./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product33.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 3e754f75ca06d39e1069a0bad88498ddd2436bb7 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 18:56:56,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:56:56,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:56:56,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:56:56,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:56:56,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:56:56,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:56:56,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:56:56,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:56:56,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:56:56,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:56:56,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:56:56,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:56:56,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:56:56,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:56:56,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:56:56,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:56:56,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:56:56,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:56:56,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:56:56,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:56:56,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:56:56,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:56:56,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:56:56,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:56:56,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:56:56,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:56:56,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:56:56,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:56:56,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:56:56,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:56:56,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:56:56,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:56:56,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:56:56,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:56:56,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:56:56,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:56:56,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:56:56,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:56:56,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:56:56,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:56:56,295 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 18:56:56,320 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:56:56,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:56:56,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:56:56,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:56:56,325 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:56:56,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:56:56,326 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:56:56,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 18:56:56,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:56:56,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:56:56,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:56:56,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:56:56,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:56:56,329 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:56:56,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:56:56,329 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:56:56,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:56:56,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:56:56,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:56:56,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:56:56,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:56:56,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:56:56,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:56:56,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:56:56,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:56:56,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 18:56:56,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 18:56:56,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:56:56,333 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 -> 3e754f75ca06d39e1069a0bad88498ddd2436bb7 [2019-11-19 18:56:56,636 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:56:56,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:56:56,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:56:56,662 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:56:56,662 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:56:56,663 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2019-11-19 18:56:56,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad92c4c0/65435e0982794f7c80d91e874b185c78/FLAGfcd9a28e4 [2019-11-19 18:56:57,296 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:56:57,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2019-11-19 18:56:57,319 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad92c4c0/65435e0982794f7c80d91e874b185c78/FLAGfcd9a28e4 [2019-11-19 18:56:57,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad92c4c0/65435e0982794f7c80d91e874b185c78 [2019-11-19 18:56:57,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:56:57,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:56:57,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:56:57,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:56:57,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:56:57,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:56:57" (1/1) ... [2019-11-19 18:56:57,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714c073b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:57, skipping insertion in model container [2019-11-19 18:56:57,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:56:57" (1/1) ... [2019-11-19 18:56:57,592 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:56:57,635 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:56:58,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:56:58,083 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:56:58,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:56:58,215 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:56:58,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58 WrapperNode [2019-11-19 18:56:58,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:56:58,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:56:58,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:56:58,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:56:58,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2019-11-19 18:56:58,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2019-11-19 18:56:58,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:56:58,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:56:58,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:56:58,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:56:58,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2019-11-19 18:56:58,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2019-11-19 18:56:58,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2019-11-19 18:56:58,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2019-11-19 18:56:58,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2019-11-19 18:56:58,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2019-11-19 18:56:58,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2019-11-19 18:56:58,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:56:58,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:56:58,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:56:58,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:56:58,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:56:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 18:56:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 18:56:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:56:58,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:56:59,100 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:56:59,100 INFO L285 CfgBuilder]: Removed 96 assume(true) statements. [2019-11-19 18:56:59,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:56:59 BoogieIcfgContainer [2019-11-19 18:56:59,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:56:59,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:56:59,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:56:59,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:56:59,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:56:57" (1/3) ... [2019-11-19 18:56:59,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a597b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:56:59, skipping insertion in model container [2019-11-19 18:56:59,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (2/3) ... [2019-11-19 18:56:59,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a597b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:56:59, skipping insertion in model container [2019-11-19 18:56:59,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:56:59" (3/3) ... [2019-11-19 18:56:59,110 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2019-11-19 18:56:59,120 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:56:59,127 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-19 18:56:59,138 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-19 18:56:59,164 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:56:59,164 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:56:59,164 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:56:59,165 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:56:59,165 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:56:59,165 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:56:59,166 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:56:59,166 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:56:59,183 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2019-11-19 18:56:59,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-19 18:56:59,190 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:56:59,191 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:56:59,192 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:56:59,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:56:59,198 INFO L82 PathProgramCache]: Analyzing trace with hash 768274677, now seen corresponding path program 1 times [2019-11-19 18:56:59,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:56:59,207 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418435229] [2019-11-19 18:56:59,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:56:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:56:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:56:59,425 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418435229] [2019-11-19 18:56:59,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:56:59,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 18:56:59,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145412641] [2019-11-19 18:56:59,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 18:56:59,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:56:59,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 18:56:59,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 18:56:59,450 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2019-11-19 18:56:59,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:56:59,479 INFO L93 Difference]: Finished difference Result 150 states and 227 transitions. [2019-11-19 18:56:59,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 18:56:59,481 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-19 18:56:59,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:56:59,493 INFO L225 Difference]: With dead ends: 150 [2019-11-19 18:56:59,493 INFO L226 Difference]: Without dead ends: 74 [2019-11-19 18:56:59,497 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 18:56:59,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-11-19 18:56:59,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-11-19 18:56:59,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-19 18:56:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2019-11-19 18:56:59,538 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2019-11-19 18:56:59,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:56:59,538 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2019-11-19 18:56:59,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 18:56:59,539 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2019-11-19 18:56:59,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-19 18:56:59,540 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:56:59,540 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:56:59,540 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:56:59,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:56:59,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1484097871, now seen corresponding path program 1 times [2019-11-19 18:56:59,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:56:59,542 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725099099] [2019-11-19 18:56:59,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:56:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:56:59,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:56:59,663 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725099099] [2019-11-19 18:56:59,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:56:59,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 18:56:59,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387987859] [2019-11-19 18:56:59,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 18:56:59,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:56:59,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 18:56:59,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:56:59,670 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 3 states. [2019-11-19 18:56:59,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:56:59,691 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2019-11-19 18:56:59,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 18:56:59,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-19 18:56:59,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:56:59,694 INFO L225 Difference]: With dead ends: 74 [2019-11-19 18:56:59,695 INFO L226 Difference]: Without dead ends: 34 [2019-11-19 18:56:59,696 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:56:59,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-19 18:56:59,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-19 18:56:59,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-19 18:56:59,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2019-11-19 18:56:59,708 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2019-11-19 18:56:59,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:56:59,708 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2019-11-19 18:56:59,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 18:56:59,709 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2019-11-19 18:56:59,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-19 18:56:59,711 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:56:59,711 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:56:59,712 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:56:59,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:56:59,712 INFO L82 PathProgramCache]: Analyzing trace with hash 670124178, now seen corresponding path program 1 times [2019-11-19 18:56:59,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:56:59,713 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926978663] [2019-11-19 18:56:59,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:56:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:56:59,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:56:59,857 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926978663] [2019-11-19 18:56:59,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:56:59,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 18:56:59,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655362173] [2019-11-19 18:56:59,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 18:56:59,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:56:59,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 18:56:59,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:56:59,859 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 3 states. [2019-11-19 18:56:59,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:56:59,868 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2019-11-19 18:56:59,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 18:56:59,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-11-19 18:56:59,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:56:59,870 INFO L225 Difference]: With dead ends: 62 [2019-11-19 18:56:59,870 INFO L226 Difference]: Without dead ends: 34 [2019-11-19 18:56:59,871 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 [2019-11-19 18:56:59,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-19 18:56:59,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-19 18:56:59,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-19 18:56:59,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2019-11-19 18:56:59,877 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2019-11-19 18:56:59,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:56:59,878 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2019-11-19 18:56:59,878 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 18:56:59,879 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2019-11-19 18:56:59,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-19 18:56:59,882 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:56:59,882 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:56:59,882 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:56:59,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:56:59,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1804645939, now seen corresponding path program 1 times [2019-11-19 18:56:59,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:56:59,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718794402] [2019-11-19 18:56:59,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:56:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:00,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:00,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718794402] [2019-11-19 18:57:00,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:00,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 18:57:00,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717694033] [2019-11-19 18:57:00,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 18:57:00,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:00,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 18:57:00,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:57:00,005 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2019-11-19 18:57:00,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:00,046 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2019-11-19 18:57:00,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 18:57:00,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-19 18:57:00,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:00,048 INFO L225 Difference]: With dead ends: 83 [2019-11-19 18:57:00,048 INFO L226 Difference]: Without dead ends: 55 [2019-11-19 18:57:00,049 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 [2019-11-19 18:57:00,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-19 18:57:00,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2019-11-19 18:57:00,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-19 18:57:00,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2019-11-19 18:57:00,064 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2019-11-19 18:57:00,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:00,064 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2019-11-19 18:57:00,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 18:57:00,065 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2019-11-19 18:57:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-19 18:57:00,066 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:00,070 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:57:00,070 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:00,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:00,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1746371458, now seen corresponding path program 1 times [2019-11-19 18:57:00,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:00,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092082816] [2019-11-19 18:57:00,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:00,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:00,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092082816] [2019-11-19 18:57:00,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:00,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 18:57:00,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797681306] [2019-11-19 18:57:00,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 18:57:00,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:00,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 18:57:00,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 18:57:00,158 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand 5 states. [2019-11-19 18:57:00,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:00,226 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2019-11-19 18:57:00,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 18:57:00,227 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-19 18:57:00,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:00,228 INFO L225 Difference]: With dead ends: 139 [2019-11-19 18:57:00,228 INFO L226 Difference]: Without dead ends: 92 [2019-11-19 18:57:00,229 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-19 18:57:00,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-19 18:57:00,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2019-11-19 18:57:00,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-19 18:57:00,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2019-11-19 18:57:00,239 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2019-11-19 18:57:00,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:00,239 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2019-11-19 18:57:00,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 18:57:00,240 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2019-11-19 18:57:00,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-19 18:57:00,241 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:00,242 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:57:00,242 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:00,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:00,243 INFO L82 PathProgramCache]: Analyzing trace with hash 916139585, now seen corresponding path program 1 times [2019-11-19 18:57:00,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:00,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436559005] [2019-11-19 18:57:00,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:00,330 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436559005] [2019-11-19 18:57:00,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:00,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 18:57:00,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691539452] [2019-11-19 18:57:00,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 18:57:00,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:00,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 18:57:00,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 18:57:00,333 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand 5 states. [2019-11-19 18:57:00,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:00,441 INFO L93 Difference]: Finished difference Result 270 states and 384 transitions. [2019-11-19 18:57:00,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 18:57:00,441 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-19 18:57:00,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:00,445 INFO L225 Difference]: With dead ends: 270 [2019-11-19 18:57:00,445 INFO L226 Difference]: Without dead ends: 220 [2019-11-19 18:57:00,447 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-19 18:57:00,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-11-19 18:57:00,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 100. [2019-11-19 18:57:00,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-11-19 18:57:00,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2019-11-19 18:57:00,479 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 29 [2019-11-19 18:57:00,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:00,480 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2019-11-19 18:57:00,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 18:57:00,480 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2019-11-19 18:57:00,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-19 18:57:00,486 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:00,486 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:57:00,486 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:00,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:00,487 INFO L82 PathProgramCache]: Analyzing trace with hash -863305781, now seen corresponding path program 1 times [2019-11-19 18:57:00,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:00,487 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639822755] [2019-11-19 18:57:00,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:00,557 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639822755] [2019-11-19 18:57:00,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:00,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 18:57:00,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783385692] [2019-11-19 18:57:00,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 18:57:00,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:00,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 18:57:00,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 18:57:00,566 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand 5 states. [2019-11-19 18:57:00,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:00,685 INFO L93 Difference]: Finished difference Result 280 states and 386 transitions. [2019-11-19 18:57:00,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-19 18:57:00,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-19 18:57:00,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:00,689 INFO L225 Difference]: With dead ends: 280 [2019-11-19 18:57:00,690 INFO L226 Difference]: Without dead ends: 278 [2019-11-19 18:57:00,690 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-19 18:57:00,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-11-19 18:57:00,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2019-11-19 18:57:00,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-11-19 18:57:00,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 136 transitions. [2019-11-19 18:57:00,715 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 136 transitions. Word has length 30 [2019-11-19 18:57:00,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:00,715 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 136 transitions. [2019-11-19 18:57:00,715 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 18:57:00,716 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 136 transitions. [2019-11-19 18:57:00,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-19 18:57:00,720 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:00,720 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:57:00,721 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:00,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:00,721 INFO L82 PathProgramCache]: Analyzing trace with hash 376123462, now seen corresponding path program 1 times [2019-11-19 18:57:00,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:00,722 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796664016] [2019-11-19 18:57:00,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:00,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:00,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796664016] [2019-11-19 18:57:00,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:00,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 18:57:00,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916426418] [2019-11-19 18:57:00,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 18:57:00,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:00,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 18:57:00,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 18:57:00,787 INFO L87 Difference]: Start difference. First operand 100 states and 136 transitions. Second operand 5 states. [2019-11-19 18:57:00,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:00,855 INFO L93 Difference]: Finished difference Result 276 states and 374 transitions. [2019-11-19 18:57:00,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 18:57:00,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-19 18:57:00,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:00,857 INFO L225 Difference]: With dead ends: 276 [2019-11-19 18:57:00,857 INFO L226 Difference]: Without dead ends: 182 [2019-11-19 18:57:00,858 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-19 18:57:00,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-11-19 18:57:00,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 104. [2019-11-19 18:57:00,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-19 18:57:00,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 140 transitions. [2019-11-19 18:57:00,880 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 140 transitions. Word has length 30 [2019-11-19 18:57:00,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:00,880 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 140 transitions. [2019-11-19 18:57:00,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 18:57:00,880 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 140 transitions. [2019-11-19 18:57:00,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-19 18:57:00,881 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:00,881 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:57:00,881 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:00,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:00,882 INFO L82 PathProgramCache]: Analyzing trace with hash 634288900, now seen corresponding path program 1 times [2019-11-19 18:57:00,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:00,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145457010] [2019-11-19 18:57:00,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:57:00,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:57:00,940 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145457010] [2019-11-19 18:57:00,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:57:00,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 18:57:00,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367152385] [2019-11-19 18:57:00,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 18:57:00,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:57:00,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 18:57:00,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:57:00,942 INFO L87 Difference]: Start difference. First operand 104 states and 140 transitions. Second operand 3 states. [2019-11-19 18:57:00,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:57:00,971 INFO L93 Difference]: Finished difference Result 250 states and 336 transitions. [2019-11-19 18:57:00,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 18:57:00,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-11-19 18:57:00,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:57:00,973 INFO L225 Difference]: With dead ends: 250 [2019-11-19 18:57:00,973 INFO L226 Difference]: Without dead ends: 152 [2019-11-19 18:57:00,974 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 [2019-11-19 18:57:00,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-19 18:57:00,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-11-19 18:57:00,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-19 18:57:00,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 198 transitions. [2019-11-19 18:57:00,992 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 198 transitions. Word has length 30 [2019-11-19 18:57:00,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:57:00,992 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 198 transitions. [2019-11-19 18:57:00,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 18:57:00,993 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 198 transitions. [2019-11-19 18:57:00,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-19 18:57:00,993 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:57:00,994 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:57:00,994 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:57:00,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:57:00,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1373527294, now seen corresponding path program 1 times [2019-11-19 18:57:00,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:57:00,995 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201275806] [2019-11-19 18:57:00,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:57:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:57:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:57:01,881 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 18:57:01,881 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 18:57:02,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:57:02 BoogieIcfgContainer [2019-11-19 18:57:02,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 18:57:02,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 18:57:02,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 18:57:02,008 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 18:57:02,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:56:59" (3/4) ... [2019-11-19 18:57:02,011 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 18:57:02,114 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 18:57:02,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 18:57:02,117 INFO L168 Benchmark]: Toolchain (without parser) took 4539.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.7 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -123.0 MB). Peak memory consumption was 96.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:02,117 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:57:02,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:02,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:02,119 INFO L168 Benchmark]: Boogie Preprocessor took 38.88 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. [2019-11-19 18:57:02,119 INFO L168 Benchmark]: RCFGBuilder took 776.38 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: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:02,120 INFO L168 Benchmark]: TraceAbstraction took 2904.07 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -34.4 MB). Peak memory consumption was 44.2 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:02,121 INFO L168 Benchmark]: Witness Printer took 106.96 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: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:57:02,123 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 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 638.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.88 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 776.38 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: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2904.07 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -34.4 MB). Peak memory consumption was 44.2 MB. Max. memory is 11.5 GB. * Witness Printer took 106.96 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: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 410]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int pumpRunning = 0; [L425] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L756] int retValue_acc ; [L757] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L674] int retValue_acc ; [L677] retValue_acc = 1 [L678] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L763] tmp = valid_product() [L765] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L581] int splverifierCounter ; [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L585] int tmp___2 ; [L588] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L590] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L592] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] tmp = __VERIFIER_nondet_int() [L600] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L608] tmp___0 = __VERIFIER_nondet_int() [L610] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L836] COND FALSE !(\read(methaneLevelCritical)) [L839] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L618] tmp___2 = __VERIFIER_nondet_int() [L620] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L432] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L439] COND TRUE \read(systemActive) [L461] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L464] COND TRUE ! pumpRunning [L558] int retValue_acc ; [L559] int tmp ; [L560] int tmp___0 ; [L886] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L889] COND FALSE !(waterLevel < 2) [L893] retValue_acc = 0 [L894] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L564] tmp = isHighWaterSensorDry() [L566] COND FALSE !(\read(tmp)) [L569] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L571] retValue_acc = tmp___0 [L572] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] tmp = isHighWaterLevel() [L468] COND TRUE \read(tmp) [L489] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L780] int tmp ; [L781] int tmp___0 ; [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L785] tmp = isMethaneLevelCritical() [L787] COND TRUE \read(tmp) [L513] int retValue_acc ; [L516] retValue_acc = pumpRunning [L517] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L789] tmp___0 = isPumpRunning() [L791] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L410] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 577 SDtfs, 704 SDslu, 767 SDs, 0 SdLazy, 102 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=9, 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, 9 MinimizatonAttempts, 414 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 12233 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...