./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab 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_product60.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 fddb6b0f0f2a5c528e066b10e7f7ba2c13018b92 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-30f4e4a [2019-11-28 00:22:13,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:22:13,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:22:13,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:22:13,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:22:13,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:22:13,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:22:13,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:22:13,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:22:13,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:22:13,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:22:13,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:22:13,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:22:13,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:22:13,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:22:13,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:22:13,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:22:13,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:22:13,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:22:13,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:22:13,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:22:13,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:22:13,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:22:13,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:22:13,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:22:13,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:22:13,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:22:13,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:22:13,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:22:13,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:22:13,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:22:13,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:22:13,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:22:13,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:22:13,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:22:13,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:22:13,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:22:13,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:22:13,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:22:13,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:22:13,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:22:13,404 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 00:22:13,431 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:22:13,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:22:13,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:22:13,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:22:13,437 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:22:13,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:22:13,437 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:22:13,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 00:22:13,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:22:13,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:22:13,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:22:13,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:22:13,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:22:13,442 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:22:13,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:22:13,443 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:22:13,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:22:13,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:22:13,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:22:13,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:22:13,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:22:13,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:22:13,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:22:13,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:22:13,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:22:13,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 00:22:13,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 00:22:13,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:22:13,446 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 -> fddb6b0f0f2a5c528e066b10e7f7ba2c13018b92 [2019-11-28 00:22:13,753 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:22:13,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:22:13,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:22:13,775 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:22:13,776 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:22:13,776 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2019-11-28 00:22:13,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43a885160/e2d81071fa6946db86e5cf86fc3dc561/FLAGe3135bc83 [2019-11-28 00:22:14,357 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:22:14,358 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2019-11-28 00:22:14,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43a885160/e2d81071fa6946db86e5cf86fc3dc561/FLAGe3135bc83 [2019-11-28 00:22:14,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43a885160/e2d81071fa6946db86e5cf86fc3dc561 [2019-11-28 00:22:14,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:22:14,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:22:14,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:22:14,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:22:14,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:22:14,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:22:14" (1/1) ... [2019-11-28 00:22:14,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30605f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:14, skipping insertion in model container [2019-11-28 00:22:14,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:22:14" (1/1) ... [2019-11-28 00:22:14,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:22:14,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:22:15,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:22:15,235 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:22:15,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:22:15,354 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:22:15,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:15 WrapperNode [2019-11-28 00:22:15,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:22:15,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:22:15,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:22:15,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:22:15,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:15" (1/1) ... [2019-11-28 00:22:15,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:15" (1/1) ... [2019-11-28 00:22:15,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:22:15,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:22:15,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:22:15,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:22:15,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:15" (1/1) ... [2019-11-28 00:22:15,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:15" (1/1) ... [2019-11-28 00:22:15,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:15" (1/1) ... [2019-11-28 00:22:15,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:15" (1/1) ... [2019-11-28 00:22:15,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:15" (1/1) ... [2019-11-28 00:22:15,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:15" (1/1) ... [2019-11-28 00:22:15,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:15" (1/1) ... [2019-11-28 00:22:15,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:22:15,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:22:15,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:22:15,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:22:15,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:15" (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 00:22:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 00:22:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 00:22:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:22:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:22:16,633 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 00:22:16,633 INFO L297 CfgBuilder]: Removed 204 assume(true) statements. [2019-11-28 00:22:16,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:22:16 BoogieIcfgContainer [2019-11-28 00:22:16,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 00:22:16,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 00:22:16,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 00:22:16,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 00:22:16,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:22:14" (1/3) ... [2019-11-28 00:22:16,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25300899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:22:16, skipping insertion in model container [2019-11-28 00:22:16,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:15" (2/3) ... [2019-11-28 00:22:16,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25300899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:22:16, skipping insertion in model container [2019-11-28 00:22:16,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:22:16" (3/3) ... [2019-11-28 00:22:16,651 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2019-11-28 00:22:16,659 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 00:22:16,665 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 00:22:16,677 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 00:22:16,699 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 00:22:16,699 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 00:22:16,699 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 00:22:16,699 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 00:22:16,700 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 00:22:16,700 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 00:22:16,700 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 00:22:16,700 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 00:22:16,722 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2019-11-28 00:22:16,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 00:22:16,730 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:16,732 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:22:16,732 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:16,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:16,738 INFO L82 PathProgramCache]: Analyzing trace with hash -101624794, now seen corresponding path program 1 times [2019-11-28 00:22:16,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:16,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514480110] [2019-11-28 00:22:16,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:17,024 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 00:22:17,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514480110] [2019-11-28 00:22:17,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:17,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:22:17,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109850226] [2019-11-28 00:22:17,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 00:22:17,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:17,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 00:22:17,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 00:22:17,045 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2019-11-28 00:22:17,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:17,084 INFO L93 Difference]: Finished difference Result 280 states and 419 transitions. [2019-11-28 00:22:17,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 00:22:17,086 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-28 00:22:17,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:17,100 INFO L225 Difference]: With dead ends: 280 [2019-11-28 00:22:17,101 INFO L226 Difference]: Without dead ends: 139 [2019-11-28 00:22:17,105 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 00:22:17,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-11-28 00:22:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2019-11-28 00:22:17,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-11-28 00:22:17,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2019-11-28 00:22:17,159 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2019-11-28 00:22:17,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:17,160 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2019-11-28 00:22:17,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 00:22:17,160 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2019-11-28 00:22:17,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 00:22:17,162 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:17,162 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:22:17,163 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:17,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:17,163 INFO L82 PathProgramCache]: Analyzing trace with hash 524834626, now seen corresponding path program 1 times [2019-11-28 00:22:17,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:17,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090105681] [2019-11-28 00:22:17,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:17,296 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 00:22:17,297 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090105681] [2019-11-28 00:22:17,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:17,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 00:22:17,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767839848] [2019-11-28 00:22:17,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 00:22:17,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:17,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 00:22:17,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:22:17,300 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand 3 states. [2019-11-28 00:22:17,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:17,317 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2019-11-28 00:22:17,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 00:22:17,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 00:22:17,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:17,319 INFO L225 Difference]: With dead ends: 139 [2019-11-28 00:22:17,319 INFO L226 Difference]: Without dead ends: 57 [2019-11-28 00:22:17,320 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 00:22:17,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-11-28 00:22:17,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-11-28 00:22:17,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-11-28 00:22:17,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2019-11-28 00:22:17,328 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2019-11-28 00:22:17,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:17,329 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2019-11-28 00:22:17,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 00:22:17,329 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2019-11-28 00:22:17,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 00:22:17,330 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:17,331 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] [2019-11-28 00:22:17,331 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:17,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:17,331 INFO L82 PathProgramCache]: Analyzing trace with hash 691260675, now seen corresponding path program 1 times [2019-11-28 00:22:17,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:17,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491705334] [2019-11-28 00:22:17,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:17,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:22:17,478 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491705334] [2019-11-28 00:22:17,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:17,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 00:22:17,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732802587] [2019-11-28 00:22:17,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 00:22:17,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:17,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 00:22:17,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 00:22:17,481 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand 5 states. [2019-11-28 00:22:17,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:17,598 INFO L93 Difference]: Finished difference Result 133 states and 195 transitions. [2019-11-28 00:22:17,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 00:22:17,599 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-28 00:22:17,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:17,600 INFO L225 Difference]: With dead ends: 133 [2019-11-28 00:22:17,601 INFO L226 Difference]: Without dead ends: 82 [2019-11-28 00:22:17,601 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-28 00:22:17,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-11-28 00:22:17,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2019-11-28 00:22:17,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-28 00:22:17,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2019-11-28 00:22:17,614 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2019-11-28 00:22:17,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:17,615 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2019-11-28 00:22:17,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 00:22:17,615 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2019-11-28 00:22:17,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-28 00:22:17,616 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:17,616 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] [2019-11-28 00:22:17,617 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:17,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:17,617 INFO L82 PathProgramCache]: Analyzing trace with hash 2134675258, now seen corresponding path program 1 times [2019-11-28 00:22:17,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:17,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637995865] [2019-11-28 00:22:17,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:17,726 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 00:22:17,727 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637995865] [2019-11-28 00:22:17,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:17,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:22:17,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064304747] [2019-11-28 00:22:17,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 00:22:17,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:17,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 00:22:17,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:22:17,731 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand 3 states. [2019-11-28 00:22:17,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:17,791 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2019-11-28 00:22:17,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 00:22:17,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-28 00:22:17,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:17,794 INFO L225 Difference]: With dead ends: 173 [2019-11-28 00:22:17,794 INFO L226 Difference]: Without dead ends: 101 [2019-11-28 00:22:17,795 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 00:22:17,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-11-28 00:22:17,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2019-11-28 00:22:17,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-28 00:22:17,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2019-11-28 00:22:17,820 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2019-11-28 00:22:17,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:17,820 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2019-11-28 00:22:17,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 00:22:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2019-11-28 00:22:17,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-28 00:22:17,824 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:17,825 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] [2019-11-28 00:22:17,825 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:17,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:17,826 INFO L82 PathProgramCache]: Analyzing trace with hash 127920088, now seen corresponding path program 1 times [2019-11-28 00:22:17,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:17,827 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299793345] [2019-11-28 00:22:17,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:17,957 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 00:22:17,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299793345] [2019-11-28 00:22:17,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:17,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 00:22:17,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764358129] [2019-11-28 00:22:17,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 00:22:17,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:17,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 00:22:17,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 00:22:17,960 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 5 states. [2019-11-28 00:22:18,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:18,101 INFO L93 Difference]: Finished difference Result 515 states and 751 transitions. [2019-11-28 00:22:18,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 00:22:18,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-28 00:22:18,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:18,105 INFO L225 Difference]: With dead ends: 515 [2019-11-28 00:22:18,106 INFO L226 Difference]: Without dead ends: 422 [2019-11-28 00:22:18,107 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 [2019-11-28 00:22:18,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2019-11-28 00:22:18,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 167. [2019-11-28 00:22:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-11-28 00:22:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 233 transitions. [2019-11-28 00:22:18,150 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 233 transitions. Word has length 27 [2019-11-28 00:22:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:18,150 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 233 transitions. [2019-11-28 00:22:18,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 00:22:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 233 transitions. [2019-11-28 00:22:18,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-28 00:22:18,155 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:18,155 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] [2019-11-28 00:22:18,155 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:18,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:18,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1572343654, now seen corresponding path program 1 times [2019-11-28 00:22:18,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:18,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414492830] [2019-11-28 00:22:18,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:22:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:22:18,372 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 00:22:18,372 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 00:22:18,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:22:18 BoogieIcfgContainer [2019-11-28 00:22:18,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 00:22:18,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 00:22:18,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 00:22:18,527 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 00:22:18,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:22:16" (3/4) ... [2019-11-28 00:22:18,530 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 00:22:18,620 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 00:22:18,620 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 00:22:18,623 INFO L168 Benchmark]: Toolchain (without parser) took 3940.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 960.4 MB in the beginning and 901.8 MB in the end (delta: 58.5 MB). Peak memory consumption was 200.6 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:18,624 INFO L168 Benchmark]: CDTParser took 0.56 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 00:22:18,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:18,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.97 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 00:22:18,626 INFO L168 Benchmark]: Boogie Preprocessor took 55.10 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 00:22:18,626 INFO L168 Benchmark]: RCFGBuilder took 1140.56 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: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:18,627 INFO L168 Benchmark]: TraceAbstraction took 1887.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 908.4 MB in the end (delta: 138.3 MB). Peak memory consumption was 138.3 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:18,627 INFO L168 Benchmark]: Witness Printer took 93.77 ms. Allocated memory is still 1.2 GB. Free memory was 908.4 MB in the beginning and 901.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:18,631 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 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 671.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.97 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 55.10 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 1140.56 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: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1887.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 908.4 MB in the end (delta: 138.3 MB). Peak memory consumption was 138.3 MB. Max. memory is 11.5 GB. * Witness Printer took 93.77 ms. Allocated memory is still 1.2 GB. Free memory was 908.4 MB in the beginning and 901.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 769]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L124] int pumpRunning = 0; [L125] int systemActive = 1; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L812] int waterLevel = 1; [L813] int methaneLevelCritical = 0; [L915] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L988] int retValue_acc ; [L989] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L803] int retValue_acc ; [L806] retValue_acc = 1 [L807] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L995] tmp = valid_product() [L997] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L830] COND TRUE waterLevel < 2 [L831] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L343] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L350] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L132] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L139] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L366] int tmp ; [L367] int tmp___0 ; [L368] int tmp___1 ; [L851] int retValue_acc ; [L854] retValue_acc = methaneLevelCritical [L855] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L372] tmp = isMethaneLevelCritical() [L374] COND FALSE !(\read(tmp)) [L883] int retValue_acc ; [L886] retValue_acc = waterLevel [L887] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L378] tmp___0 = getWaterLevel() [L380] COND TRUE tmp___0 == 2 [L257] int retValue_acc ; [L260] retValue_acc = pumpRunning [L261] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L382] tmp___1 = isPumpRunning() [L384] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L769] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 143 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 581 SDtfs, 753 SDslu, 413 SDs, 0 SdLazy, 67 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 261 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 4791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...