./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/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 08947af3b6f9b8a272faa540a059213a9b1de888 .................................................................................................................................................................................................................................................................................................................................... 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/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float22.i -s /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/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 08947af3b6f9b8a272faa540a059213a9b1de888 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:59:53,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:53,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:53,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:53,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:53,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:53,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:53,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:53,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:53,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:53,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:53,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:53,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:53,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:53,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:53,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:53,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:53,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:53,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:53,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:53,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:53,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:53,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:53,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:53,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:53,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:53,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:53,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:53,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:53,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:53,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:53,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:53,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:53,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:53,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:53,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:53,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:53,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:53,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:53,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:53,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:53,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:59:53,370 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:53,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:53,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:53,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:53,371 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:53,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:53,372 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:53,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:53,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:53,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:53,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:59:53,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:59:53,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:59:53,373 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:53,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:59:53,373 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:53,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:59:53,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:53,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:53,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:59:53,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:59:53,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:53,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:53,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:59:53,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:59:53,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:53,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:59:53,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:59:53,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/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 -> 08947af3b6f9b8a272faa540a059213a9b1de888 [2019-10-22 08:59:53,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:53,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:53,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:53,411 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:53,412 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:53,412 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-10-22 08:59:53,454 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/data/f7298b159/c82b23f766324aeba9baec42f65eae26/FLAG0a5a82800 [2019-10-22 08:59:53,841 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:53,842 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-10-22 08:59:53,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/data/f7298b159/c82b23f766324aeba9baec42f65eae26/FLAG0a5a82800 [2019-10-22 08:59:53,857 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/data/f7298b159/c82b23f766324aeba9baec42f65eae26 [2019-10-22 08:59:53,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:53,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:59:53,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:53,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:53,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:53,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:53" (1/1) ... [2019-10-22 08:59:53,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@117dbde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:53, skipping insertion in model container [2019-10-22 08:59:53,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:53" (1/1) ... [2019-10-22 08:59:53,874 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:53,892 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:54,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:54,075 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:54,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:54,201 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:54,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:54 WrapperNode [2019-10-22 08:59:54,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:54,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:54,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:59:54,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:59:54,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:54" (1/1) ... [2019-10-22 08:59:54,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:54" (1/1) ... [2019-10-22 08:59:54,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:54,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:54,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:54,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:54,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:54" (1/1) ... [2019-10-22 08:59:54,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:54" (1/1) ... [2019-10-22 08:59:54,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:54" (1/1) ... [2019-10-22 08:59:54,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:54" (1/1) ... [2019-10-22 08:59:54,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:54" (1/1) ... [2019-10-22 08:59:54,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:54" (1/1) ... [2019-10-22 08:59:54,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:54" (1/1) ... [2019-10-22 08:59:54,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:54,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:54,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:54,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:54,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:59:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 08:59:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:59:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 08:59:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:59:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:59:54,827 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:54,827 INFO L284 CfgBuilder]: Removed 26 assume(true) statements. [2019-10-22 08:59:54,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:54 BoogieIcfgContainer [2019-10-22 08:59:54,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:54,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:59:54,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:59:54,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:59:54,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:59:53" (1/3) ... [2019-10-22 08:59:54,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b39370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:54, skipping insertion in model container [2019-10-22 08:59:54,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:54" (2/3) ... [2019-10-22 08:59:54,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b39370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:54, skipping insertion in model container [2019-10-22 08:59:54,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:54" (3/3) ... [2019-10-22 08:59:54,835 INFO L109 eAbstractionObserver]: Analyzing ICFG float22.i [2019-10-22 08:59:54,847 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:59:54,855 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-22 08:59:54,864 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-22 08:59:54,887 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:59:54,888 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:59:54,888 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:59:54,888 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:54,888 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:54,888 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:59:54,888 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:54,888 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:59:54,901 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-10-22 08:59:54,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:59:54,906 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:54,907 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:54,908 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:54,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:54,914 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2019-10-22 08:59:54,921 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:54,921 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393799175] [2019-10-22 08:59:54,922 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:54,922 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:54,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:55,178 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:55,179 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:59:55,190 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,191 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,192 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,192 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,192 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,193 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,193 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,193 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,194 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,194 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,194 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,195 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,195 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,195 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,195 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-10-22 08:59:55,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-10-22 08:59:55,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-10-22 08:59:55,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-10-22 08:59:55,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-10-22 08:59:55,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-10-22 08:59:55,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-10-22 08:59:55,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-10-22 08:59:55,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-10-22 08:59:55,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-10-22 08:59:55,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-10-22 08:59:55,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-10-22 08:59:55,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-10-22 08:59:55,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:59:55 BoogieIcfgContainer [2019-10-22 08:59:55,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:59:55,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:55,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:55,217 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:55,217 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:54" (3/4) ... [2019-10-22 08:59:55,223 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:59:55,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:55,225 INFO L168 Benchmark]: Toolchain (without parser) took 1364.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:55,226 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:55,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 943.2 MB in the beginning and 1.2 GB in the end (delta: -215.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:55,227 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.29 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. [2019-10-22 08:59:55,228 INFO L168 Benchmark]: Boogie Preprocessor took 72.80 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:55,228 INFO L168 Benchmark]: RCFGBuilder took 507.50 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: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:55,229 INFO L168 Benchmark]: TraceAbstraction took 387.25 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: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:55,231 INFO L168 Benchmark]: Witness Printer took 6.73 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. [2019-10-22 08:59:55,234 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 340.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 943.2 MB in the beginning and 1.2 GB in the end (delta: -215.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.29 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. * Boogie Preprocessor took 72.80 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 507.50 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: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 387.25 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: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Witness Printer took 6.73 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. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 133]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 119. Possible FailurePath: [L128] ieee754_float f1, f2; [L117] ieee754_float c; [L119] c.ieee.negative = index & 0x1 [L120] c.ieee.exponent = 0 [L121] c.ieee.mantissa = 0 [L123] return c; [L123] return c; VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] [L130] f1 = returnsStructure(0) [L117] ieee754_float c; [L119] c.ieee.negative = index & 0x1 [L120] c.ieee.exponent = 0 [L121] c.ieee.mantissa = 0 [L123] return c; [L123] return c; VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=1] [L131] f2 = returnsStructure(1) [L133] EXPR f1.ieee.negative [L133] EXPR f2.ieee.negative VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=1] [L133] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L133] __VERIFIER_error() VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate 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 [2019-10-22 08:59:57,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:57,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:57,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:57,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:57,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:57,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:57,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:57,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:57,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:57,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:57,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:57,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:57,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:57,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:57,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:57,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:57,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:57,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:57,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:57,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:57,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:57,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:57,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:57,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:57,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:57,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:57,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:57,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:57,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:57,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:57,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:57,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:57,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:57,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:57,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:57,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:57,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:57,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:57,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:57,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:57,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:59:57,268 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:57,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:57,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:57,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:57,269 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:57,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:57,269 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:57,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:57,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:57,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:59:57,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:59:57,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:59:57,270 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:59:57,270 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:59:57,271 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:57,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:59:57,271 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:57,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:59:57,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:57,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:57,272 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:59:57,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:59:57,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:57,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:57,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:59:57,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:59:57,272 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:59:57,273 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:59:57,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:59:57,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:59:57,273 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/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/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 -> 08947af3b6f9b8a272faa540a059213a9b1de888 [2019-10-22 08:59:57,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:57,309 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:57,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:57,313 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:57,313 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:57,314 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-10-22 08:59:57,360 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/data/480e3d75a/4df1944ffd864ca9ad2d7d1196f50de5/FLAG98073511a [2019-10-22 08:59:57,736 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:57,737 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-10-22 08:59:57,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/data/480e3d75a/4df1944ffd864ca9ad2d7d1196f50de5/FLAG98073511a [2019-10-22 08:59:57,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/data/480e3d75a/4df1944ffd864ca9ad2d7d1196f50de5 [2019-10-22 08:59:57,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:57,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:59:57,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:57,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:57,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:57,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:57" (1/1) ... [2019-10-22 08:59:57,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733127f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57, skipping insertion in model container [2019-10-22 08:59:57,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:57" (1/1) ... [2019-10-22 08:59:57,771 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:57,790 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:57,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:57,930 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:57,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:57,987 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:57,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57 WrapperNode [2019-10-22 08:59:57,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:57,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:57,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:59:57,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:59:58,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57" (1/1) ... [2019-10-22 08:59:58,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57" (1/1) ... [2019-10-22 08:59:58,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:58,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:58,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:58,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:58,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57" (1/1) ... [2019-10-22 08:59:58,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57" (1/1) ... [2019-10-22 08:59:58,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57" (1/1) ... [2019-10-22 08:59:58,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57" (1/1) ... [2019-10-22 08:59:58,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57" (1/1) ... [2019-10-22 08:59:58,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57" (1/1) ... [2019-10-22 08:59:58,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57" (1/1) ... [2019-10-22 08:59:58,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:58,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:58,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:58,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:58,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:58,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:59:58,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-10-22 08:59:58,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 08:59:58,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:58,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:58,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-10-22 08:59:58,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:59:58,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:59:58,690 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:58,690 INFO L284 CfgBuilder]: Removed 26 assume(true) statements. [2019-10-22 08:59:58,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:58 BoogieIcfgContainer [2019-10-22 08:59:58,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:58,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:59:58,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:59:58,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:59:58,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:59:57" (1/3) ... [2019-10-22 08:59:58,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d34d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:58, skipping insertion in model container [2019-10-22 08:59:58,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:57" (2/3) ... [2019-10-22 08:59:58,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d34d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:58, skipping insertion in model container [2019-10-22 08:59:58,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:58" (3/3) ... [2019-10-22 08:59:58,696 INFO L109 eAbstractionObserver]: Analyzing ICFG float22.i [2019-10-22 08:59:58,703 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:59:58,708 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-22 08:59:58,716 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-22 08:59:58,736 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:59:58,736 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:59:58,736 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:59:58,736 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:58,736 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:58,736 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:59:58,737 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:58,737 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:59:58,747 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-10-22 08:59:58,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:59:58,752 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:58,752 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:59:58,755 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:58,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:58,760 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2019-10-22 08:59:58,769 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:59:58,769 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385110154] [2019-10-22 08:59:58,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/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 [2019-10-22 08:59:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:58,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-22 08:59:58,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:59,115 INFO L341 Elim1Store]: treesize reduction 16, result has 74.6 percent of original size [2019-10-22 08:59:59,115 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 70 [2019-10-22 08:59:59,117 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:59,288 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2019-10-22 08:59:59,288 INFO L567 ElimStorePlain]: treesize reduction 36, result has 61.7 percent of original size [2019-10-22 08:59:59,318 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2019-10-22 08:59:59,319 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:59,347 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:59,348 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:59:59,349 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:62 [2019-10-22 08:59:59,503 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:59,503 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 57 [2019-10-22 08:59:59,505 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:59,731 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-10-22 08:59:59,731 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:59,987 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-10-22 08:59:59,987 INFO L341 Elim1Store]: treesize reduction 74, result has 54.3 percent of original size [2019-10-22 08:59:59,988 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 140 [2019-10-22 08:59:59,990 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:00,231 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-10-22 09:00:00,232 INFO L567 ElimStorePlain]: treesize reduction 44, result has 74.0 percent of original size [2019-10-22 09:00:00,234 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:00,240 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:00,241 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:157, output treesize:112 [2019-10-22 09:00:00,242 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:00,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:00,323 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:00,353 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 52 [2019-10-22 09:00:00,354 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:00,360 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:00,391 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:00,392 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 121 treesize of output 93 [2019-10-22 09:00:00,393 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:00,440 INFO L567 ElimStorePlain]: treesize reduction 50, result has 42.5 percent of original size [2019-10-22 09:00:00,441 INFO L496 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:00,442 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:256, output treesize:25 [2019-10-22 09:00:00,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:00,459 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:08,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:08,945 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385110154] [2019-10-22 09:00:08,946 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:08,946 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 09:00:08,946 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485968864] [2019-10-22 09:00:08,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:00:08,951 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:00:08,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:00:08,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=36, Unknown=4, NotChecked=0, Total=56 [2019-10-22 09:00:08,966 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 8 states. [2019-10-22 09:00:09,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:09,401 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2019-10-22 09:00:09,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:00:09,404 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2019-10-22 09:00:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:09,411 INFO L225 Difference]: With dead ends: 57 [2019-10-22 09:00:09,411 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 09:00:09,414 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=22, Invalid=46, Unknown=4, NotChecked=0, Total=72 [2019-10-22 09:00:09,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 09:00:09,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-22 09:00:09,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 09:00:09,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2019-10-22 09:00:09,439 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 6 [2019-10-22 09:00:09,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:09,439 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2019-10-22 09:00:09,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:00:09,439 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2019-10-22 09:00:09,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 09:00:09,440 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:09,440 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:09,641 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 09:00:09,641 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:09,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:09,642 INFO L82 PathProgramCache]: Analyzing trace with hash 2061469933, now seen corresponding path program 1 times [2019-10-22 09:00:09,642 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:09,643 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007505837] [2019-10-22 09:00:09,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/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 [2019-10-22 09:00:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:09,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-22 09:00:09,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:09,849 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 48 treesize of output 42 [2019-10-22 09:00:09,852 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:09,854 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:09,854 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:09,856 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:09,856 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:09,856 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:6 [2019-10-22 09:00:09,919 INFO L341 Elim1Store]: treesize reduction 16, result has 74.6 percent of original size [2019-10-22 09:00:09,919 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 70 [2019-10-22 09:00:09,920 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:10,010 INFO L567 ElimStorePlain]: treesize reduction 36, result has 61.7 percent of original size [2019-10-22 09:00:10,022 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2019-10-22 09:00:10,022 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:10,046 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:10,047 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:10,048 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:62 [2019-10-22 09:00:10,131 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:10,131 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 57 [2019-10-22 09:00:10,132 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:10,250 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-10-22 09:00:10,250 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:10,418 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-10-22 09:00:10,419 INFO L341 Elim1Store]: treesize reduction 74, result has 54.3 percent of original size [2019-10-22 09:00:10,419 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 140 [2019-10-22 09:00:10,420 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:10,628 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-10-22 09:00:10,629 INFO L567 ElimStorePlain]: treesize reduction 44, result has 74.0 percent of original size [2019-10-22 09:00:10,630 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:10,632 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:10,633 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:157, output treesize:112 [2019-10-22 09:00:10,634 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:10,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:10,701 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:10,730 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 54 [2019-10-22 09:00:10,731 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:10,736 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:10,773 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:10,773 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 123 treesize of output 95 [2019-10-22 09:00:10,775 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:10,813 INFO L567 ElimStorePlain]: treesize reduction 50, result has 42.5 percent of original size [2019-10-22 09:00:10,814 INFO L496 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:10,814 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:260, output treesize:25 [2019-10-22 09:00:10,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:10,830 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:14,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:14,975 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007505837] [2019-10-22 09:00:14,975 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:14,975 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2019-10-22 09:00:14,975 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885426037] [2019-10-22 09:00:14,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:00:14,977 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:00:14,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:00:14,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=52, Unknown=1, NotChecked=0, Total=72 [2019-10-22 09:00:14,979 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 9 states. [2019-10-22 09:00:16,841 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 38 [2019-10-22 09:00:17,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:17,110 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-10-22 09:00:17,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:00:17,112 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2019-10-22 09:00:17,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:17,112 INFO L225 Difference]: With dead ends: 25 [2019-10-22 09:00:17,112 INFO L226 Difference]: Without dead ends: 23 [2019-10-22 09:00:17,113 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=32, Invalid=77, Unknown=1, NotChecked=0, Total=110 [2019-10-22 09:00:17,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-22 09:00:17,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-22 09:00:17,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-22 09:00:17,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2019-10-22 09:00:17,119 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 11 [2019-10-22 09:00:17,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:17,119 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2019-10-22 09:00:17,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:00:17,119 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2019-10-22 09:00:17,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 09:00:17,120 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:17,120 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:17,326 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 09:00:17,326 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:17,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:17,328 INFO L82 PathProgramCache]: Analyzing trace with hash -2079313263, now seen corresponding path program 1 times [2019-10-22 09:00:17,328 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:17,329 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393266596] [2019-10-22 09:00:17,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_83c1db74-723c-4058-9735-410ac2e296bb/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 [2019-10-22 09:00:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:17,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 36 conjunts are in the unsatisfiable core [2019-10-22 09:00:17,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:17,675 INFO L341 Elim1Store]: treesize reduction 16, result has 70.9 percent of original size [2019-10-22 09:00:17,675 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 55 [2019-10-22 09:00:17,676 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:17,728 INFO L567 ElimStorePlain]: treesize reduction 36, result has 37.9 percent of original size [2019-10-22 09:00:17,729 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:17,729 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2019-10-22 09:00:17,853 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2019-10-22 09:00:17,854 INFO L341 Elim1Store]: treesize reduction 24, result has 77.4 percent of original size [2019-10-22 09:00:17,854 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 103 [2019-10-22 09:00:17,855 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:17,924 INFO L567 ElimStorePlain]: treesize reduction 50, result has 60.0 percent of original size [2019-10-22 09:00:17,931 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 48 treesize of output 42 [2019-10-22 09:00:17,934 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:17,935 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:17,936 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:17,948 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:17,949 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. [2019-10-22 09:00:17,949 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:85, output treesize:33 [2019-10-22 09:00:18,061 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:18,164 INFO L341 Elim1Store]: treesize reduction 16, result has 83.7 percent of original size [2019-10-22 09:00:18,164 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 31 treesize of output 103 [2019-10-22 09:00:18,166 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:18,335 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-10-22 09:00:18,335 INFO L567 ElimStorePlain]: treesize reduction 50, result has 60.6 percent of original size [2019-10-22 09:00:18,344 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:18,345 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:18,367 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:18,368 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 48 [2019-10-22 09:00:18,368 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:18,431 INFO L567 ElimStorePlain]: treesize reduction 16, result has 83.5 percent of original size [2019-10-22 09:00:18,432 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. [2019-10-22 09:00:18,432 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:87, output treesize:81 [2019-10-22 09:00:18,527 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:18,557 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:18,557 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 57 [2019-10-22 09:00:18,558 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:18,731 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-10-22 09:00:18,731 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:18,830 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:18,830 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 94 treesize of output 157 [2019-10-22 09:00:18,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:18,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:18,832 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:18,833 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:18,945 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-10-22 09:00:18,946 INFO L567 ElimStorePlain]: treesize reduction 60, result has 64.5 percent of original size [2019-10-22 09:00:18,946 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:18,948 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 09:00:18,948 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:145, output treesize:114 [2019-10-22 09:00:18,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:18,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:19,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:19,026 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 54 [2019-10-22 09:00:19,027 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:19,037 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:00:19,076 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:00:19,077 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 117 treesize of output 97 [2019-10-22 09:00:19,078 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:00:19,126 INFO L567 ElimStorePlain]: treesize reduction 54, result has 40.7 percent of original size [2019-10-22 09:00:19,126 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:00:19,127 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:228, output treesize:25 [2019-10-22 09:00:19,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:19,150 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:23,309 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_24| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_23| (_ BitVec 32)) (|v_ULTIMATE.start_returnsField_~#c~0.base_18| (_ BitVec 32)) (|v_ULTIMATE.start_returnsField_~#c~0.base_17| (_ BitVec 32))) (let ((.cse4 (store (store (store (select |c_#memory_int| |v_ULTIMATE.start_returnsField_~#c~0.base_17|) (_ bv0 32) (_ bv0 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (let ((.cse1 (let ((.cse6 (store |c_#memory_int| |v_ULTIMATE.start_returnsField_~#c~0.base_17| .cse4))) (store .cse6 |c_ULTIMATE.start_testTwo_~#f1~1.base| (store (select .cse6 |c_ULTIMATE.start_testTwo_~#f1~1.base|) |c_ULTIMATE.start_testTwo_~#f1~1.offset| |v_skolemized_q#valueAsBitvector_23|))))) (let ((.cse2 (store (store (store (select .cse1 |v_ULTIMATE.start_returnsField_~#c~0.base_18|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_17|))) (not (= (select (select (let ((.cse0 (store .cse1 |v_ULTIMATE.start_returnsField_~#c~0.base_18| .cse2))) (store .cse0 |c_ULTIMATE.start_testTwo_~#f2~1.base| (store (select .cse0 |c_ULTIMATE.start_testTwo_~#f2~1.base|) |c_ULTIMATE.start_testTwo_~#f2~1.offset| |v_skolemized_q#valueAsBitvector_24|))) |c_ULTIMATE.start_testTwo_~#f1~1.base|) |c_ULTIMATE.start_testTwo_~#f1~1.offset|) |v_skolemized_q#valueAsBitvector_24|)) (not (= (select (store |c_#valid| |v_ULTIMATE.start_returnsField_~#c~0.base_17| (_ bv0 1)) |v_ULTIMATE.start_returnsField_~#c~0.base_18|) (_ bv0 1))) (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_23|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_23|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_23|)) (let ((.cse3 (select .cse4 (_ bv0 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (not (= (let ((.cse5 (select .cse2 (_ bv0 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))) (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_24|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_24|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_24|))))))))) is different from false [2019-10-22 09:00:23,653 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 09:00:23,654 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.MultiDimensionalNestedStore.getInnermost(MultiDimensionalNestedStore.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:335) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) 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) [2019-10-22 09:00:23,658 INFO L168 Benchmark]: Toolchain (without parser) took 25900.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 951.0 MB in the beginning and 954.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 197.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:23,658 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:23,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.21 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 934.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:23,659 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:23,659 INFO L168 Benchmark]: Boogie Preprocessor took 55.38 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. [2019-10-22 09:00:23,659 INFO L168 Benchmark]: RCFGBuilder took 536.57 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:23,660 INFO L168 Benchmark]: TraceAbstraction took 24964.61 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 954.4 MB in the end (delta: 133.5 MB). Peak memory consumption was 200.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:23,666 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 229.21 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 934.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 110.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 536.57 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24964.61 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 954.4 MB in the end (delta: 133.5 MB). Peak memory consumption was 200.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.MultiDimensionalNestedStore.getInnermost(MultiDimensionalNestedStore.java:121) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...