./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product39.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_product39.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 fda6d17e7962e4df44156ef592d697d85d9dd989 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 00:21:53,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:21:53,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:21:53,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:21:53,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:21:53,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:21:53,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:21:53,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:21:53,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:21:53,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:21:53,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:21:53,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:21:53,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:21:53,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:21:53,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:21:53,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:21:53,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:21:53,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:21:53,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:21:53,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:21:53,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:21:53,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:21:53,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:21:53,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:21:53,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:21:53,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:21:53,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:21:53,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:21:53,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:21:53,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:21:53,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:21:53,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:21:53,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:21:53,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:21:53,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:21:53,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:21:53,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:21:53,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:21:53,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:21:53,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:21:53,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:21:53,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 00:21:53,224 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:21:53,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:21:53,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:21:53,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:21:53,226 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:21:53,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:21:53,226 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:21:53,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 00:21:53,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:21:53,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:21:53,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:21:53,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:21:53,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:21:53,229 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:21:53,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:21:53,229 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:21:53,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:21:53,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:21:53,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:21:53,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:21:53,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:21:53,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:21:53,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:21:53,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:21:53,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:21:53,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 00:21:53,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 00:21:53,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:21:53,232 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 -> fda6d17e7962e4df44156ef592d697d85d9dd989 [2019-11-28 00:21:53,546 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:21:53,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:21:53,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:21:53,572 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:21:53,573 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:21:53,574 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2019-11-28 00:21:53,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3292b3a9/bf0e7f43ec0c48b3ac27ec82657c6af3/FLAGe1b70f3cf [2019-11-28 00:21:54,237 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:21:54,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2019-11-28 00:21:54,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3292b3a9/bf0e7f43ec0c48b3ac27ec82657c6af3/FLAGe1b70f3cf [2019-11-28 00:21:54,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3292b3a9/bf0e7f43ec0c48b3ac27ec82657c6af3 [2019-11-28 00:21:54,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:21:54,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:21:54,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:21:54,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:21:54,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:21:54,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:21:54" (1/1) ... [2019-11-28 00:21:54,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281e5afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:54, skipping insertion in model container [2019-11-28 00:21:54,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:21:54" (1/1) ... [2019-11-28 00:21:54,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:21:54,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:21:55,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:21:55,047 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:21:55,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:21:55,166 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:21:55,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:55 WrapperNode [2019-11-28 00:21:55,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:21:55,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:21:55,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:21:55,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:21:55,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:55" (1/1) ... [2019-11-28 00:21:55,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:55" (1/1) ... [2019-11-28 00:21:55,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:21:55,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:21:55,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:21:55,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:21:55,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:55" (1/1) ... [2019-11-28 00:21:55,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:55" (1/1) ... [2019-11-28 00:21:55,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:55" (1/1) ... [2019-11-28 00:21:55,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:55" (1/1) ... [2019-11-28 00:21:55,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:55" (1/1) ... [2019-11-28 00:21:55,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:55" (1/1) ... [2019-11-28 00:21:55,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:55" (1/1) ... [2019-11-28 00:21:55,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:21:55,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:21:55,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:21:55,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:21:55,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:55" (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 00:21:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 00:21:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 00:21:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:21:55,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:21:56,305 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 00:21:56,305 INFO L297 CfgBuilder]: Removed 166 assume(true) statements. [2019-11-28 00:21:56,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:56 BoogieIcfgContainer [2019-11-28 00:21:56,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 00:21:56,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 00:21:56,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 00:21:56,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 00:21:56,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:21:54" (1/3) ... [2019-11-28 00:21:56,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6a5f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:21:56, skipping insertion in model container [2019-11-28 00:21:56,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:55" (2/3) ... [2019-11-28 00:21:56,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6a5f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:21:56, skipping insertion in model container [2019-11-28 00:21:56,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:56" (3/3) ... [2019-11-28 00:21:56,316 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2019-11-28 00:21:56,326 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 00:21:56,333 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 00:21:56,344 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 00:21:56,367 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 00:21:56,367 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 00:21:56,367 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 00:21:56,368 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 00:21:56,368 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 00:21:56,368 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 00:21:56,368 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 00:21:56,368 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 00:21:56,388 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-11-28 00:21:56,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 00:21:56,396 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:56,398 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 00:21:56,398 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:56,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:56,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1240734729, now seen corresponding path program 1 times [2019-11-28 00:21:56,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:56,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338661634] [2019-11-28 00:21:56,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:56,756 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 00:21:56,757 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338661634] [2019-11-28 00:21:56,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:56,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:21:56,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114285425] [2019-11-28 00:21:56,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 00:21:56,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:56,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 00:21:56,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 00:21:56,785 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-11-28 00:21:56,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:56,827 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-11-28 00:21:56,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 00:21:56,829 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-28 00:21:56,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:56,844 INFO L225 Difference]: With dead ends: 232 [2019-11-28 00:21:56,845 INFO L226 Difference]: Without dead ends: 115 [2019-11-28 00:21:56,849 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 00:21:56,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-28 00:21:56,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-11-28 00:21:56,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-28 00:21:56,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-11-28 00:21:56,903 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18 [2019-11-28 00:21:56,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:56,904 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-11-28 00:21:56,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 00:21:56,904 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-11-28 00:21:56,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 00:21:56,905 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:56,906 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 00:21:56,906 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:56,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:56,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1444708423, now seen corresponding path program 1 times [2019-11-28 00:21:56,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:56,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806975785] [2019-11-28 00:21:56,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:57,024 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 00:21:57,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806975785] [2019-11-28 00:21:57,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:57,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 00:21:57,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140728425] [2019-11-28 00:21:57,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 00:21:57,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:57,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 00:21:57,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:21:57,030 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2019-11-28 00:21:57,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:57,060 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2019-11-28 00:21:57,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 00:21:57,061 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 00:21:57,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:57,062 INFO L225 Difference]: With dead ends: 115 [2019-11-28 00:21:57,063 INFO L226 Difference]: Without dead ends: 49 [2019-11-28 00:21:57,065 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 00:21:57,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-28 00:21:57,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-11-28 00:21:57,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-11-28 00:21:57,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-11-28 00:21:57,081 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2019-11-28 00:21:57,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:57,082 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-11-28 00:21:57,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 00:21:57,082 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-11-28 00:21:57,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 00:21:57,083 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:57,083 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 00:21:57,083 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:57,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:57,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1084287686, now seen corresponding path program 1 times [2019-11-28 00:21:57,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:57,085 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31044087] [2019-11-28 00:21:57,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:57,184 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 00:21:57,184 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31044087] [2019-11-28 00:21:57,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:57,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:21:57,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531506176] [2019-11-28 00:21:57,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 00:21:57,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:57,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 00:21:57,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:21:57,188 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 3 states. [2019-11-28 00:21:57,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:57,215 INFO L93 Difference]: Finished difference Result 135 states and 201 transitions. [2019-11-28 00:21:57,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 00:21:57,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-28 00:21:57,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:57,220 INFO L225 Difference]: With dead ends: 135 [2019-11-28 00:21:57,220 INFO L226 Difference]: Without dead ends: 92 [2019-11-28 00:21:57,223 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 00:21:57,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-28 00:21:57,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2019-11-28 00:21:57,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-28 00:21:57,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 131 transitions. [2019-11-28 00:21:57,246 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 131 transitions. Word has length 24 [2019-11-28 00:21:57,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:57,246 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 131 transitions. [2019-11-28 00:21:57,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 00:21:57,252 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 131 transitions. [2019-11-28 00:21:57,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-28 00:21:57,255 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:57,255 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 00:21:57,255 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:57,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:57,256 INFO L82 PathProgramCache]: Analyzing trace with hash -857120593, now seen corresponding path program 1 times [2019-11-28 00:21:57,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:57,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702740439] [2019-11-28 00:21:57,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:57,333 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 00:21:57,333 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702740439] [2019-11-28 00:21:57,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:57,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:21:57,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271194873] [2019-11-28 00:21:57,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 00:21:57,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:57,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 00:21:57,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:21:57,336 INFO L87 Difference]: Start difference. First operand 88 states and 131 transitions. Second operand 3 states. [2019-11-28 00:21:57,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:57,412 INFO L93 Difference]: Finished difference Result 215 states and 324 transitions. [2019-11-28 00:21:57,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 00:21:57,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-28 00:21:57,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:57,415 INFO L225 Difference]: With dead ends: 215 [2019-11-28 00:21:57,415 INFO L226 Difference]: Without dead ends: 133 [2019-11-28 00:21:57,416 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 00:21:57,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-28 00:21:57,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2019-11-28 00:21:57,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-11-28 00:21:57,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 191 transitions. [2019-11-28 00:21:57,431 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 191 transitions. Word has length 26 [2019-11-28 00:21:57,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:57,432 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 191 transitions. [2019-11-28 00:21:57,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 00:21:57,433 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 191 transitions. [2019-11-28 00:21:57,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-28 00:21:57,434 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:57,434 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 00:21:57,435 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:57,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:57,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1307189925, now seen corresponding path program 1 times [2019-11-28 00:21:57,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:57,436 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822671989] [2019-11-28 00:21:57,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:57,519 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 00:21:57,519 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822671989] [2019-11-28 00:21:57,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:57,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 00:21:57,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136921191] [2019-11-28 00:21:57,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 00:21:57,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:57,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 00:21:57,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 00:21:57,522 INFO L87 Difference]: Start difference. First operand 131 states and 191 transitions. Second operand 5 states. [2019-11-28 00:21:57,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:57,863 INFO L93 Difference]: Finished difference Result 691 states and 1025 transitions. [2019-11-28 00:21:57,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 00:21:57,865 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-28 00:21:57,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:57,872 INFO L225 Difference]: With dead ends: 691 [2019-11-28 00:21:57,875 INFO L226 Difference]: Without dead ends: 566 [2019-11-28 00:21:57,878 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 00:21:57,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2019-11-28 00:21:57,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 222. [2019-11-28 00:21:57,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-11-28 00:21:57,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 314 transitions. [2019-11-28 00:21:57,945 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 314 transitions. Word has length 27 [2019-11-28 00:21:57,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:57,946 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 314 transitions. [2019-11-28 00:21:57,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 00:21:57,946 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 314 transitions. [2019-11-28 00:21:57,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-28 00:21:57,954 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:57,954 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 00:21:57,954 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:57,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:57,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1287513629, now seen corresponding path program 1 times [2019-11-28 00:21:57,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:57,956 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962017685] [2019-11-28 00:21:57,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:21:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:21:58,207 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 00:21:58,207 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 00:21:58,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:21:58 BoogieIcfgContainer [2019-11-28 00:21:58,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 00:21:58,344 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 00:21:58,345 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 00:21:58,347 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 00:21:58,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:56" (3/4) ... [2019-11-28 00:21:58,350 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 00:21:58,467 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 00:21:58,467 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 00:21:58,476 INFO L168 Benchmark]: Toolchain (without parser) took 3951.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 959.0 MB in the beginning and 902.6 MB in the end (delta: 56.4 MB). Peak memory consumption was 200.6 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:58,477 INFO L168 Benchmark]: CDTParser took 0.28 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 00:21:58,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:58,478 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:58,479 INFO L168 Benchmark]: Boogie Preprocessor took 51.70 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 00:21:58,479 INFO L168 Benchmark]: RCFGBuilder took 1012.31 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: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:58,480 INFO L168 Benchmark]: TraceAbstraction took 2035.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 916.0 MB in the end (delta: 133.4 MB). Peak memory consumption was 133.4 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:58,481 INFO L168 Benchmark]: Witness Printer took 122.75 ms. Allocated memory is still 1.2 GB. Free memory was 916.0 MB in the beginning and 902.6 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:58,483 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 645.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.70 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 1012.31 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: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2035.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 916.0 MB in the end (delta: 133.4 MB). Peak memory consumption was 133.4 MB. Max. memory is 11.5 GB. * Witness Printer took 122.75 ms. Allocated memory is still 1.2 GB. Free memory was 916.0 MB in the beginning and 902.6 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 451]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L625] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L896] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L390] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L392] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L398] tmp = __VERIFIER_nondet_int() [L400] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___2)) [L424] tmp___1 = __VERIFIER_nondet_int() [L426] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L367] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L374] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L193] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L925] tmp = isMethaneLevelCritical() [L927] COND FALSE !(\read(tmp)) [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L931] tmp___0 = getWaterLevel() [L933] COND TRUE tmp___0 == 2 [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L935] tmp___1 = isPumpRunning() [L937] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L451] __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, 119 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 495 SDtfs, 433 SDslu, 383 SDs, 0 SdLazy, 63 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred 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, 350 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5251 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...