./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/ludcmp.c --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/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/ludcmp.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/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 32bec6c4f79c2e7c076e1f90ef84b3b02cfe5535 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/ludcmp.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/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 32bec6c4f79c2e7c076e1f90ef84b3b02cfe5535 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:21:21,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:21:21,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:21:21,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:21:21,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:21:21,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:21:21,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:21:21,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:21:21,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:21:21,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:21:21,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:21:21,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:21:21,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:21:21,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:21:21,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:21:21,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:21:21,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:21:21,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:21:21,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:21:21,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:21:21,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:21:21,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:21:21,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:21:21,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:21:21,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:21:21,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:21:21,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:21:21,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:21:21,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:21:21,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:21:21,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:21:21,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:21:21,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:21:21,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:21:21,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:21:21,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:21:21,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:21:21,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:21:21,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:21:21,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:21:21,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:21:21,445 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:21:21,467 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:21:21,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:21:21,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:21:21,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:21:21,470 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:21:21,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:21:21,471 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:21:21,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:21:21,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:21:21,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:21:21,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:21:21,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:21:21,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:21:21,474 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:21:21,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:21:21,474 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:21:21,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:21:21,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:21:21,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:21:21,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:21:21,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:21:21,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:21:21,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:21:21,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:21:21,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:21:21,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:21:21,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:21:21,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:21:21,478 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/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/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 -> 32bec6c4f79c2e7c076e1f90ef84b3b02cfe5535 [2019-11-15 23:21:21,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:21:21,556 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:21:21,560 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:21:21,568 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:21:21,569 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:21:21,570 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/../../sv-benchmarks/c/loops/ludcmp.c [2019-11-15 23:21:21,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/data/2c6c4ef39/e6eaa39895a1488684901e14e67e30e8/FLAG165ac4dfe [2019-11-15 23:21:22,151 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:21:22,152 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/sv-benchmarks/c/loops/ludcmp.c [2019-11-15 23:21:22,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/data/2c6c4ef39/e6eaa39895a1488684901e14e67e30e8/FLAG165ac4dfe [2019-11-15 23:21:22,464 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/data/2c6c4ef39/e6eaa39895a1488684901e14e67e30e8 [2019-11-15 23:21:22,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:21:22,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:21:22,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:21:22,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:21:22,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:21:22,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:21:22" (1/1) ... [2019-11-15 23:21:22,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d9908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22, skipping insertion in model container [2019-11-15 23:21:22,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:21:22" (1/1) ... [2019-11-15 23:21:22,489 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:21:22,520 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:21:22,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:21:22,822 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:21:22,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:21:22,896 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:21:22,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22 WrapperNode [2019-11-15 23:21:22,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:21:22,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:21:22,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:21:22,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:21:22,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22" (1/1) ... [2019-11-15 23:21:22,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22" (1/1) ... [2019-11-15 23:21:22,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:21:22,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:21:22,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:21:22,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:21:23,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22" (1/1) ... [2019-11-15 23:21:23,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22" (1/1) ... [2019-11-15 23:21:23,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22" (1/1) ... [2019-11-15 23:21:23,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22" (1/1) ... [2019-11-15 23:21:23,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22" (1/1) ... [2019-11-15 23:21:23,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22" (1/1) ... [2019-11-15 23:21:23,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22" (1/1) ... [2019-11-15 23:21:23,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:21:23,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:21:23,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:21:23,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:21:23,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/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 [2019-11-15 23:21:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 23:21:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 23:21:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:21:23,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:21:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:21:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:21:23,856 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:21:23,857 INFO L284 CfgBuilder]: Removed 21 assume(true) statements. [2019-11-15 23:21:23,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:21:23 BoogieIcfgContainer [2019-11-15 23:21:23,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:21:23,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:21:23,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:21:23,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:21:23,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:21:22" (1/3) ... [2019-11-15 23:21:23,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e464829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:21:23, skipping insertion in model container [2019-11-15 23:21:23,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:22" (2/3) ... [2019-11-15 23:21:23,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e464829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:21:23, skipping insertion in model container [2019-11-15 23:21:23,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:21:23" (3/3) ... [2019-11-15 23:21:23,868 INFO L109 eAbstractionObserver]: Analyzing ICFG ludcmp.c [2019-11-15 23:21:23,878 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:21:23,887 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:21:23,901 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:21:23,929 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:21:23,930 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:21:23,930 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:21:23,930 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:21:23,930 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:21:23,931 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:21:23,931 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:21:23,931 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:21:23,950 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-11-15 23:21:23,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 23:21:23,958 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:21:23,959 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:21:23,962 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:21:23,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:21:23,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1809811384, now seen corresponding path program 1 times [2019-11-15 23:21:23,975 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:21:23,976 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068704320] [2019-11-15 23:21:23,976 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:23,976 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:23,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:21:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:21:24,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:24,179 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068704320] [2019-11-15 23:21:24,180 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:21:24,181 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:21:24,181 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893527519] [2019-11-15 23:21:24,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:21:24,186 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:21:24,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:21:24,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:21:24,200 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 4 states. [2019-11-15 23:21:24,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:21:24,313 INFO L93 Difference]: Finished difference Result 102 states and 159 transitions. [2019-11-15 23:21:24,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:21:24,315 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-15 23:21:24,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:21:24,328 INFO L225 Difference]: With dead ends: 102 [2019-11-15 23:21:24,328 INFO L226 Difference]: Without dead ends: 17 [2019-11-15 23:21:24,332 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:21:24,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-15 23:21:24,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2019-11-15 23:21:24,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-15 23:21:24,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-15 23:21:24,395 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 7 [2019-11-15 23:21:24,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:21:24,396 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-15 23:21:24,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:21:24,396 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-15 23:21:24,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:21:24,396 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:21:24,397 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:21:24,397 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:21:24,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:21:24,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1948892579, now seen corresponding path program 1 times [2019-11-15 23:21:24,397 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:21:24,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192894901] [2019-11-15 23:21:24,398 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:24,398 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:24,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:21:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:21:24,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:24,525 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192894901] [2019-11-15 23:21:24,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973216766] [2019-11-15 23:21:24,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/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 [2019-11-15 23:21:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:21:24,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:21:24,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:21:24,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:24,742 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:21:24,742 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-11-15 23:21:24,742 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973561776] [2019-11-15 23:21:24,744 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:21:24,744 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:21:24,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:21:24,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:21:24,745 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 8 states. [2019-11-15 23:21:24,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:21:24,931 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2019-11-15 23:21:24,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 23:21:24,931 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-15 23:21:24,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:21:24,934 INFO L225 Difference]: With dead ends: 52 [2019-11-15 23:21:24,935 INFO L226 Difference]: Without dead ends: 40 [2019-11-15 23:21:24,936 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:21:24,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-15 23:21:24,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 28. [2019-11-15 23:21:24,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-15 23:21:24,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2019-11-15 23:21:24,955 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 11 [2019-11-15 23:21:24,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:21:24,957 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2019-11-15 23:21:24,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:21:24,958 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2019-11-15 23:21:24,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 23:21:24,959 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:21:24,960 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:21:25,164 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:21:25,165 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:21:25,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:21:25,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1891735812, now seen corresponding path program 1 times [2019-11-15 23:21:25,166 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:21:25,166 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782060951] [2019-11-15 23:21:25,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:25,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:25,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:21:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:21:25,320 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:25,321 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782060951] [2019-11-15 23:21:25,321 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708305661] [2019-11-15 23:21:25,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/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 [2019-11-15 23:21:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:21:25,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 23:21:25,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:21:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:25,479 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:21:25,479 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-15 23:21:25,479 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852512037] [2019-11-15 23:21:25,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 23:21:25,480 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:21:25,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 23:21:25,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:21:25,481 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 10 states. [2019-11-15 23:21:25,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:21:25,720 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2019-11-15 23:21:25,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 23:21:25,721 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2019-11-15 23:21:25,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:21:25,723 INFO L225 Difference]: With dead ends: 64 [2019-11-15 23:21:25,723 INFO L226 Difference]: Without dead ends: 48 [2019-11-15 23:21:25,724 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-11-15 23:21:25,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-15 23:21:25,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 36. [2019-11-15 23:21:25,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-15 23:21:25,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2019-11-15 23:21:25,732 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 15 [2019-11-15 23:21:25,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:21:25,733 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2019-11-15 23:21:25,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 23:21:25,733 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2019-11-15 23:21:25,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 23:21:25,734 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:21:25,734 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:21:25,939 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:21:25,939 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:21:25,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:21:25,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1388100565, now seen corresponding path program 2 times [2019-11-15 23:21:25,940 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:21:25,940 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557948556] [2019-11-15 23:21:25,940 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:25,940 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:25,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:21:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:21:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:26,084 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557948556] [2019-11-15 23:21:26,084 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656116354] [2019-11-15 23:21:26,084 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/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 [2019-11-15 23:21:26,165 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 23:21:26,166 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 23:21:26,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 23:21:26,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:21:26,295 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:26,296 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:21:26,296 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-15 23:21:26,296 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599363264] [2019-11-15 23:21:26,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 23:21:26,297 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:21:26,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 23:21:26,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:21:26,299 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 12 states. [2019-11-15 23:21:26,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:21:26,608 INFO L93 Difference]: Finished difference Result 76 states and 94 transitions. [2019-11-15 23:21:26,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 23:21:26,609 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2019-11-15 23:21:26,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:21:26,610 INFO L225 Difference]: With dead ends: 76 [2019-11-15 23:21:26,610 INFO L226 Difference]: Without dead ends: 56 [2019-11-15 23:21:26,611 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2019-11-15 23:21:26,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-15 23:21:26,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 44. [2019-11-15 23:21:26,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-15 23:21:26,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2019-11-15 23:21:26,632 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 19 [2019-11-15 23:21:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:21:26,633 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2019-11-15 23:21:26,633 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 23:21:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2019-11-15 23:21:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-15 23:21:26,634 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:21:26,635 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:21:26,845 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:21:26,845 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:21:26,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:21:26,846 INFO L82 PathProgramCache]: Analyzing trace with hash 756876242, now seen corresponding path program 3 times [2019-11-15 23:21:26,846 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:21:26,846 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828883284] [2019-11-15 23:21:26,846 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:26,847 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:26,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:21:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:21:27,327 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:27,328 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828883284] [2019-11-15 23:21:27,328 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29693197] [2019-11-15 23:21:27,329 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/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 [2019-11-15 23:21:27,409 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-15 23:21:27,409 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 23:21:27,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 23:21:27,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:21:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:27,545 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:21:27,545 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2019-11-15 23:21:27,545 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080362666] [2019-11-15 23:21:27,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-15 23:21:27,546 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:21:27,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-15 23:21:27,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2019-11-15 23:21:27,547 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand 17 states. [2019-11-15 23:21:31,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:21:31,187 INFO L93 Difference]: Finished difference Result 249 states and 311 transitions. [2019-11-15 23:21:31,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2019-11-15 23:21:31,188 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 23 [2019-11-15 23:21:31,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:21:31,190 INFO L225 Difference]: With dead ends: 249 [2019-11-15 23:21:31,191 INFO L226 Difference]: Without dead ends: 225 [2019-11-15 23:21:31,194 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1812 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1280, Invalid=4572, Unknown=0, NotChecked=0, Total=5852 [2019-11-15 23:21:31,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2019-11-15 23:21:31,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 126. [2019-11-15 23:21:31,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-15 23:21:31,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 160 transitions. [2019-11-15 23:21:31,234 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 160 transitions. Word has length 23 [2019-11-15 23:21:31,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:21:31,234 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 160 transitions. [2019-11-15 23:21:31,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-15 23:21:31,235 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 160 transitions. [2019-11-15 23:21:31,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 23:21:31,236 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:21:31,236 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:21:31,440 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:21:31,441 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:21:31,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:21:31,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1523542023, now seen corresponding path program 4 times [2019-11-15 23:21:31,441 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:21:31,442 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899895849] [2019-11-15 23:21:31,442 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:31,442 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:31,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:21:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:21:31,595 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:31,595 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899895849] [2019-11-15 23:21:31,595 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265267947] [2019-11-15 23:21:31,595 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/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 [2019-11-15 23:21:31,657 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 23:21:31,658 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 23:21:31,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 23:21:31,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:21:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:31,775 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:21:31,775 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-11-15 23:21:31,775 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783566414] [2019-11-15 23:21:31,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-15 23:21:31,776 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:21:31,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-15 23:21:31,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2019-11-15 23:21:31,776 INFO L87 Difference]: Start difference. First operand 126 states and 160 transitions. Second operand 16 states. [2019-11-15 23:21:32,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:21:32,065 INFO L93 Difference]: Finished difference Result 279 states and 356 transitions. [2019-11-15 23:21:32,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-15 23:21:32,067 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2019-11-15 23:21:32,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:21:32,069 INFO L225 Difference]: With dead ends: 279 [2019-11-15 23:21:32,070 INFO L226 Difference]: Without dead ends: 192 [2019-11-15 23:21:32,071 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2019-11-15 23:21:32,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2019-11-15 23:21:32,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 138. [2019-11-15 23:21:32,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-11-15 23:21:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 174 transitions. [2019-11-15 23:21:32,090 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 174 transitions. Word has length 27 [2019-11-15 23:21:32,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:21:32,090 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 174 transitions. [2019-11-15 23:21:32,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-15 23:21:32,091 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 174 transitions. [2019-11-15 23:21:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 23:21:32,092 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:21:32,092 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:21:32,295 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:21:32,295 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:21:32,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:21:32,296 INFO L82 PathProgramCache]: Analyzing trace with hash 58704032, now seen corresponding path program 5 times [2019-11-15 23:21:32,296 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:21:32,296 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681436117] [2019-11-15 23:21:32,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:32,297 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:21:32,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:21:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:21:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:21:32,388 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:21:32,388 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:21:32,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:21:32 BoogieIcfgContainer [2019-11-15 23:21:32,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:21:32,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:21:32,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:21:32,447 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:21:32,447 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:21:23" (3/4) ... [2019-11-15 23:21:32,452 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:21:32,452 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:21:32,455 INFO L168 Benchmark]: Toolchain (without parser) took 9984.61 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 288.9 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -162.1 MB). Peak memory consumption was 126.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:21:32,455 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:21:32,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -221.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:21:32,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:21:32,457 INFO L168 Benchmark]: Boogie Preprocessor took 104.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:21:32,458 INFO L168 Benchmark]: RCFGBuilder took 765.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:21:32,459 INFO L168 Benchmark]: TraceAbstraction took 8586.22 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 110.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 128.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:21:32,460 INFO L168 Benchmark]: Witness Printer took 6.12 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:21:32,463 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 427.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -221.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 104.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 765.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8586.22 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 110.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 128.2 MB. Max. memory is 11.5 GB. * Witness Printer took 6.12 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_real at line 96, overapproximation of someBinaryArithmeticDOUBLEoperation at line 98. Possible FailurePath: [L69] double a[50][50], b[50], x[50]; VAL [a={-1:0}, b={-2:0}, x={1:0}] [L86] int i, j, nmax = 50, n = 5, chkerr; [L87] double eps, w; [L89] eps = 1.0e-6 [L91] i = 0 VAL [a={-1:0}, b={-2:0}, x={1:0}] [L91] COND TRUE i <= n [L93] w = 0.0 [L94] j = 0 VAL [a={-1:0}, b={-2:0}, x={1:0}] [L94] COND TRUE j <= n [L96] a[i][j] = (i + 1) + (j + 1) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L97] COND TRUE i == j [L97] EXPR a[i][j] [L97] a[i][j] *= 10.0 [L98] EXPR a[i][j] [L98] w += a[i][j] [L94] j++ VAL [a={-1:0}, b={-2:0}, x={1:0}] [L94] COND TRUE j <= n [L96] a[i][j] = (i + 1) + (j + 1) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L97] COND FALSE !(i == j) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L98] EXPR a[i][j] [L98] w += a[i][j] [L94] j++ VAL [a={-1:0}, b={-2:0}, x={1:0}] [L94] COND TRUE j <= n [L96] a[i][j] = (i + 1) + (j + 1) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L97] COND FALSE !(i == j) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L98] EXPR a[i][j] [L98] w += a[i][j] [L94] j++ VAL [a={-1:0}, b={-2:0}, x={1:0}] [L94] COND TRUE j <= n [L96] a[i][j] = (i + 1) + (j + 1) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L97] COND FALSE !(i == j) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L98] EXPR a[i][j] [L98] w += a[i][j] [L94] j++ VAL [a={-1:0}, b={-2:0}, x={1:0}] [L94] COND TRUE j <= n [L96] a[i][j] = (i + 1) + (j + 1) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L97] COND FALSE !(i == j) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L98] EXPR a[i][j] [L98] w += a[i][j] [L94] j++ VAL [a={-1:0}, b={-2:0}, x={1:0}] [L94] COND TRUE j <= n [L96] a[i][j] = (i + 1) + (j + 1) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L97] COND FALSE !(i == j) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L98] EXPR a[i][j] [L98] w += a[i][j] [L94] j++ VAL [a={-1:0}, b={-2:0}, x={1:0}] [L94] COND FALSE !(j <= n) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L4] COND TRUE !(cond) VAL [a={-1:0}, b={-2:0}, x={1:0}] [L5] __VERIFIER_error() VAL [a={-1:0}, b={-2:0}, x={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Result: UNSAFE, OverallTime: 8.5s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 899 SDslu, 318 SDs, 0 SdLazy, 639 SolverSat, 288 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 77 SyntacticMatches, 4 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1919 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=6, 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, 6 MinimizatonAttempts, 192 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 28854 SizeOfPredicates, 10 NumberOfNonLiveVariables, 340 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 0/190 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 23:21:35,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:21:35,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:21:35,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:21:35,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:21:35,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:21:35,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:21:35,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:21:35,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:21:35,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:21:35,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:21:35,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:21:35,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:21:35,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:21:35,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:21:35,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:21:35,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:21:35,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:21:35,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:21:35,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:21:35,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:21:35,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:21:35,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:21:35,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:21:35,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:21:35,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:21:35,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:21:35,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:21:35,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:21:35,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:21:35,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:21:35,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:21:35,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:21:35,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:21:35,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:21:35,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:21:35,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:21:35,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:21:35,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:21:35,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:21:35,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:21:35,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:21:35,146 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:21:35,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:21:35,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:21:35,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:21:35,149 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:21:35,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:21:35,149 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:21:35,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:21:35,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:21:35,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:21:35,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:21:35,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:21:35,151 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:21:35,151 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:21:35,151 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:21:35,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:21:35,151 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:21:35,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:21:35,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:21:35,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:21:35,152 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:21:35,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:21:35,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:21:35,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:21:35,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:21:35,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:21:35,154 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:21:35,154 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:21:35,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:21:35,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:21:35,155 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/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 -> 32bec6c4f79c2e7c076e1f90ef84b3b02cfe5535 [2019-11-15 23:21:35,200 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:21:35,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:21:35,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:21:35,222 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:21:35,222 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:21:35,226 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/../../sv-benchmarks/c/loops/ludcmp.c [2019-11-15 23:21:35,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/data/e2fbef654/416cb178c686475cb51005c52ac467cc/FLAGdd81619c0 [2019-11-15 23:21:35,713 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:21:35,714 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/sv-benchmarks/c/loops/ludcmp.c [2019-11-15 23:21:35,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/data/e2fbef654/416cb178c686475cb51005c52ac467cc/FLAGdd81619c0 [2019-11-15 23:21:36,072 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/data/e2fbef654/416cb178c686475cb51005c52ac467cc [2019-11-15 23:21:36,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:21:36,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:21:36,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:21:36,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:21:36,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:21:36,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:21:36" (1/1) ... [2019-11-15 23:21:36,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f797cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36, skipping insertion in model container [2019-11-15 23:21:36,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:21:36" (1/1) ... [2019-11-15 23:21:36,096 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:21:36,140 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:21:36,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:21:36,492 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:21:36,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:21:36,657 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:21:36,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36 WrapperNode [2019-11-15 23:21:36,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:21:36,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:21:36,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:21:36,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:21:36,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36" (1/1) ... [2019-11-15 23:21:36,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36" (1/1) ... [2019-11-15 23:21:36,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:21:36,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:21:36,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:21:36,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:21:36,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36" (1/1) ... [2019-11-15 23:21:36,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36" (1/1) ... [2019-11-15 23:21:36,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36" (1/1) ... [2019-11-15 23:21:36,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36" (1/1) ... [2019-11-15 23:21:36,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36" (1/1) ... [2019-11-15 23:21:36,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36" (1/1) ... [2019-11-15 23:21:36,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36" (1/1) ... [2019-11-15 23:21:36,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:21:36,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:21:36,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:21:36,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:21:36,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/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 [2019-11-15 23:21:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 23:21:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 23:21:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:21:36,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:21:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:21:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:21:50,139 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:21:50,140 INFO L284 CfgBuilder]: Removed 21 assume(true) statements. [2019-11-15 23:21:50,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:21:50 BoogieIcfgContainer [2019-11-15 23:21:50,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:21:50,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:21:50,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:21:50,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:21:50,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:21:36" (1/3) ... [2019-11-15 23:21:50,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f2a949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:21:50, skipping insertion in model container [2019-11-15 23:21:50,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:21:36" (2/3) ... [2019-11-15 23:21:50,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f2a949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:21:50, skipping insertion in model container [2019-11-15 23:21:50,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:21:50" (3/3) ... [2019-11-15 23:21:50,150 INFO L109 eAbstractionObserver]: Analyzing ICFG ludcmp.c [2019-11-15 23:21:50,162 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:21:50,172 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:21:50,185 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:21:50,212 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:21:50,212 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:21:50,213 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:21:50,213 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:21:50,213 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:21:50,214 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:21:50,214 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:21:50,214 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:21:50,231 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-11-15 23:21:50,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 23:21:50,238 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:21:50,240 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:21:50,242 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:21:50,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:21:50,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1809811384, now seen corresponding path program 1 times [2019-11-15 23:21:50,260 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:21:50,261 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024784146] [2019-11-15 23:21:50,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 23:21:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:21:50,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 23:21:50,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:21:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:50,425 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:21:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:50,461 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024784146] [2019-11-15 23:21:50,462 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:21:50,462 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 23:21:50,463 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63965507] [2019-11-15 23:21:50,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:21:50,468 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:21:50,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:21:50,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:21:50,489 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 6 states. [2019-11-15 23:21:51,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:21:51,545 INFO L93 Difference]: Finished difference Result 103 states and 162 transitions. [2019-11-15 23:21:51,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:21:51,557 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2019-11-15 23:21:51,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:21:51,567 INFO L225 Difference]: With dead ends: 103 [2019-11-15 23:21:51,567 INFO L226 Difference]: Without dead ends: 18 [2019-11-15 23:21:51,572 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:21:51,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-15 23:21:51,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-15 23:21:51,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-15 23:21:51,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-15 23:21:51,615 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 7 [2019-11-15 23:21:51,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:21:51,616 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-15 23:21:51,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:21:51,617 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-15 23:21:51,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 23:21:51,618 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:21:51,618 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:21:51,829 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:21:51,830 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:21:51,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:21:51,830 INFO L82 PathProgramCache]: Analyzing trace with hash 116728450, now seen corresponding path program 1 times [2019-11-15 23:21:51,831 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:21:51,832 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465774989] [2019-11-15 23:21:51,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 23:21:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:21:52,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:21:52,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:21:52,438 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:52,443 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:21:52,520 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:52,521 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465774989] [2019-11-15 23:21:52,521 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:21:52,521 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-11-15 23:21:52,522 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531621096] [2019-11-15 23:21:52,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:21:52,524 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:21:52,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:21:52,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:21:52,525 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 8 states. [2019-11-15 23:21:55,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:21:55,201 INFO L93 Difference]: Finished difference Result 94 states and 111 transitions. [2019-11-15 23:21:55,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 23:21:55,202 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-15 23:21:55,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:21:55,206 INFO L225 Difference]: With dead ends: 94 [2019-11-15 23:21:55,206 INFO L226 Difference]: Without dead ends: 78 [2019-11-15 23:21:55,207 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:21:55,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-15 23:21:55,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 47. [2019-11-15 23:21:55,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-11-15 23:21:55,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2019-11-15 23:21:55,223 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 15 [2019-11-15 23:21:55,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:21:55,224 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2019-11-15 23:21:55,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:21:55,225 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2019-11-15 23:21:55,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 23:21:55,226 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:21:55,226 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:21:55,429 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 23:21:55,429 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:21:55,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:21:55,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1891735812, now seen corresponding path program 1 times [2019-11-15 23:21:55,431 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:21:55,431 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502048845] [2019-11-15 23:21:55,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 23:21:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:21:55,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 23:21:55,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:21:55,947 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:55,948 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:21:56,113 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:21:56,113 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502048845] [2019-11-15 23:21:56,114 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:21:56,114 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-15 23:21:56,114 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239542034] [2019-11-15 23:21:56,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 23:21:56,115 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:21:56,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 23:21:56,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:21:56,116 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand 10 states. [2019-11-15 23:21:58,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:21:58,573 INFO L93 Difference]: Finished difference Result 121 states and 152 transitions. [2019-11-15 23:21:58,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 23:21:58,584 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2019-11-15 23:21:58,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:21:58,586 INFO L225 Difference]: With dead ends: 121 [2019-11-15 23:21:58,587 INFO L226 Difference]: Without dead ends: 98 [2019-11-15 23:21:58,587 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2019-11-15 23:21:58,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-15 23:21:58,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2019-11-15 23:21:58,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-15 23:21:58,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 112 transitions. [2019-11-15 23:21:58,606 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 112 transitions. Word has length 15 [2019-11-15 23:21:58,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:21:58,607 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 112 transitions. [2019-11-15 23:21:58,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 23:21:58,607 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 112 transitions. [2019-11-15 23:21:58,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 23:21:58,609 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:21:58,609 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:21:58,810 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 23:21:58,811 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:21:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:21:58,811 INFO L82 PathProgramCache]: Analyzing trace with hash -642360546, now seen corresponding path program 2 times [2019-11-15 23:21:58,812 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:21:58,812 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790686046] [2019-11-15 23:21:58,812 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-15 23:21:59,836 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 23:21:59,837 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 23:21:59,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 23:21:59,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:22:00,060 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 31 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-15 23:22:00,061 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:22:00,227 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 31 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-15 23:22:00,227 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790686046] [2019-11-15 23:22:00,228 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:22:00,228 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2019-11-15 23:22:00,228 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135677085] [2019-11-15 23:22:00,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-15 23:22:00,230 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:22:00,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-15 23:22:00,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2019-11-15 23:22:00,231 INFO L87 Difference]: Start difference. First operand 98 states and 112 transitions. Second operand 14 states. [2019-11-15 23:22:07,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:22:07,107 INFO L93 Difference]: Finished difference Result 448 states and 518 transitions. [2019-11-15 23:22:07,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-11-15 23:22:07,109 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 31 [2019-11-15 23:22:07,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:22:07,112 INFO L225 Difference]: With dead ends: 448 [2019-11-15 23:22:07,112 INFO L226 Difference]: Without dead ends: 374 [2019-11-15 23:22:07,114 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=460, Invalid=1100, Unknown=0, NotChecked=0, Total=1560 [2019-11-15 23:22:07,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2019-11-15 23:22:07,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 183. [2019-11-15 23:22:07,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-11-15 23:22:07,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 210 transitions. [2019-11-15 23:22:07,160 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 210 transitions. Word has length 31 [2019-11-15 23:22:07,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:22:07,161 INFO L462 AbstractCegarLoop]: Abstraction has 183 states and 210 transitions. [2019-11-15 23:22:07,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-15 23:22:07,161 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 210 transitions. [2019-11-15 23:22:07,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 23:22:07,162 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:22:07,162 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:22:07,369 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 23:22:07,369 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:22:07,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:22:07,370 INFO L82 PathProgramCache]: Analyzing trace with hash 58704032, now seen corresponding path program 3 times [2019-11-15 23:22:07,370 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:22:07,370 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723095086] [2019-11-15 23:22:07,370 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb88c016-ad8d-4522-aac0-d6f616420cbc/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-15 23:22:07,520 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-11-15 23:22:07,520 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 23:22:07,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 23:22:07,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:22:07,582 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2019-11-15 23:22:07,583 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-11-15 23:22:07,638 INFO L567 ElimStorePlain]: treesize reduction 14, result has 58.8 percent of original size [2019-11-15 23:22:07,681 INFO L341 Elim1Store]: treesize reduction 30, result has 30.2 percent of original size [2019-11-15 23:22:07,682 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 19 [2019-11-15 23:22:07,682 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 23:22:07,695 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 23:22:07,696 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-15 23:22:07,697 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:23 [2019-11-15 23:22:11,762 WARN L191 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 18 DAG size of output: 14 [2019-11-15 23:22:13,781 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-15 23:22:15,834 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 18 [2019-11-15 23:22:15,845 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-11-15 23:22:15,845 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:22:17,875 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#a~0.offset| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_19| (_ BitVec 64))) (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven (bvadd c_ULTIMATE.start_main_~i~0 c_ULTIMATE.start_main_~j~0 (_ bv2 32))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_19|)))) (not (let ((.cse0 (select |c_#memory_int| |c_~#a~0.base|)) (.cse1 (bvmul c_ULTIMATE.start_main_~i~0 (_ bv400 32))) (.cse2 (bvmul c_ULTIMATE.start_main_~j~0 (_ bv8 32)))) (= (store |c_#memory_int| |c_~#a~0.base| (store .cse0 (bvadd |~#a~0.offset| .cse1 .cse2) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_19|))) (store |c_#memory_int| |c_~#a~0.base| (store .cse0 (bvadd |~#a~0.offset| .cse1 .cse2 (_ bv4 32)) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_19|)))))))) is different from false [2019-11-15 23:22:20,048 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#a~0.offset| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_19| (_ BitVec 64))) (or (not (let ((.cse0 (select |c_#memory_int| |c_~#a~0.base|)) (.cse1 (bvmul c_ULTIMATE.start_main_~i~0 (_ bv400 32)))) (= (store |c_#memory_int| |c_~#a~0.base| (store .cse0 (bvadd |~#a~0.offset| .cse1) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_19|))) (store |c_#memory_int| |c_~#a~0.base| (store .cse0 (bvadd |~#a~0.offset| .cse1 (_ bv4 32)) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_19|)))))) (not (= ((_ to_fp 11 53) roundNearestTiesToEven (bvadd c_ULTIMATE.start_main_~i~0 (_ bv2 32))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_19|)))))) is different from false [2019-11-15 23:22:22,200 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#a~0.offset| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_19| (_ BitVec 64))) (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_19|)))) (not (let ((.cse0 (select |c_#memory_int| |c_~#a~0.base|))) (= (store |c_#memory_int| |c_~#a~0.base| (store .cse0 (bvadd |~#a~0.offset| (_ bv4 32)) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_19|))) (store |c_#memory_int| |c_~#a~0.base| (store .cse0 |~#a~0.offset| ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_19|)))))))) is different from false [2019-11-15 23:22:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-11-15 23:22:22,205 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723095086] [2019-11-15 23:22:22,205 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:22:22,205 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-11-15 23:22:22,205 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177757051] [2019-11-15 23:22:22,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:22:22,206 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:22:22,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:22:22,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=13, Unknown=3, NotChecked=24, Total=56 [2019-11-15 23:22:22,207 INFO L87 Difference]: Start difference. First operand 183 states and 210 transitions. Second operand 8 states. [2019-11-15 23:22:32,290 WARN L191 SmtUtils]: Spent 10.05 s on a formula simplification. DAG size of input: 37 DAG size of output: 14 [2019-11-15 23:22:33,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:22:33,176 INFO L93 Difference]: Finished difference Result 183 states and 210 transitions. [2019-11-15 23:22:33,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:22:33,176 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2019-11-15 23:22:33,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:22:33,177 INFO L225 Difference]: With dead ends: 183 [2019-11-15 23:22:33,177 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:22:33,178 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=22, Invalid=17, Unknown=3, NotChecked=30, Total=72 [2019-11-15 23:22:33,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:22:33,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:22:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:22:33,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:22:33,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-11-15 23:22:33,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:22:33,180 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:22:33,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:22:33,180 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:22:33,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:22:33,380 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-15 23:22:33,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 23:22:35,505 WARN L191 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 21 [2019-11-15 23:22:37,545 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 19 [2019-11-15 23:22:37,548 INFO L439 ceAbstractionStarter]: At program point L151(lines 109 153) the Hoare annotation is: (= (_ bv5 32) ULTIMATE.start_main_~n~0) [2019-11-15 23:22:37,549 INFO L443 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2019-11-15 23:22:37,549 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 23:22:37,549 INFO L443 ceAbstractionStarter]: For program point L127-2(lines 127 133) no Hoare annotation was computed. [2019-11-15 23:22:37,549 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 23:22:37,549 INFO L443 ceAbstractionStarter]: For program point L94-2(lines 94 99) no Hoare annotation was computed. [2019-11-15 23:22:37,549 INFO L439 ceAbstractionStarter]: At program point L127-3(lines 127 133) the Hoare annotation is: (= (_ bv5 32) ULTIMATE.start_main_~n~0) [2019-11-15 23:22:37,550 INFO L439 ceAbstractionStarter]: At program point L94-3(lines 94 99) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv0 32) ULTIMATE.start_main_~i~0) (= (_ bv5 32) ULTIMATE.start_main_~n~0) (exists ((|~#b~0.base| (_ BitVec 32))) (and (= (select |#memory_int| |~#b~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))) (not (= |~#a~0.base| |~#b~0.base|)))) (= (select |#memory_int| |~#a~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) [2019-11-15 23:22:37,550 INFO L443 ceAbstractionStarter]: For program point L94-4(lines 94 99) no Hoare annotation was computed. [2019-11-15 23:22:37,550 INFO L443 ceAbstractionStarter]: For program point L119-2(lines 119 126) no Hoare annotation was computed. [2019-11-15 23:22:37,550 INFO L439 ceAbstractionStarter]: At program point L119-3(lines 119 126) the Hoare annotation is: (= (_ bv5 32) ULTIMATE.start_main_~n~0) [2019-11-15 23:22:37,550 INFO L443 ceAbstractionStarter]: For program point L119-4(lines 119 126) no Hoare annotation was computed. [2019-11-15 23:22:37,550 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 23:22:37,550 INFO L443 ceAbstractionStarter]: For program point L78(lines 78 79) no Hoare annotation was computed. [2019-11-15 23:22:37,551 INFO L443 ceAbstractionStarter]: For program point L144-2(lines 144 150) no Hoare annotation was computed. [2019-11-15 23:22:37,551 INFO L439 ceAbstractionStarter]: At program point L144-3(lines 144 150) the Hoare annotation is: (= (_ bv5 32) ULTIMATE.start_main_~n~0) [2019-11-15 23:22:37,551 INFO L443 ceAbstractionStarter]: For program point L78-2(lines 78 79) no Hoare annotation was computed. [2019-11-15 23:22:37,551 INFO L443 ceAbstractionStarter]: For program point L144-4(lines 144 150) no Hoare annotation was computed. [2019-11-15 23:22:37,551 INFO L443 ceAbstractionStarter]: For program point L136-2(lines 136 142) no Hoare annotation was computed. [2019-11-15 23:22:37,551 INFO L439 ceAbstractionStarter]: At program point L136-3(lines 136 142) the Hoare annotation is: (= (_ bv5 32) ULTIMATE.start_main_~n~0) [2019-11-15 23:22:37,551 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-15 23:22:37,551 INFO L443 ceAbstractionStarter]: For program point L136-4(lines 136 142) no Hoare annotation was computed. [2019-11-15 23:22:37,552 INFO L439 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: false [2019-11-15 23:22:37,552 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-15 23:22:37,552 INFO L439 ceAbstractionStarter]: At program point L80(lines 74 81) the Hoare annotation is: (= (_ bv5 32) ULTIMATE.start_main_~n~0) [2019-11-15 23:22:37,552 INFO L443 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2019-11-15 23:22:37,552 INFO L443 ceAbstractionStarter]: For program point L130-2(lines 130 131) no Hoare annotation was computed. [2019-11-15 23:22:37,552 INFO L443 ceAbstractionStarter]: For program point L97-2(line 97) no Hoare annotation was computed. [2019-11-15 23:22:37,552 INFO L439 ceAbstractionStarter]: At program point L130-3(lines 130 131) the Hoare annotation is: (= (_ bv5 32) ULTIMATE.start_main_~n~0) [2019-11-15 23:22:37,552 INFO L443 ceAbstractionStarter]: For program point L130-4(lines 130 131) no Hoare annotation was computed. [2019-11-15 23:22:37,553 INFO L443 ceAbstractionStarter]: For program point L122(lines 122 124) no Hoare annotation was computed. [2019-11-15 23:22:37,553 INFO L443 ceAbstractionStarter]: For program point L122-1(lines 122 124) no Hoare annotation was computed. [2019-11-15 23:22:37,553 INFO L443 ceAbstractionStarter]: For program point L147-2(lines 147 148) no Hoare annotation was computed. [2019-11-15 23:22:37,553 INFO L439 ceAbstractionStarter]: At program point L147-3(lines 147 148) the Hoare annotation is: (= (_ bv5 32) ULTIMATE.start_main_~n~0) [2019-11-15 23:22:37,553 INFO L443 ceAbstractionStarter]: For program point L147-4(lines 147 148) no Hoare annotation was computed. [2019-11-15 23:22:37,553 INFO L439 ceAbstractionStarter]: At program point L106(lines 83 107) the Hoare annotation is: (= (_ bv5 32) ULTIMATE.start_main_~n~0) [2019-11-15 23:22:37,553 INFO L443 ceAbstractionStarter]: For program point L139-2(lines 139 140) no Hoare annotation was computed. [2019-11-15 23:22:37,553 INFO L439 ceAbstractionStarter]: At program point L139-3(lines 139 140) the Hoare annotation is: (= (_ bv5 32) ULTIMATE.start_main_~n~0) [2019-11-15 23:22:37,554 INFO L443 ceAbstractionStarter]: For program point L139-4(lines 139 140) no Hoare annotation was computed. [2019-11-15 23:22:37,554 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 23:22:37,554 INFO L443 ceAbstractionStarter]: For program point L123-2(lines 123 124) no Hoare annotation was computed. [2019-11-15 23:22:37,554 INFO L439 ceAbstractionStarter]: At program point L123-3(lines 123 124) the Hoare annotation is: (= (_ bv5 32) ULTIMATE.start_main_~n~0) [2019-11-15 23:22:37,554 INFO L443 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2019-11-15 23:22:37,554 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 23:22:37,554 INFO L443 ceAbstractionStarter]: For program point L91-2(lines 91 102) no Hoare annotation was computed. [2019-11-15 23:22:37,554 INFO L439 ceAbstractionStarter]: At program point L91-3(lines 91 102) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_main_~i~0) (= (_ bv5 32) ULTIMATE.start_main_~n~0) (exists ((|~#b~0.base| (_ BitVec 32))) (and (= (select |#memory_int| |~#b~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))) (not (= |~#a~0.base| |~#b~0.base|)))) (= (select |#memory_int| |~#a~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) [2019-11-15 23:22:37,555 INFO L443 ceAbstractionStarter]: For program point L91-4(lines 91 102) no Hoare annotation was computed. [2019-11-15 23:22:37,555 INFO L443 ceAbstractionStarter]: For program point L116-2(lines 116 134) no Hoare annotation was computed. [2019-11-15 23:22:37,555 INFO L439 ceAbstractionStarter]: At program point L116-3(lines 116 134) the Hoare annotation is: (= (_ bv5 32) ULTIMATE.start_main_~n~0) [2019-11-15 23:22:37,555 INFO L443 ceAbstractionStarter]: For program point L116-4(lines 116 134) no Hoare annotation was computed. [2019-11-15 23:22:37,581 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:446) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:555) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:255) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:212) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 23:22:37,594 INFO L168 Benchmark]: Toolchain (without parser) took 61511.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -170.6 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:22:37,595 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:22:37,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:22:37,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.44 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. [2019-11-15 23:22:37,598 INFO L168 Benchmark]: Boogie Preprocessor took 101.99 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. [2019-11-15 23:22:37,598 INFO L168 Benchmark]: RCFGBuilder took 13311.59 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:22:37,602 INFO L168 Benchmark]: TraceAbstraction took 47443.49 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 58.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.8 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:22:37,605 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 579.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.44 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. * Boogie Preprocessor took 101.99 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. * RCFGBuilder took 13311.59 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 47443.49 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 58.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.8 MB). Peak memory consumption was 40.4 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: 136]: Loop Invariant Derived loop invariant: 5bv32 == n - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 5bv32 == n - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 5bv32 == n - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...