L648] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L873] int tmp ; [L874] int tmp___0 ; [L875] int tmp___1 ; [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L879] tmp = isMethaneLevelCritical() [L881] COND FALSE !(\read(tmp)) [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L885] tmp___0 = getWaterLevel() [L887] COND TRUE tmp___0 == 2 [L697] int retValue_acc ; [L700] retValue_acc = pumpRunning [L701] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L889] tmp___1 = isPumpRunning() [L891] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L910] __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: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 279 SDtfs, 367 SDslu, 187 SDs, 0 SdLazy, 46 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s 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, 0.8s SatisfiabilityAnalysisTime, 0.3s 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...