./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c 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_spec4_product42.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 c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-11-28 17:26:57,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:26:57,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:26:57,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:26:57,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:26:57,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:26:57,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:26:57,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:26:57,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:26:57,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:26:57,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:26:57,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:26:57,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:26:57,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:26:57,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:26:57,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:26:57,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:26:57,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:26:57,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:26:57,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:26:57,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:26:57,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:26:57,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:26:57,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:26:57,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:26:57,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:26:57,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:26:57,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:26:57,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:26:57,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:26:57,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:26:57,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:26:57,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:26:57,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:26:57,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:26:57,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:26:57,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:26:57,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:26:57,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:26:57,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:26:57,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:26:57,347 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:26:57,362 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:26:57,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:26:57,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:26:57,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:26:57,365 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:26:57,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:26:57,366 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:26:57,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:26:57,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:26:57,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:26:57,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:26:57,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:26:57,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:26:57,368 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:26:57,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:26:57,368 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:26:57,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:26:57,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:26:57,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:26:57,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:26:57,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:26:57,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:26:57,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:26:57,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:26:57,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:26:57,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:26:57,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:26:57,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:26:57,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:26:57,372 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 -> c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 [2019-11-28 17:26:57,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:26:57,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:26:57,734 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:26:57,735 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:26:57,736 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:26:57,737 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-11-28 17:26:57,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a6979de6/963c6d62ac2049438e8be9e426b9f1ef/FLAG2b33d5cb5 [2019-11-28 17:26:58,360 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:26:58,363 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-11-28 17:26:58,379 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a6979de6/963c6d62ac2049438e8be9e426b9f1ef/FLAG2b33d5cb5 [2019-11-28 17:26:58,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a6979de6/963c6d62ac2049438e8be9e426b9f1ef [2019-11-28 17:26:58,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:26:58,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:26:58,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:26:58,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:26:58,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:26:58,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:58,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ebb17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58, skipping insertion in model container [2019-11-28 17:26:58,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:58,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:26:58,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:26:59,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:26:59,125 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:26:59,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:26:59,340 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:26:59,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59 WrapperNode [2019-11-28 17:26:59,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:26:59,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:26:59,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:26:59,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:26:59,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59" (1/1) ... [2019-11-28 17:26:59,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59" (1/1) ... [2019-11-28 17:26:59,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:26:59,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:26:59,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:26:59,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:26:59,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59" (1/1) ... [2019-11-28 17:26:59,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59" (1/1) ... [2019-11-28 17:26:59,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59" (1/1) ... [2019-11-28 17:26:59,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59" (1/1) ... [2019-11-28 17:26:59,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59" (1/1) ... [2019-11-28 17:26:59,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59" (1/1) ... [2019-11-28 17:26:59,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59" (1/1) ... [2019-11-28 17:26:59,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:26:59,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:26:59,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:26:59,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:26:59,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59" (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 [2019-11-28 17:26:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 17:26:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 17:26:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:26:59,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:27:00,307 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:27:00,308 INFO L287 CfgBuilder]: Removed 116 assume(true) statements. [2019-11-28 17:27:00,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:27:00 BoogieIcfgContainer [2019-11-28 17:27:00,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:27:00,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:27:00,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:27:00,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:27:00,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:26:58" (1/3) ... [2019-11-28 17:27:00,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c28c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:27:00, skipping insertion in model container [2019-11-28 17:27:00,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:59" (2/3) ... [2019-11-28 17:27:00,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c28c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:27:00, skipping insertion in model container [2019-11-28 17:27:00,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:27:00" (3/3) ... [2019-11-28 17:27:00,328 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2019-11-28 17:27:00,339 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:27:00,347 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 17:27:00,358 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 17:27:00,381 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:27:00,381 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:27:00,381 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:27:00,382 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:27:00,382 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:27:00,382 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:27:00,382 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:27:00,383 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:27:00,402 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2019-11-28 17:27:00,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 17:27:00,412 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:00,413 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:00,414 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:00,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:00,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1594902839, now seen corresponding path program 1 times [2019-11-28 17:27:00,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:00,429 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323994753] [2019-11-28 17:27:00,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:00,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:00,710 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323994753] [2019-11-28 17:27:00,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:00,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:27:00,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265094505] [2019-11-28 17:27:00,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 17:27:00,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:00,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 17:27:00,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:27:00,738 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2019-11-28 17:27:00,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:00,769 INFO L93 Difference]: Finished difference Result 168 states and 251 transitions. [2019-11-28 17:27:00,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 17:27:00,771 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-28 17:27:00,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:00,784 INFO L225 Difference]: With dead ends: 168 [2019-11-28 17:27:00,784 INFO L226 Difference]: Without dead ends: 83 [2019-11-28 17:27:00,789 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 [2019-11-28 17:27:00,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-11-28 17:27:00,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-11-28 17:27:00,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-28 17:27:00,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2019-11-28 17:27:00,838 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2019-11-28 17:27:00,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:00,838 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2019-11-28 17:27:00,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 17:27:00,839 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2019-11-28 17:27:00,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 17:27:00,840 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:00,840 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:00,840 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:00,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:00,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1653307560, now seen corresponding path program 1 times [2019-11-28 17:27:00,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:00,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401766832] [2019-11-28 17:27:00,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:00,977 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401766832] [2019-11-28 17:27:00,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:00,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:27:00,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421414988] [2019-11-28 17:27:00,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:27:00,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:00,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:27:00,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:27:00,984 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 3 states. [2019-11-28 17:27:01,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:01,004 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2019-11-28 17:27:01,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:27:01,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-28 17:27:01,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:01,006 INFO L225 Difference]: With dead ends: 83 [2019-11-28 17:27:01,007 INFO L226 Difference]: Without dead ends: 37 [2019-11-28 17:27:01,008 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 [2019-11-28 17:27:01,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-28 17:27:01,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-28 17:27:01,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-28 17:27:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2019-11-28 17:27:01,019 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2019-11-28 17:27:01,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:01,020 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2019-11-28 17:27:01,020 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:27:01,020 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2019-11-28 17:27:01,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 17:27:01,021 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:01,021 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] [2019-11-28 17:27:01,022 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:01,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:01,022 INFO L82 PathProgramCache]: Analyzing trace with hash 533078269, now seen corresponding path program 1 times [2019-11-28 17:27:01,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:01,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074693296] [2019-11-28 17:27:01,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:01,099 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074693296] [2019-11-28 17:27:01,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:01,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:27:01,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039471294] [2019-11-28 17:27:01,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:27:01,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:01,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:27:01,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:27:01,102 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2019-11-28 17:27:01,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:01,131 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2019-11-28 17:27:01,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:27:01,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-11-28 17:27:01,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:01,133 INFO L225 Difference]: With dead ends: 68 [2019-11-28 17:27:01,134 INFO L226 Difference]: Without dead ends: 37 [2019-11-28 17:27:01,135 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 [2019-11-28 17:27:01,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-28 17:27:01,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-28 17:27:01,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-28 17:27:01,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2019-11-28 17:27:01,141 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2019-11-28 17:27:01,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:01,142 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2019-11-28 17:27:01,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:27:01,143 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2019-11-28 17:27:01,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-28 17:27:01,144 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:01,144 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] [2019-11-28 17:27:01,145 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:01,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:01,145 INFO L82 PathProgramCache]: Analyzing trace with hash 545820985, now seen corresponding path program 1 times [2019-11-28 17:27:01,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:01,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755629841] [2019-11-28 17:27:01,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:01,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:01,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755629841] [2019-11-28 17:27:01,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:01,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:27:01,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350780008] [2019-11-28 17:27:01,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:27:01,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:01,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:27:01,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:27:01,216 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2019-11-28 17:27:01,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:01,262 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2019-11-28 17:27:01,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:27:01,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-28 17:27:01,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:01,264 INFO L225 Difference]: With dead ends: 89 [2019-11-28 17:27:01,264 INFO L226 Difference]: Without dead ends: 58 [2019-11-28 17:27:01,265 INFO L630 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 [2019-11-28 17:27:01,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-28 17:27:01,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-11-28 17:27:01,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-28 17:27:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2019-11-28 17:27:01,274 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2019-11-28 17:27:01,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:01,275 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2019-11-28 17:27:01,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:27:01,275 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2019-11-28 17:27:01,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-28 17:27:01,276 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:01,276 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, 1, 1, 1] [2019-11-28 17:27:01,277 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:01,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:01,277 INFO L82 PathProgramCache]: Analyzing trace with hash 2110814541, now seen corresponding path program 1 times [2019-11-28 17:27:01,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:01,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751098708] [2019-11-28 17:27:01,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:01,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:01,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751098708] [2019-11-28 17:27:01,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:01,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 17:27:01,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362506742] [2019-11-28 17:27:01,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 17:27:01,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:01,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 17:27:01,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:27:01,428 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 7 states. [2019-11-28 17:27:01,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:01,746 INFO L93 Difference]: Finished difference Result 347 states and 506 transitions. [2019-11-28 17:27:01,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-28 17:27:01,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2019-11-28 17:27:01,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:01,752 INFO L225 Difference]: With dead ends: 347 [2019-11-28 17:27:01,752 INFO L226 Difference]: Without dead ends: 297 [2019-11-28 17:27:01,754 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2019-11-28 17:27:01,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2019-11-28 17:27:01,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 140. [2019-11-28 17:27:01,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-28 17:27:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 193 transitions. [2019-11-28 17:27:01,779 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 193 transitions. Word has length 29 [2019-11-28 17:27:01,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:01,780 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 193 transitions. [2019-11-28 17:27:01,780 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 17:27:01,780 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 193 transitions. [2019-11-28 17:27:01,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-28 17:27:01,782 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:01,783 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:01,783 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:01,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:01,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1559974996, now seen corresponding path program 1 times [2019-11-28 17:27:01,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:01,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989650506] [2019-11-28 17:27:01,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:01,874 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-28 17:27:01,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989650506] [2019-11-28 17:27:01,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:01,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:27:01,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405258590] [2019-11-28 17:27:01,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:27:01,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:01,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:27:01,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:27:01,880 INFO L87 Difference]: Start difference. First operand 140 states and 193 transitions. Second operand 5 states. [2019-11-28 17:27:01,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:01,959 INFO L93 Difference]: Finished difference Result 388 states and 531 transitions. [2019-11-28 17:27:01,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:27:01,959 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-11-28 17:27:01,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:01,961 INFO L225 Difference]: With dead ends: 388 [2019-11-28 17:27:01,962 INFO L226 Difference]: Without dead ends: 254 [2019-11-28 17:27:01,963 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 [2019-11-28 17:27:01,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-11-28 17:27:01,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 149. [2019-11-28 17:27:01,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-28 17:27:01,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 202 transitions. [2019-11-28 17:27:01,986 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 202 transitions. Word has length 47 [2019-11-28 17:27:01,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:01,987 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 202 transitions. [2019-11-28 17:27:01,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:27:01,987 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 202 transitions. [2019-11-28 17:27:01,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-28 17:27:01,995 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:01,996 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:01,996 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:01,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:01,999 INFO L82 PathProgramCache]: Analyzing trace with hash -2069448086, now seen corresponding path program 1 times [2019-11-28 17:27:01,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:02,000 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792556626] [2019-11-28 17:27:02,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:02,084 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-28 17:27:02,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792556626] [2019-11-28 17:27:02,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:02,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:27:02,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908624789] [2019-11-28 17:27:02,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:27:02,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:02,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:27:02,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:27:02,095 INFO L87 Difference]: Start difference. First operand 149 states and 202 transitions. Second operand 4 states. [2019-11-28 17:27:02,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:02,134 INFO L93 Difference]: Finished difference Result 311 states and 422 transitions. [2019-11-28 17:27:02,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 17:27:02,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2019-11-28 17:27:02,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:02,139 INFO L225 Difference]: With dead ends: 311 [2019-11-28 17:27:02,139 INFO L226 Difference]: Without dead ends: 168 [2019-11-28 17:27:02,142 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:27:02,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-28 17:27:02,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 123. [2019-11-28 17:27:02,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-11-28 17:27:02,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 164 transitions. [2019-11-28 17:27:02,183 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 164 transitions. Word has length 47 [2019-11-28 17:27:02,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:02,184 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 164 transitions. [2019-11-28 17:27:02,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:27:02,185 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 164 transitions. [2019-11-28 17:27:02,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-28 17:27:02,192 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:02,192 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:02,193 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:02,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:02,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1874975382, now seen corresponding path program 1 times [2019-11-28 17:27:02,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:02,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560886092] [2019-11-28 17:27:02,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:02,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:02,314 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560886092] [2019-11-28 17:27:02,315 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19121894] [2019-11-28 17:27:02,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:27:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:02,472 INFO L264 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 17:27:02,481 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:27:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:02,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:27:02,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2019-11-28 17:27:02,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439557732] [2019-11-28 17:27:02,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 17:27:02,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:02,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 17:27:02,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-28 17:27:02,546 INFO L87 Difference]: Start difference. First operand 123 states and 164 transitions. Second operand 8 states. [2019-11-28 17:27:02,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:02,799 INFO L93 Difference]: Finished difference Result 424 states and 586 transitions. [2019-11-28 17:27:02,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-28 17:27:02,800 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2019-11-28 17:27:02,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:02,803 INFO L225 Difference]: With dead ends: 424 [2019-11-28 17:27:02,803 INFO L226 Difference]: Without dead ends: 330 [2019-11-28 17:27:02,804 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2019-11-28 17:27:02,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-11-28 17:27:02,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 162. [2019-11-28 17:27:02,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-28 17:27:02,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 215 transitions. [2019-11-28 17:27:02,861 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 215 transitions. Word has length 48 [2019-11-28 17:27:02,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:02,861 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 215 transitions. [2019-11-28 17:27:02,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 17:27:02,862 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 215 transitions. [2019-11-28 17:27:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-28 17:27:02,874 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:02,874 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:03,084 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:27:03,085 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:03,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:03,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1478909471, now seen corresponding path program 2 times [2019-11-28 17:27:03,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:03,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210843444] [2019-11-28 17:27:03,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:27:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:27:03,289 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 17:27:03,289 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 17:27:03,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:27:03 BoogieIcfgContainer [2019-11-28 17:27:03,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:27:03,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:27:03,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:27:03,447 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:27:03,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:27:00" (3/4) ... [2019-11-28 17:27:03,450 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 17:27:03,590 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:27:03,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:27:03,592 INFO L168 Benchmark]: Toolchain (without parser) took 4919.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:03,593 INFO L168 Benchmark]: CDTParser took 0.79 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. [2019-11-28 17:27:03,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -160.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:03,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.60 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:03,594 INFO L168 Benchmark]: Boogie Preprocessor took 54.60 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. [2019-11-28 17:27:03,594 INFO L168 Benchmark]: RCFGBuilder took 835.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:03,594 INFO L168 Benchmark]: TraceAbstraction took 3134.12 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -100.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:27:03,595 INFO L168 Benchmark]: Witness Printer took 143.65 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: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:03,596 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 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 666.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -160.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.60 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.60 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. * RCFGBuilder took 835.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3134.12 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -100.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 143.65 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: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 924]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L573] int cleanupTimeShifts = 4; [L742] int pumpRunning = 0; [L743] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L649] int retValue_acc ; [L650] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L656] tmp = valid_product() [L658] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L674] int splverifierCounter ; [L675] int tmp ; [L676] int tmp___0 ; [L677] int tmp___1 ; [L678] int tmp___2 ; [L681] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L683] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L691] tmp = __VERIFIER_nondet_int() [L693] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND TRUE \read(tmp___2) [L915] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L749] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] COND TRUE \read(systemActive) [L778] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L781] COND TRUE ! pumpRunning [L893] int retValue_acc ; [L894] int tmp ; [L895] int tmp___0 ; [L127] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] tmp = isHighWaterSensorDry() [L901] COND FALSE !(\read(tmp)) [L904] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L906] retValue_acc = tmp___0 [L907] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L783] tmp = isHighWaterLevel() [L785] COND TRUE \read(tmp) [L812] int tmp ; [L837] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] retValue_acc = isMethaneLevelCritical() [L843] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L816] tmp = isMethaneAlarm() [L818] COND FALSE !(\read(tmp)) [L806] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L683] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L685] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND TRUE \read(tmp___2) [L915] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L749] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L756] COND TRUE \read(systemActive) [L778] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L781] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L683] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND TRUE \read(tmp___2) [L915] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L749] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L756] COND TRUE \read(systemActive) [L778] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L781] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L553] tmp = getWaterLevel() [L555] COND TRUE tmp == 0 [L848] int retValue_acc ; [L851] retValue_acc = pumpRunning [L852] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L557] tmp___0 = isPumpRunning() [L559] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.9s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 600 SDtfs, 931 SDslu, 945 SDs, 0 SdLazy, 164 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 477 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 18814 SizeOfPredicates, 4 NumberOfNonLiveVariables, 395 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 50/56 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...