./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/large_const.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/large_const.i -s /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer --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 b03e1cb325e2c3a8ef30197a8e07012b3a728d97 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:36,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:36,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:36,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:36,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:36,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:36,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:36,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:36,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:36,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:36,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:36,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:36,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:36,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:36,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:36,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:36,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:36,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:36,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:36,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:36,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:36,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:36,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:36,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:36,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:36,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:36,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:36,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:36,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:36,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:36,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:36,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:36,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:36,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:36,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:36,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:36,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:36,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:36,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:36,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:36,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:36,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:58:36,381 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:36,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:36,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:36,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:36,382 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:36,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:36,383 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:36,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:36,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:36,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:36,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:36,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:36,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:36,384 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:36,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:36,384 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:36,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:36,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:36,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:36,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:36,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:36,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:36,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:36,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:36,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:36,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:36,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:36,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:36,386 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer 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 -> b03e1cb325e2c3a8ef30197a8e07012b3a728d97 [2019-10-22 08:58:36,411 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:36,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:36,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:36,427 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:36,427 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:36,428 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/large_const.i [2019-10-22 08:58:36,487 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/data/6308982af/3a2006e22e584343b8f72542467b941b/FLAG22e285179 [2019-10-22 08:58:36,859 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:36,860 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/sv-benchmarks/c/loop-invgen/large_const.i [2019-10-22 08:58:36,865 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/data/6308982af/3a2006e22e584343b8f72542467b941b/FLAG22e285179 [2019-10-22 08:58:36,877 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/data/6308982af/3a2006e22e584343b8f72542467b941b [2019-10-22 08:58:36,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:36,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:36,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:36,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:36,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:36,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:36" (1/1) ... [2019-10-22 08:58:36,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5abbafca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:36, skipping insertion in model container [2019-10-22 08:58:36,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:36" (1/1) ... [2019-10-22 08:58:36,900 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:36,915 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:37,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:37,059 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:37,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:37,148 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:37,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37 WrapperNode [2019-10-22 08:58:37,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:37,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:37,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:37,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:37,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:37,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:37,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:37,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:37,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:37,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:37,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:37,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:37,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/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 [2019-10-22 08:58:37,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:37,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:37,505 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:37,505 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 08:58:37,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:37 BoogieIcfgContainer [2019-10-22 08:58:37,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:37,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:37,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:37,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:37,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:36" (1/3) ... [2019-10-22 08:58:37,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730abe1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:37, skipping insertion in model container [2019-10-22 08:58:37,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (2/3) ... [2019-10-22 08:58:37,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730abe1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:37, skipping insertion in model container [2019-10-22 08:58:37,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:37" (3/3) ... [2019-10-22 08:58:37,528 INFO L109 eAbstractionObserver]: Analyzing ICFG large_const.i [2019-10-22 08:58:37,546 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:37,559 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:58:37,579 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:58:37,636 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:37,636 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:37,637 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:37,637 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:37,637 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:37,637 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:37,637 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:37,637 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:37,656 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-22 08:58:37,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:58:37,663 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:37,664 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:37,666 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:37,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:37,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1461315706, now seen corresponding path program 1 times [2019-10-22 08:58:37,682 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:37,682 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82680612] [2019-10-22 08:58:37,683 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:37,683 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:37,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:37,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:37,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82680612] [2019-10-22 08:58:37,816 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:37,816 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:58:37,817 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537293266] [2019-10-22 08:58:37,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:58:37,821 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:37,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:58:37,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:58:37,838 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2019-10-22 08:58:37,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:37,857 INFO L93 Difference]: Finished difference Result 26 states and 36 transitions. [2019-10-22 08:58:37,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:58:37,859 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-10-22 08:58:37,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:37,871 INFO L225 Difference]: With dead ends: 26 [2019-10-22 08:58:37,871 INFO L226 Difference]: Without dead ends: 12 [2019-10-22 08:58:37,875 INFO L600 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 [2019-10-22 08:58:37,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-22 08:58:37,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-22 08:58:37,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-22 08:58:37,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-10-22 08:58:37,915 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2019-10-22 08:58:37,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:37,916 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-10-22 08:58:37,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:58:37,916 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2019-10-22 08:58:37,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:58:37,917 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:37,917 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:37,917 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:37,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:37,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1479786126, now seen corresponding path program 1 times [2019-10-22 08:58:37,918 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:37,918 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174764990] [2019-10-22 08:58:37,918 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:37,919 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:37,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:38,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:38,029 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174764990] [2019-10-22 08:58:38,029 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:38,029 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:38,029 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632465720] [2019-10-22 08:58:38,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:38,031 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:38,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:38,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:38,032 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand 5 states. [2019-10-22 08:58:38,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:38,112 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-10-22 08:58:38,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:38,113 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-10-22 08:58:38,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:38,114 INFO L225 Difference]: With dead ends: 20 [2019-10-22 08:58:38,114 INFO L226 Difference]: Without dead ends: 13 [2019-10-22 08:58:38,115 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:38,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-22 08:58:38,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-22 08:58:38,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 08:58:38,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-10-22 08:58:38,119 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2019-10-22 08:58:38,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:38,119 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-10-22 08:58:38,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:38,120 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-10-22 08:58:38,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:58:38,120 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:38,120 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:38,121 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:38,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:38,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1660828652, now seen corresponding path program 1 times [2019-10-22 08:58:38,121 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:38,121 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184607913] [2019-10-22 08:58:38,122 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:38,122 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:38,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:38,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:38,197 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184607913] [2019-10-22 08:58:38,197 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916113858] [2019-10-22 08:58:38,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:38,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 08:58:38,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:38,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:38,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:38,299 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:38,299 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-10-22 08:58:38,300 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646466609] [2019-10-22 08:58:38,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:38,300 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:38,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:38,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:38,301 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 8 states. [2019-10-22 08:58:38,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:38,510 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2019-10-22 08:58:38,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:58:38,510 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-10-22 08:58:38,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:38,511 INFO L225 Difference]: With dead ends: 32 [2019-10-22 08:58:38,511 INFO L226 Difference]: Without dead ends: 30 [2019-10-22 08:58:38,512 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:58:38,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-22 08:58:38,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 19. [2019-10-22 08:58:38,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 08:58:38,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2019-10-22 08:58:38,518 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 10 [2019-10-22 08:58:38,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:38,518 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-10-22 08:58:38,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:38,518 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-10-22 08:58:38,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:58:38,519 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:38,519 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:38,719 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:38,720 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:38,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:38,720 INFO L82 PathProgramCache]: Analyzing trace with hash 2129936810, now seen corresponding path program 1 times [2019-10-22 08:58:38,720 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:38,720 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749895107] [2019-10-22 08:58:38,720 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:38,721 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:38,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:38,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:38,783 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749895107] [2019-10-22 08:58:38,783 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613649169] [2019-10-22 08:58:38,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:38,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 08:58:38,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:38,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:38,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:38,866 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:38,866 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-10-22 08:58:38,866 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549097655] [2019-10-22 08:58:38,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:38,867 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:38,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:38,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:38,867 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand 8 states. [2019-10-22 08:58:39,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:39,019 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2019-10-22 08:58:39,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:58:39,019 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-10-22 08:58:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:39,020 INFO L225 Difference]: With dead ends: 38 [2019-10-22 08:58:39,020 INFO L226 Difference]: Without dead ends: 36 [2019-10-22 08:58:39,021 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:58:39,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-22 08:58:39,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 25. [2019-10-22 08:58:39,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 08:58:39,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-10-22 08:58:39,027 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 11 [2019-10-22 08:58:39,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:39,027 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-10-22 08:58:39,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:39,027 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-10-22 08:58:39,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:58:39,028 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:39,028 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:39,228 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:39,229 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:39,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:39,229 INFO L82 PathProgramCache]: Analyzing trace with hash -2107772184, now seen corresponding path program 1 times [2019-10-22 08:58:39,229 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:39,229 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894038834] [2019-10-22 08:58:39,230 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:39,230 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:39,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:39,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:39,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894038834] [2019-10-22 08:58:39,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634518906] [2019-10-22 08:58:39,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:39,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 08:58:39,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:39,343 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:39,355 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:39,355 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-10-22 08:58:39,355 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447011082] [2019-10-22 08:58:39,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:39,356 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:39,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:39,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:39,356 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 8 states. [2019-10-22 08:58:39,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:39,495 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2019-10-22 08:58:39,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:58:39,496 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-10-22 08:58:39,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:39,497 INFO L225 Difference]: With dead ends: 42 [2019-10-22 08:58:39,497 INFO L226 Difference]: Without dead ends: 40 [2019-10-22 08:58:39,498 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:58:39,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-22 08:58:39,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 30. [2019-10-22 08:58:39,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-22 08:58:39,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 43 transitions. [2019-10-22 08:58:39,507 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 43 transitions. Word has length 11 [2019-10-22 08:58:39,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:39,507 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 43 transitions. [2019-10-22 08:58:39,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:39,507 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2019-10-22 08:58:39,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:58:39,507 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:39,508 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:39,708 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:39,708 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:39,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:39,709 INFO L82 PathProgramCache]: Analyzing trace with hash -272038047, now seen corresponding path program 1 times [2019-10-22 08:58:39,709 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:39,709 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669005497] [2019-10-22 08:58:39,709 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:39,709 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:39,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:39,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:58:39,795 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669005497] [2019-10-22 08:58:39,795 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937333241] [2019-10-22 08:58:39,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:39,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:39,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:39,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:39,877 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:58:39,878 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2019-10-22 08:58:39,878 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381056233] [2019-10-22 08:58:39,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:39,878 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:39,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:39,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:58:39,879 INFO L87 Difference]: Start difference. First operand 30 states and 43 transitions. Second operand 5 states. [2019-10-22 08:58:39,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:39,906 INFO L93 Difference]: Finished difference Result 36 states and 49 transitions. [2019-10-22 08:58:39,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:39,906 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-10-22 08:58:39,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:39,907 INFO L225 Difference]: With dead ends: 36 [2019-10-22 08:58:39,907 INFO L226 Difference]: Without dead ends: 26 [2019-10-22 08:58:39,908 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:58:39,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-22 08:58:39,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-22 08:58:39,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 08:58:39,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2019-10-22 08:58:39,914 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 13 [2019-10-22 08:58:39,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:39,914 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2019-10-22 08:58:39,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:39,914 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2019-10-22 08:58:39,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 08:58:39,915 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:39,915 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:40,116 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:40,116 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:40,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:40,117 INFO L82 PathProgramCache]: Analyzing trace with hash 55602980, now seen corresponding path program 1 times [2019-10-22 08:58:40,117 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:40,117 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231561783] [2019-10-22 08:58:40,117 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:40,117 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:40,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:40,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:40,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231561783] [2019-10-22 08:58:40,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132809509] [2019-10-22 08:58:40,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:40,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:58:40,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:40,337 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:40,337 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:58:40,337 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2019-10-22 08:58:40,338 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172493952] [2019-10-22 08:58:40,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:40,338 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:40,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:40,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:58:40,339 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. Second operand 5 states. [2019-10-22 08:58:40,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:40,347 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2019-10-22 08:58:40,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:40,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-22 08:58:40,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:40,348 INFO L225 Difference]: With dead ends: 29 [2019-10-22 08:58:40,348 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:58:40,348 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:58:40,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:58:40,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:58:40,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:58:40,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:58:40,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-10-22 08:58:40,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:40,349 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:40,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:40,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:40,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:58:40,550 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:40,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:58:40,814 INFO L443 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2019-10-22 08:58:40,814 INFO L439 ceAbstractionStarter]: At program point L32-2(lines 32 36) the Hoare annotation is: (let ((.cse1 (<= 2000 ULTIMATE.start_main_~c2~0)) (.cse3 (<= 4000 ULTIMATE.start_main_~c1~0)) (.cse2 (<= 10000 ULTIMATE.start_main_~c3~0)) (.cse0 (< ULTIMATE.start_main_~n~0 2))) (or (and (<= ULTIMATE.start_main_~i~0 0) (<= ULTIMATE.start_main_~n~0 0) (<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~j~0)) (and (<= 1 ULTIMATE.start_main_~j~0) .cse0 (and .cse1 .cse2 .cse3)) (and (and (and .cse1 (<= 2000 ULTIMATE.start_main_~k~0) .cse3) .cse2) .cse0 (<= 0 ULTIMATE.start_main_~j~0)))) [2019-10-22 08:58:40,815 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:58:40,815 INFO L443 ceAbstractionStarter]: For program point L32-3(lines 32 36) no Hoare annotation was computed. [2019-10-22 08:58:40,815 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:58:40,815 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2019-10-22 08:58:40,815 INFO L443 ceAbstractionStarter]: For program point L20-2(lines 20 30) no Hoare annotation was computed. [2019-10-22 08:58:40,815 INFO L446 ceAbstractionStarter]: At program point L37(lines 10 38) the Hoare annotation is: true [2019-10-22 08:58:40,815 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-22 08:58:40,816 INFO L439 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (and (<= 2000 ULTIMATE.start_main_~c2~0) (< ULTIMATE.start_main_~n~0 2) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 10000 ULTIMATE.start_main_~c3~0) (<= 0 ULTIMATE.start_main_~j~0) (<= 4000 ULTIMATE.start_main_~c1~0)) [2019-10-22 08:58:40,816 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:58:40,816 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-22 08:58:40,816 INFO L443 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-10-22 08:58:40,816 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-22 08:58:40,816 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 29) no Hoare annotation was computed. [2019-10-22 08:58:40,816 INFO L439 ceAbstractionStarter]: At program point L26-2(lines 20 30) the Hoare annotation is: (let ((.cse0 (<= 2000 ULTIMATE.start_main_~c2~0)) (.cse1 (<= 10000 ULTIMATE.start_main_~c3~0)) (.cse2 (<= 4000 ULTIMATE.start_main_~c1~0))) (or (and (<= 1 ULTIMATE.start_main_~i~0) .cse0 .cse1 (< ULTIMATE.start_main_~n~0 2) (<= 2000 ULTIMATE.start_main_~k~0) .cse2) (and (<= ULTIMATE.start_main_~i~0 0) (<= 0 ULTIMATE.start_main_~k~0) .cse0 .cse1 .cse2 (<= 0 ULTIMATE.start_main_~i~0)))) [2019-10-22 08:58:40,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:40 BoogieIcfgContainer [2019-10-22 08:58:40,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:40,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:40,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:40,836 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:40,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:37" (3/4) ... [2019-10-22 08:58:40,840 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:58:40,854 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 08:58:40,854 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:58:40,854 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 08:58:40,915 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_372c21b5-1f2e-4b00-b02b-f9a3bd8f2963/bin/uautomizer/witness.graphml [2019-10-22 08:58:40,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:40,922 INFO L168 Benchmark]: Toolchain (without parser) took 4040.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 942.0 MB in the beginning and 877.5 MB in the end (delta: 64.5 MB). Peak memory consumption was 200.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:40,923 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:40,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:40,925 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.02 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:40,925 INFO L168 Benchmark]: Boogie Preprocessor took 18.14 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:40,926 INFO L168 Benchmark]: RCFGBuilder took 305.22 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:40,926 INFO L168 Benchmark]: TraceAbstraction took 3326.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 881.5 MB in the end (delta: 230.9 MB). Peak memory consumption was 230.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:40,926 INFO L168 Benchmark]: Witness Printer took 85.32 ms. Allocated memory is still 1.2 GB. Free memory was 881.5 MB in the beginning and 877.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:40,933 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.02 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.14 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 305.22 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3326.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 881.5 MB in the end (delta: 230.9 MB). Peak memory consumption was 230.9 MB. Max. memory is 11.5 GB. * Witness Printer took 85.32 ms. Allocated memory is still 1.2 GB. Free memory was 881.5 MB in the beginning and 877.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((((2000 <= c2 && n < 2) && !(0 == cond)) && 10000 <= c3) && 0 <= j) && 4000 <= c1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((1 <= i && 2000 <= c2) && 10000 <= c3) && n < 2) && 2000 <= k) && 4000 <= c1) || (((((i <= 0 && 0 <= k) && 2000 <= c2) && 10000 <= c3) && 4000 <= c1) && 0 <= i) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((i <= 0 && n <= 0) && n <= j) || ((1 <= j && n < 2) && (2000 <= c2 && 10000 <= c3) && 4000 <= c1)) || (((((2000 <= c2 && 2000 <= k) && 4000 <= c1) && 10000 <= c3) && n < 2) && 0 <= j) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 107 SDtfs, 118 SDslu, 188 SDs, 0 SdLazy, 233 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 32 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 13 NumberOfFragments, 112 HoareAnnotationTreeSize, 4 FomulaSimplifications, 545 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 270 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 4831 SizeOfPredicates, 15 NumberOfNonLiveVariables, 285 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 9/22 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 correct! Received shutdown request...