./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product44.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_product44.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 35186e76d3512165346b803182d73298e94993df ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 00:21:57,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:21:57,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:21:57,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:21:57,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:21:57,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:21:57,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:21:57,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:21:57,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:21:57,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:21:57,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:21:57,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:21:57,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:21:57,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:21:57,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:21:57,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:21:57,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:21:57,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:21:57,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:21:57,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:21:57,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:21:57,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:21:57,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:21:57,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:21:57,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:21:57,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:21:57,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:21:57,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:21:57,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:21:57,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:21:57,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:21:57,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:21:57,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:21:57,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:21:57,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:21:57,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:21:57,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:21:57,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:21:57,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:21:57,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:21:57,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:21:57,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 00:21:57,131 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:21:57,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:21:57,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:21:57,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:21:57,133 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:21:57,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:21:57,134 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:21:57,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 00:21:57,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:21:57,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:21:57,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:21:57,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:21:57,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:21:57,136 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:21:57,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:21:57,136 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:21:57,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:21:57,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:21:57,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:21:57,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:21:57,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:21:57,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:21:57,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:21:57,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:21:57,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:21:57,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 00:21:57,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 00:21:57,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:21:57,140 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 -> 35186e76d3512165346b803182d73298e94993df [2019-11-28 00:21:57,461 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:21:57,475 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:21:57,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:21:57,481 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:21:57,481 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:21:57,482 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2019-11-28 00:21:57,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1cb00335/ac47059c8e3140e49e3d180f7f2cbc90/FLAG797cd345f [2019-11-28 00:21:58,089 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:21:58,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2019-11-28 00:21:58,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1cb00335/ac47059c8e3140e49e3d180f7f2cbc90/FLAG797cd345f [2019-11-28 00:21:58,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1cb00335/ac47059c8e3140e49e3d180f7f2cbc90 [2019-11-28 00:21:58,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:21:58,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:21:58,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:21:58,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:21:58,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:21:58,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:21:58" (1/1) ... [2019-11-28 00:21:58,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1dbb8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:58, skipping insertion in model container [2019-11-28 00:21:58,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:21:58" (1/1) ... [2019-11-28 00:21:58,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:21:58,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:21:59,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:21:59,051 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:21:59,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:21:59,215 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:21:59,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:59 WrapperNode [2019-11-28 00:21:59,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:21:59,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:21:59,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:21:59,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:21:59,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:59" (1/1) ... [2019-11-28 00:21:59,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:59" (1/1) ... [2019-11-28 00:21:59,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:21:59,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:21:59,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:21:59,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:21:59,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:59" (1/1) ... [2019-11-28 00:21:59,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:59" (1/1) ... [2019-11-28 00:21:59,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:59" (1/1) ... [2019-11-28 00:21:59,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:59" (1/1) ... [2019-11-28 00:21:59,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:59" (1/1) ... [2019-11-28 00:21:59,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:59" (1/1) ... [2019-11-28 00:21:59,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:59" (1/1) ... [2019-11-28 00:21:59,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:21:59,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:21:59,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:21:59,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:21:59,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:59" (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 00:21:59,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 00:21:59,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 00:21:59,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:21:59,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:22:00,261 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 00:22:00,262 INFO L297 CfgBuilder]: Removed 126 assume(true) statements. [2019-11-28 00:22:00,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:22:00 BoogieIcfgContainer [2019-11-28 00:22:00,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 00:22:00,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 00:22:00,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 00:22:00,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 00:22:00,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:21:58" (1/3) ... [2019-11-28 00:22:00,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b45c177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:22:00, skipping insertion in model container [2019-11-28 00:22:00,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:59" (2/3) ... [2019-11-28 00:22:00,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b45c177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:22:00, skipping insertion in model container [2019-11-28 00:22:00,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:22:00" (3/3) ... [2019-11-28 00:22:00,281 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2019-11-28 00:22:00,292 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 00:22:00,302 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 00:22:00,316 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 00:22:00,346 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 00:22:00,347 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 00:22:00,347 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 00:22:00,347 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 00:22:00,347 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 00:22:00,348 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 00:22:00,348 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 00:22:00,348 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 00:22:00,369 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-11-28 00:22:00,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 00:22:00,378 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:00,380 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 00:22:00,380 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:00,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:00,388 INFO L82 PathProgramCache]: Analyzing trace with hash -415609573, now seen corresponding path program 1 times [2019-11-28 00:22:00,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:00,399 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746986379] [2019-11-28 00:22:00,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:00,686 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 00:22:00,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746986379] [2019-11-28 00:22:00,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:00,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:22:00,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679282108] [2019-11-28 00:22:00,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 00:22:00,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:00,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 00:22:00,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 00:22:00,713 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 2 states. [2019-11-28 00:22:00,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:00,747 INFO L93 Difference]: Finished difference Result 184 states and 275 transitions. [2019-11-28 00:22:00,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 00:22:00,749 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-28 00:22:00,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:00,763 INFO L225 Difference]: With dead ends: 184 [2019-11-28 00:22:00,763 INFO L226 Difference]: Without dead ends: 91 [2019-11-28 00:22:00,767 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 00:22:00,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-28 00:22:00,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-11-28 00:22:00,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-28 00:22:00,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2019-11-28 00:22:00,815 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 18 [2019-11-28 00:22:00,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:00,815 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2019-11-28 00:22:00,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 00:22:00,815 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2019-11-28 00:22:00,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 00:22:00,817 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:00,817 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 00:22:00,818 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:00,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:00,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1326640326, now seen corresponding path program 1 times [2019-11-28 00:22:00,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:00,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450160341] [2019-11-28 00:22:00,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:00,924 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 00:22:00,925 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450160341] [2019-11-28 00:22:00,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:00,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 00:22:00,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358061321] [2019-11-28 00:22:00,927 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 00:22:00,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:00,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 00:22:00,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:22:00,929 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 3 states. [2019-11-28 00:22:00,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:00,942 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2019-11-28 00:22:00,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 00:22:00,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 00:22:00,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:00,948 INFO L225 Difference]: With dead ends: 91 [2019-11-28 00:22:00,948 INFO L226 Difference]: Without dead ends: 41 [2019-11-28 00:22:00,950 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 00:22:00,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-28 00:22:00,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-28 00:22:00,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-28 00:22:00,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2019-11-28 00:22:00,964 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2019-11-28 00:22:00,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:00,965 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2019-11-28 00:22:00,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 00:22:00,965 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2019-11-28 00:22:00,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 00:22:00,966 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:00,966 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 00:22:00,967 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:00,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:00,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1440289089, now seen corresponding path program 1 times [2019-11-28 00:22:00,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:00,969 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129380014] [2019-11-28 00:22:00,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:01,149 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 00:22:01,149 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129380014] [2019-11-28 00:22:01,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:01,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 00:22:01,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055733289] [2019-11-28 00:22:01,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 00:22:01,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:01,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 00:22:01,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 00:22:01,152 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 5 states. [2019-11-28 00:22:01,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:01,277 INFO L93 Difference]: Finished difference Result 101 states and 147 transitions. [2019-11-28 00:22:01,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 00:22:01,277 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-28 00:22:01,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:01,279 INFO L225 Difference]: With dead ends: 101 [2019-11-28 00:22:01,279 INFO L226 Difference]: Without dead ends: 66 [2019-11-28 00:22:01,283 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 00:22:01,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-28 00:22:01,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2019-11-28 00:22:01,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-28 00:22:01,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2019-11-28 00:22:01,295 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 24 [2019-11-28 00:22:01,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:01,295 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2019-11-28 00:22:01,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 00:22:01,296 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2019-11-28 00:22:01,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-28 00:22:01,297 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:01,297 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:22:01,297 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:01,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:01,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1072133948, now seen corresponding path program 1 times [2019-11-28 00:22:01,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:01,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478260010] [2019-11-28 00:22:01,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:01,393 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 00:22:01,394 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478260010] [2019-11-28 00:22:01,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:01,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:22:01,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877755213] [2019-11-28 00:22:01,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 00:22:01,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:01,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 00:22:01,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:22:01,397 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. Second operand 3 states. [2019-11-28 00:22:01,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:01,466 INFO L93 Difference]: Finished difference Result 141 states and 207 transitions. [2019-11-28 00:22:01,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 00:22:01,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-11-28 00:22:01,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:01,468 INFO L225 Difference]: With dead ends: 141 [2019-11-28 00:22:01,468 INFO L226 Difference]: Without dead ends: 85 [2019-11-28 00:22:01,469 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 00:22:01,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-11-28 00:22:01,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2019-11-28 00:22:01,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-28 00:22:01,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 118 transitions. [2019-11-28 00:22:01,482 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 118 transitions. Word has length 25 [2019-11-28 00:22:01,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:01,483 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 118 transitions. [2019-11-28 00:22:01,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 00:22:01,483 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 118 transitions. [2019-11-28 00:22:01,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-28 00:22:01,484 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:01,485 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 00:22:01,485 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:01,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:01,485 INFO L82 PathProgramCache]: Analyzing trace with hash -2003629676, now seen corresponding path program 1 times [2019-11-28 00:22:01,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:01,486 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40240930] [2019-11-28 00:22:01,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:01,592 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 00:22:01,592 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40240930] [2019-11-28 00:22:01,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:01,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 00:22:01,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388622223] [2019-11-28 00:22:01,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 00:22:01,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:01,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 00:22:01,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 00:22:01,596 INFO L87 Difference]: Start difference. First operand 83 states and 118 transitions. Second operand 5 states. [2019-11-28 00:22:01,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:01,769 INFO L93 Difference]: Finished difference Result 448 states and 656 transitions. [2019-11-28 00:22:01,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 00:22:01,770 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-28 00:22:01,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:01,774 INFO L225 Difference]: With dead ends: 448 [2019-11-28 00:22:01,774 INFO L226 Difference]: Without dead ends: 371 [2019-11-28 00:22:01,775 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 00:22:01,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2019-11-28 00:22:01,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 150. [2019-11-28 00:22:01,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-28 00:22:01,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 209 transitions. [2019-11-28 00:22:01,806 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 209 transitions. Word has length 27 [2019-11-28 00:22:01,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:01,806 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 209 transitions. [2019-11-28 00:22:01,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 00:22:01,807 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 209 transitions. [2019-11-28 00:22:01,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-28 00:22:01,808 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:01,809 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 00:22:01,809 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:01,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:01,810 INFO L82 PathProgramCache]: Analyzing trace with hash 591073878, now seen corresponding path program 1 times [2019-11-28 00:22:01,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:01,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897800019] [2019-11-28 00:22:01,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:22:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:22:01,973 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 00:22:01,974 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 00:22:02,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:22:02 BoogieIcfgContainer [2019-11-28 00:22:02,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 00:22:02,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 00:22:02,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 00:22:02,096 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 00:22:02,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:22:00" (3/4) ... [2019-11-28 00:22:02,100 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 00:22:02,205 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 00:22:02,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 00:22:02,208 INFO L168 Benchmark]: Toolchain (without parser) took 3833.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 955.0 MB in the beginning and 924.6 MB in the end (delta: 30.4 MB). Peak memory consumption was 189.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:02,208 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:22:02,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:02,209 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.89 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:02,210 INFO L168 Benchmark]: Boogie Preprocessor took 44.66 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 00:22:02,211 INFO L168 Benchmark]: RCFGBuilder took 926.61 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: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:02,211 INFO L168 Benchmark]: TraceAbstraction took 1828.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.3 MB in the end (delta: 129.3 MB). Peak memory consumption was 129.3 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:02,212 INFO L168 Benchmark]: Witness Printer took 109.72 ms. Allocated memory is still 1.2 GB. Free memory was 938.3 MB in the beginning and 924.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:02,215 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 841.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.89 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.66 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 926.61 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: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1828.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.3 MB in the end (delta: 129.3 MB). Peak memory consumption was 129.3 MB. Max. memory is 11.5 GB. * Witness Printer took 109.72 ms. Allocated memory is still 1.2 GB. Free memory was 938.3 MB in the beginning and 924.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 318]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L185] int waterLevel = 1; [L186] int methaneLevelCritical = 0; [L492] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L693] int pumpRunning = 0; [L694] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L305] int retValue_acc ; [L308] retValue_acc = 1 [L309] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L887] int splverifierCounter ; [L888] int tmp ; [L889] int tmp___0 ; [L890] int tmp___1 ; [L891] int tmp___2 ; [L894] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L896] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L898] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] tmp = __VERIFIER_nondet_int() [L906] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L203] COND TRUE waterLevel < 2 [L204] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L914] tmp___0 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L924] tmp___2 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___2)) [L932] tmp___1 = __VERIFIER_nondet_int() [L934] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L866] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L873] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L700] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L707] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L224] int retValue_acc ; [L227] retValue_acc = methaneLevelCritical [L228] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L161] tmp___0 = getWaterLevel() [L163] COND TRUE tmp___0 == 2 [L799] int retValue_acc ; [L802] retValue_acc = pumpRunning [L803] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L165] tmp___1 = isPumpRunning() [L167] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L318] __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, 95 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 393 SDtfs, 570 SDslu, 301 SDs, 0 SdLazy, 58 SolverSat, 16 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=150occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 227 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 4660 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...