./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/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 b649b8f673a0a47da0b16e77db6ba5e693ee3ba7 ..................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/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 b649b8f673a0a47da0b16e77db6ba5e693ee3ba7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:34:54,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:34:54,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:34:54,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:34:54,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:34:54,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:34:54,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:34:54,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:34:54,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:34:54,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:34:54,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:34:54,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:34:54,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:34:54,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:34:54,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:34:54,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:34:54,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:34:54,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:34:54,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:34:54,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:34:54,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:34:54,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:34:54,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:34:54,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:34:54,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:34:54,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:34:54,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:34:54,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:34:54,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:34:54,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:34:54,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:34:54,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:34:54,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:34:54,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:34:54,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:34:54,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:34:54,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:34:54,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:34:54,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:34:54,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:34:54,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:34:54,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:34:54,892 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:34:54,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:34:54,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:34:54,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:34:54,894 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:34:54,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:34:54,894 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:34:54,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:34:54,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:34:54,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:34:54,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:34:54,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:34:54,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:34:54,896 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:34:54,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:34:54,897 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:34:54,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:34:54,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:34:54,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:34:54,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:34:54,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:34:54,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:34:54,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:34:54,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:34:54,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:34:54,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:34:54,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:34:54,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:34:54,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/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 -> b649b8f673a0a47da0b16e77db6ba5e693ee3ba7 [2019-11-15 22:34:54,926 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:34:54,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:34:54,939 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:34:54,941 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:34:54,941 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:34:54,942 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2019-11-15 22:34:54,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/data/39538ddd1/2826796647ea4a6a8667821e6f8e42cf/FLAG21aa40025 [2019-11-15 22:34:55,342 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:34:55,342 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2019-11-15 22:34:55,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/data/39538ddd1/2826796647ea4a6a8667821e6f8e42cf/FLAG21aa40025 [2019-11-15 22:34:55,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/data/39538ddd1/2826796647ea4a6a8667821e6f8e42cf [2019-11-15 22:34:55,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:34:55,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:34:55,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:34:55,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:34:55,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:34:55,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:34:55" (1/1) ... [2019-11-15 22:34:55,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f72a3b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:55, skipping insertion in model container [2019-11-15 22:34:55,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:34:55" (1/1) ... [2019-11-15 22:34:55,733 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:34:55,750 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:34:56,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:34:56,007 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:34:56,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:34:56,053 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:34:56,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:56 WrapperNode [2019-11-15 22:34:56,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:34:56,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:34:56,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:34:56,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:34:56,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:56" (1/1) ... [2019-11-15 22:34:56,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:56" (1/1) ... [2019-11-15 22:34:56,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:34:56,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:34:56,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:34:56,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:34:56,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:56" (1/1) ... [2019-11-15 22:34:56,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:56" (1/1) ... [2019-11-15 22:34:56,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:56" (1/1) ... [2019-11-15 22:34:56,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:56" (1/1) ... [2019-11-15 22:34:56,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:56" (1/1) ... [2019-11-15 22:34:56,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:56" (1/1) ... [2019-11-15 22:34:56,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:56" (1/1) ... [2019-11-15 22:34:56,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:34:56,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:34:56,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:34:56,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:34:56,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:34:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:34:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 22:34:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:34:56,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:34:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:34:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:34:56,521 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:34:56,522 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-15 22:34:56,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:34:56 BoogieIcfgContainer [2019-11-15 22:34:56,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:34:56,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:34:56,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:34:56,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:34:56,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:34:55" (1/3) ... [2019-11-15 22:34:56,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1be367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:34:56, skipping insertion in model container [2019-11-15 22:34:56,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:34:56" (2/3) ... [2019-11-15 22:34:56,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1be367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:34:56, skipping insertion in model container [2019-11-15 22:34:56,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:34:56" (3/3) ... [2019-11-15 22:34:56,531 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2019-11-15 22:34:56,539 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:34:56,545 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:34:56,552 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:34:56,569 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:34:56,570 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:34:56,570 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:34:56,570 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:34:56,570 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:34:56,570 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:34:56,570 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:34:56,571 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:34:56,584 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-11-15 22:34:56,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:34:56,590 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:34:56,591 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:34:56,593 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:34:56,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:34:56,598 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2019-11-15 22:34:56,605 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:34:56,605 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000199432] [2019-11-15 22:34:56,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:34:56,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:34:56,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:34:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:34:56,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:34:56,698 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000199432] [2019-11-15 22:34:56,699 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:34:56,699 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:34:56,699 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272845797] [2019-11-15 22:34:56,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:34:56,703 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:34:56,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:34:56,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:34:56,719 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-11-15 22:34:56,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:34:56,735 INFO L93 Difference]: Finished difference Result 62 states and 98 transitions. [2019-11-15 22:34:56,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:34:56,737 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 22:34:56,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:34:56,746 INFO L225 Difference]: With dead ends: 62 [2019-11-15 22:34:56,747 INFO L226 Difference]: Without dead ends: 29 [2019-11-15 22:34:56,749 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:34:56,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-15 22:34:56,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-15 22:34:56,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-15 22:34:56,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2019-11-15 22:34:56,783 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2019-11-15 22:34:56,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:34:56,783 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2019-11-15 22:34:56,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:34:56,784 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2019-11-15 22:34:56,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:34:56,785 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:34:56,785 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:34:56,785 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:34:56,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:34:56,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2019-11-15 22:34:56,786 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:34:56,786 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722349057] [2019-11-15 22:34:56,787 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:34:56,787 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:34:56,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:34:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:34:56,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:34:56,860 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722349057] [2019-11-15 22:34:56,860 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:34:56,861 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:34:56,861 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223733271] [2019-11-15 22:34:56,862 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:34:56,862 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:34:56,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:34:56,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:34:56,863 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 4 states. [2019-11-15 22:34:56,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:34:56,917 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2019-11-15 22:34:56,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:34:56,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-15 22:34:56,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:34:56,918 INFO L225 Difference]: With dead ends: 53 [2019-11-15 22:34:56,918 INFO L226 Difference]: Without dead ends: 44 [2019-11-15 22:34:56,919 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:34:56,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-15 22:34:56,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2019-11-15 22:34:56,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-15 22:34:56,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2019-11-15 22:34:56,926 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2019-11-15 22:34:56,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:34:56,926 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-11-15 22:34:56,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:34:56,927 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2019-11-15 22:34:56,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 22:34:56,928 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:34:56,928 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:34:56,928 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:34:56,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:34:56,929 INFO L82 PathProgramCache]: Analyzing trace with hash -555760345, now seen corresponding path program 1 times [2019-11-15 22:34:56,929 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:34:56,929 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889805156] [2019-11-15 22:34:56,929 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:34:56,929 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:34:56,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:34:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:34:56,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:34:56,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889805156] [2019-11-15 22:34:56,997 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:34:56,997 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:34:56,997 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627128633] [2019-11-15 22:34:56,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:34:56,998 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:34:56,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:34:56,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:34:56,999 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2019-11-15 22:34:57,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:34:57,044 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2019-11-15 22:34:57,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:34:57,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-15 22:34:57,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:34:57,046 INFO L225 Difference]: With dead ends: 55 [2019-11-15 22:34:57,046 INFO L226 Difference]: Without dead ends: 46 [2019-11-15 22:34:57,046 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:34:57,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-15 22:34:57,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2019-11-15 22:34:57,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-15 22:34:57,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2019-11-15 22:34:57,052 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 14 [2019-11-15 22:34:57,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:34:57,052 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-11-15 22:34:57,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:34:57,052 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2019-11-15 22:34:57,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 22:34:57,053 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:34:57,053 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:34:57,053 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:34:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:34:57,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2019-11-15 22:34:57,054 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:34:57,055 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112916389] [2019-11-15 22:34:57,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:34:57,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:34:57,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:34:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:34:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:34:57,137 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:34:57,138 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:34:57,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:34:57 BoogieIcfgContainer [2019-11-15 22:34:57,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:34:57,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:34:57,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:34:57,166 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:34:57,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:34:56" (3/4) ... [2019-11-15 22:34:57,169 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:34:57,169 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:34:57,172 INFO L168 Benchmark]: Toolchain (without parser) took 1451.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -64.4 MB). Peak memory consumption was 42.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:34:57,172 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:34:57,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -145.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:34:57,174 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:34:57,174 INFO L168 Benchmark]: Boogie Preprocessor took 33.66 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:34:57,175 INFO L168 Benchmark]: RCFGBuilder took 391.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2019-11-15 22:34:57,176 INFO L168 Benchmark]: TraceAbstraction took 640.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:34:57,176 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:34:57,179 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 334.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -145.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.66 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 391.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 640.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 85]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 84, overapproximation of someUnaryDOUBLEoperation at line 79. Possible FailurePath: [L79] double x = -0.0; [L80] double y = 0.0; [L24] __uint32_t msw, lsw; [L27] ieee_double_shape_type ew_u; [L28] ew_u.value = (x) [L29] EXPR ew_u.parts.msw [L29] (msw) = ew_u.parts.msw [L30] EXPR ew_u.parts.lsw [L30] (lsw) = ew_u.parts.lsw [L33-L34] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L36-L37] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L39-L40] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L43-L44] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L47] return 0; [L52] COND TRUE __fpclassify_double(x) == 0 [L53] return y; [L81] double res = fmax_double(x, y); [L84] EXPR res == 0.0 && __signbit_double(res) == 0 [L84] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L85] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 135 SDtfs, 32 SDslu, 140 SDs, 0 SdLazy, 30 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2019-11-15 22:34:59,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:34:59,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:34:59,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:34:59,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:34:59,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:34:59,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:34:59,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:34:59,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:34:59,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:34:59,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:34:59,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:34:59,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:34:59,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:34:59,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:34:59,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:34:59,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:34:59,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:34:59,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:34:59,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:34:59,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:34:59,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:34:59,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:34:59,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:34:59,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:34:59,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:34:59,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:34:59,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:34:59,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:34:59,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:34:59,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:34:59,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:34:59,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:34:59,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:34:59,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:34:59,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:34:59,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:34:59,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:34:59,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:34:59,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:34:59,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:34:59,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 22:34:59,408 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:34:59,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:34:59,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:34:59,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:34:59,420 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:34:59,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:34:59,421 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:34:59,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:34:59,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:34:59,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:34:59,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:34:59,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:34:59,422 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 22:34:59,422 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 22:34:59,422 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:34:59,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:34:59,423 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:34:59,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:34:59,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:34:59,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:34:59,424 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:34:59,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:34:59,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:34:59,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:34:59,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:34:59,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:34:59,425 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 22:34:59,426 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 22:34:59,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:34:59,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 22:34:59,427 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/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 -> b649b8f673a0a47da0b16e77db6ba5e693ee3ba7 [2019-11-15 22:34:59,470 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:34:59,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:34:59,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:34:59,492 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:34:59,492 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:34:59,493 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2019-11-15 22:34:59,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/data/2a465a462/8cb03c823d5c458c9b0ba98a44887b83/FLAG3b6bac5be [2019-11-15 22:34:59,970 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:34:59,971 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2019-11-15 22:34:59,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/data/2a465a462/8cb03c823d5c458c9b0ba98a44887b83/FLAG3b6bac5be [2019-11-15 22:35:00,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/data/2a465a462/8cb03c823d5c458c9b0ba98a44887b83 [2019-11-15 22:35:00,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:35:00,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:35:00,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:35:00,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:35:00,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:35:00,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:35:00" (1/1) ... [2019-11-15 22:35:00,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c1d6d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00, skipping insertion in model container [2019-11-15 22:35:00,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:35:00" (1/1) ... [2019-11-15 22:35:00,421 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:35:00,438 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:35:00,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:35:00,621 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:35:00,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:35:00,755 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:35:00,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00 WrapperNode [2019-11-15 22:35:00,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:35:00,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:35:00,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:35:00,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:35:00,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00" (1/1) ... [2019-11-15 22:35:00,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00" (1/1) ... [2019-11-15 22:35:00,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:35:00,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:35:00,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:35:00,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:35:00,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00" (1/1) ... [2019-11-15 22:35:00,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00" (1/1) ... [2019-11-15 22:35:00,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00" (1/1) ... [2019-11-15 22:35:00,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00" (1/1) ... [2019-11-15 22:35:00,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00" (1/1) ... [2019-11-15 22:35:00,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00" (1/1) ... [2019-11-15 22:35:00,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00" (1/1) ... [2019-11-15 22:35:00,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:35:00,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:35:00,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:35:00,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:35:00,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:35:00,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 22:35:00,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:35:00,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 22:35:00,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:35:00,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:35:00,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:35:01,484 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:35:01,484 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-15 22:35:01,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:35:01 BoogieIcfgContainer [2019-11-15 22:35:01,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:35:01,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:35:01,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:35:01,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:35:01,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:35:00" (1/3) ... [2019-11-15 22:35:01,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de1ed1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:35:01, skipping insertion in model container [2019-11-15 22:35:01,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:00" (2/3) ... [2019-11-15 22:35:01,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de1ed1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:35:01, skipping insertion in model container [2019-11-15 22:35:01,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:35:01" (3/3) ... [2019-11-15 22:35:01,493 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2019-11-15 22:35:01,501 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:35:01,508 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:35:01,516 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:35:01,537 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:35:01,537 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:35:01,537 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:35:01,537 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:35:01,537 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:35:01,538 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:35:01,538 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:35:01,538 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:35:01,551 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-11-15 22:35:01,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:35:01,556 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:35:01,557 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:35:01,558 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:35:01,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:01,564 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2019-11-15 22:35:01,573 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:35:01,573 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030776913] [2019-11-15 22:35:01,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 22:35:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:01,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 22:35:01,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:01,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:01,662 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:35:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:01,666 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030776913] [2019-11-15 22:35:01,667 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:35:01,667 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 22:35:01,667 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651740988] [2019-11-15 22:35:01,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 22:35:01,671 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:35:01,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 22:35:01,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:35:01,681 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-11-15 22:35:01,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:01,699 INFO L93 Difference]: Finished difference Result 62 states and 98 transitions. [2019-11-15 22:35:01,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:35:01,700 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 22:35:01,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:35:01,710 INFO L225 Difference]: With dead ends: 62 [2019-11-15 22:35:01,710 INFO L226 Difference]: Without dead ends: 29 [2019-11-15 22:35:01,712 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 22:35:01,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-15 22:35:01,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-15 22:35:01,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-15 22:35:01,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2019-11-15 22:35:01,754 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2019-11-15 22:35:01,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:35:01,755 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2019-11-15 22:35:01,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 22:35:01,755 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2019-11-15 22:35:01,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:35:01,756 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:35:01,756 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:35:01,957 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 22:35:01,957 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:35:01,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:01,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2019-11-15 22:35:01,959 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:35:01,959 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284554009] [2019-11-15 22:35:01,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 22:35:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:02,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 22:35:02,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:02,070 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:35:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:02,094 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284554009] [2019-11-15 22:35:02,094 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:35:02,094 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 22:35:02,094 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848760135] [2019-11-15 22:35:02,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:35:02,096 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:35:02,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:35:02,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:35:02,097 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 6 states. [2019-11-15 22:35:02,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:02,412 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2019-11-15 22:35:02,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:35:02,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-15 22:35:02,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:35:02,414 INFO L225 Difference]: With dead ends: 68 [2019-11-15 22:35:02,414 INFO L226 Difference]: Without dead ends: 59 [2019-11-15 22:35:02,415 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:35:02,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-15 22:35:02,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 31. [2019-11-15 22:35:02,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-15 22:35:02,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2019-11-15 22:35:02,422 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2019-11-15 22:35:02,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:35:02,423 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-11-15 22:35:02,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:35:02,423 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2019-11-15 22:35:02,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 22:35:02,424 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:35:02,424 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:35:02,647 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 22:35:02,652 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:35:02,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:02,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2019-11-15 22:35:02,654 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:35:02,654 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947775955] [2019-11-15 22:35:02,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 22:35:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:02,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 22:35:02,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:02,792 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:35:02,811 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:35:02,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:02,883 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947775955] [2019-11-15 22:35:02,884 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:35:02,884 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 22:35:02,884 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856317213] [2019-11-15 22:35:02,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:35:02,885 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:35:02,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:35:02,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:35:02,886 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 6 states. [2019-11-15 22:35:02,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:02,995 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2019-11-15 22:35:02,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:35:02,996 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-15 22:35:02,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:35:02,997 INFO L225 Difference]: With dead ends: 52 [2019-11-15 22:35:02,997 INFO L226 Difference]: Without dead ends: 28 [2019-11-15 22:35:02,998 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:35:02,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-15 22:35:03,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-15 22:35:03,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-15 22:35:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2019-11-15 22:35:03,002 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 14 [2019-11-15 22:35:03,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:35:03,002 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-11-15 22:35:03,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:35:03,003 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2019-11-15 22:35:03,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 22:35:03,004 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:35:03,004 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:35:03,204 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 22:35:03,205 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:35:03,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:03,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1012446717, now seen corresponding path program 1 times [2019-11-15 22:35:03,205 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:35:03,205 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983034969] [2019-11-15 22:35:03,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-15 22:35:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:03,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 22:35:03,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:03,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:03,307 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:35:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:03,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983034969] [2019-11-15 22:35:03,324 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:35:03,324 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 22:35:03,324 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571106916] [2019-11-15 22:35:03,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:35:03,325 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:35:03,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:35:03,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:35:03,325 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 6 states. [2019-11-15 22:35:03,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:03,426 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2019-11-15 22:35:03,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:35:03,427 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-15 22:35:03,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:35:03,428 INFO L225 Difference]: With dead ends: 65 [2019-11-15 22:35:03,428 INFO L226 Difference]: Without dead ends: 56 [2019-11-15 22:35:03,428 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:35:03,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-15 22:35:03,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 30. [2019-11-15 22:35:03,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-15 22:35:03,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2019-11-15 22:35:03,434 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 16 [2019-11-15 22:35:03,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:35:03,434 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-11-15 22:35:03,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:35:03,435 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2019-11-15 22:35:03,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 22:35:03,435 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:35:03,436 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:35:03,650 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 22:35:03,650 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:35:03,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:03,650 INFO L82 PathProgramCache]: Analyzing trace with hash -414082333, now seen corresponding path program 1 times [2019-11-15 22:35:03,651 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:35:03,651 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144527716] [2019-11-15 22:35:03,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-15 22:35:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:03,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 22:35:03,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:03,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:03,801 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:35:03,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:03,844 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144527716] [2019-11-15 22:35:03,844 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:35:03,845 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-15 22:35:03,845 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728738053] [2019-11-15 22:35:03,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:35:03,846 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:35:03,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:35:03,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:35:03,846 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 4 states. [2019-11-15 22:35:03,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:03,860 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2019-11-15 22:35:03,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:35:03,861 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-15 22:35:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:35:03,861 INFO L225 Difference]: With dead ends: 40 [2019-11-15 22:35:03,861 INFO L226 Difference]: Without dead ends: 30 [2019-11-15 22:35:03,862 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:35:03,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-15 22:35:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-15 22:35:03,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-15 22:35:03,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2019-11-15 22:35:03,867 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 18 [2019-11-15 22:35:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:35:03,867 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2019-11-15 22:35:03,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:35:03,867 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2019-11-15 22:35:03,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 22:35:03,868 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:35:03,868 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:35:04,082 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-15 22:35:04,086 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:35:04,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:04,086 INFO L82 PathProgramCache]: Analyzing trace with hash -356824031, now seen corresponding path program 1 times [2019-11-15 22:35:04,087 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:35:04,087 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432858866] [2019-11-15 22:35:04,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-11-15 22:35:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:04,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 22:35:04,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:04,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:04,236 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:35:04,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:35:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:04,285 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432858866] [2019-11-15 22:35:04,286 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:35:04,286 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-15 22:35:04,286 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105860805] [2019-11-15 22:35:04,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 22:35:04,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:35:04,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 22:35:04,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:35:04,287 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand 9 states. [2019-11-15 22:35:04,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:04,397 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2019-11-15 22:35:04,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:35:04,398 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-11-15 22:35:04,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:35:04,399 INFO L225 Difference]: With dead ends: 42 [2019-11-15 22:35:04,399 INFO L226 Difference]: Without dead ends: 39 [2019-11-15 22:35:04,399 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-11-15 22:35:04,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-15 22:35:04,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2019-11-15 22:35:04,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-15 22:35:04,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-11-15 22:35:04,403 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 18 [2019-11-15 22:35:04,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:35:04,404 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-11-15 22:35:04,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 22:35:04,404 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2019-11-15 22:35:04,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 22:35:04,404 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:35:04,405 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:35:04,606 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-15 22:35:04,606 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:35:04,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:04,607 INFO L82 PathProgramCache]: Analyzing trace with hash -208358251, now seen corresponding path program 1 times [2019-11-15 22:35:04,607 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:35:04,607 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556093307] [2019-11-15 22:35:04,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-11-15 22:35:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:04,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 22:35:04,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:04,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:04,755 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:35:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:04,831 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556093307] [2019-11-15 22:35:04,831 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:35:04,831 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 22:35:04,831 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104406034] [2019-11-15 22:35:04,832 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 22:35:04,832 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:35:04,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 22:35:04,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:35:04,833 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 8 states. [2019-11-15 22:35:04,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:04,968 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2019-11-15 22:35:04,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:35:04,972 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-11-15 22:35:04,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:35:04,973 INFO L225 Difference]: With dead ends: 45 [2019-11-15 22:35:04,973 INFO L226 Difference]: Without dead ends: 27 [2019-11-15 22:35:04,974 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-15 22:35:04,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-15 22:35:04,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-15 22:35:04,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 22:35:04,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-11-15 22:35:04,981 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2019-11-15 22:35:04,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:35:04,982 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-11-15 22:35:04,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 22:35:04,982 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-11-15 22:35:04,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 22:35:04,982 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:35:04,983 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:35:05,183 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-11-15 22:35:05,183 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:35:05,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:05,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1524231306, now seen corresponding path program 1 times [2019-11-15 22:35:05,184 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:35:05,184 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956172089] [2019-11-15 22:35:05,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-11-15 22:35:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:05,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-15 22:35:05,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:05,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:35:05,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:05,426 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:35:05,427 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:35:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:05,657 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956172089] [2019-11-15 22:35:05,657 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:35:05,657 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2019-11-15 22:35:05,658 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382583135] [2019-11-15 22:35:05,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-15 22:35:05,658 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:35:05,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-15 22:35:05,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2019-11-15 22:35:05,659 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 16 states. [2019-11-15 22:35:05,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:05,949 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-15 22:35:05,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 22:35:05,949 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 22 [2019-11-15 22:35:05,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:35:05,949 INFO L225 Difference]: With dead ends: 27 [2019-11-15 22:35:05,950 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:35:05,950 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2019-11-15 22:35:05,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:35:05,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:35:05,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:35:05,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:35:05,951 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-11-15 22:35:05,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:35:05,951 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:35:05,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-15 22:35:05,952 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:35:05,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:35:06,152 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-11-15 22:35:06,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 22:35:06,551 INFO L443 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2019-11-15 22:35:06,551 INFO L443 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2019-11-15 22:35:06,552 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 85) no Hoare annotation was computed. [2019-11-15 22:35:06,552 INFO L439 ceAbstractionStarter]: At program point L69(lines 60 70) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (_ +zero 11 53)) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (= ULTIMATE.start_fmax_double_~x (fp.neg (_ +zero 11 53))) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= ULTIMATE.start_main_~res~0 (_ +zero 11 53)) (= |ULTIMATE.start_fmax_double_#res| (_ +zero 11 53)) |ULTIMATE.start_main_#t~short11| (exists ((v_skolemized_v_prenex_5_3 (_ BitVec 64))) (and (= ULTIMATE.start___signbit_double_~msw~1 ((_ extract 63 32) v_skolemized_v_prenex_5_3)) (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_5_3) ((_ extract 62 52) v_skolemized_v_prenex_5_3) ((_ extract 51 0) v_skolemized_v_prenex_5_3))))) (= ULTIMATE.start___fpclassify_double_~x (_ +zero 11 53))) [2019-11-15 22:35:06,552 INFO L443 ceAbstractionStarter]: For program point L36(lines 36 47) no Hoare annotation was computed. [2019-11-15 22:35:06,552 INFO L443 ceAbstractionStarter]: For program point L36-1(lines 36 47) no Hoare annotation was computed. [2019-11-15 22:35:06,564 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 22:35:06,564 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 22:35:06,564 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2019-11-15 22:35:06,564 INFO L443 ceAbstractionStarter]: For program point L63-1(lines 63 67) no Hoare annotation was computed. [2019-11-15 22:35:06,565 INFO L439 ceAbstractionStarter]: At program point L63-2(lines 63 67) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (_ +zero 11 53)) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= ULTIMATE.start_fmax_double_~x (fp.neg (_ +zero 11 53))) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= ULTIMATE.start_main_~res~0 (_ +zero 11 53)) (= |ULTIMATE.start_fmax_double_#res| (_ +zero 11 53)) |ULTIMATE.start_main_#t~short11| (= ULTIMATE.start___fpclassify_double_~x (_ +zero 11 53))) [2019-11-15 22:35:06,565 INFO L443 ceAbstractionStarter]: For program point L63-3(lines 63 67) no Hoare annotation was computed. [2019-11-15 22:35:06,566 INFO L439 ceAbstractionStarter]: At program point L47(lines 23 48) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (exists ((v_skolemized_v_prenex_2_3 (_ BitVec 64))) (and (= ((_ extract 63 32) v_skolemized_v_prenex_2_3) ULTIMATE.start___fpclassify_double_~msw~0) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_2_3) ((_ extract 62 52) v_skolemized_v_prenex_2_3) ((_ extract 51 0) v_skolemized_v_prenex_2_3)) (fp.neg (_ +zero 11 53))))) (= ULTIMATE.start_fmax_double_~x .cse0) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|)) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0))) [2019-11-15 22:35:06,567 INFO L439 ceAbstractionStarter]: At program point L47-1(lines 23 48) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (_ +zero 11 53)) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|)) (= ULTIMATE.start_fmax_double_~x (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x (_ +zero 11 53))) [2019-11-15 22:35:06,567 INFO L443 ceAbstractionStarter]: For program point L39(lines 39 47) no Hoare annotation was computed. [2019-11-15 22:35:06,567 INFO L443 ceAbstractionStarter]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2019-11-15 22:35:06,567 INFO L446 ceAbstractionStarter]: At program point L89(lines 72 90) the Hoare annotation is: true [2019-11-15 22:35:06,567 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 22:35:06,567 INFO L443 ceAbstractionStarter]: For program point L57(line 57) no Hoare annotation was computed. [2019-11-15 22:35:06,567 INFO L443 ceAbstractionStarter]: For program point L57-2(line 57) no Hoare annotation was computed. [2019-11-15 22:35:06,568 INFO L439 ceAbstractionStarter]: At program point L57-3(lines 50 58) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (_ +zero 11 53)) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= ULTIMATE.start_fmax_double_~x (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= |ULTIMATE.start_fmax_double_#res| (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x (_ +zero 11 53))) [2019-11-15 22:35:06,568 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 22:35:06,568 INFO L443 ceAbstractionStarter]: For program point L26-1(lines 26 31) no Hoare annotation was computed. [2019-11-15 22:35:06,568 INFO L439 ceAbstractionStarter]: At program point L26-2(lines 26 31) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ULTIMATE.start_fmax_double_~x .cse0) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0))) [2019-11-15 22:35:06,568 INFO L443 ceAbstractionStarter]: For program point L26-3(lines 23 48) no Hoare annotation was computed. [2019-11-15 22:35:06,568 INFO L443 ceAbstractionStarter]: For program point L26-5(lines 26 31) no Hoare annotation was computed. [2019-11-15 22:35:06,568 INFO L439 ceAbstractionStarter]: At program point L26-6(lines 26 31) the Hoare annotation is: (and (= ULTIMATE.start_fmax_double_~x (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x (_ +zero 11 53))) [2019-11-15 22:35:06,568 INFO L443 ceAbstractionStarter]: For program point L84(line 84) no Hoare annotation was computed. [2019-11-15 22:35:06,568 INFO L443 ceAbstractionStarter]: For program point L26-7(lines 23 48) no Hoare annotation was computed. [2019-11-15 22:35:06,569 INFO L443 ceAbstractionStarter]: For program point L84-2(lines 84 87) no Hoare annotation was computed. [2019-11-15 22:35:06,569 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 47) no Hoare annotation was computed. [2019-11-15 22:35:06,569 INFO L443 ceAbstractionStarter]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2019-11-15 22:35:06,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,591 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,591 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,591 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,592 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,592 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,592 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,592 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,593 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,601 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,611 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,611 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,611 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,612 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,614 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,614 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,614 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,615 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:35:06 BoogieIcfgContainer [2019-11-15 22:35:06,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:35:06,620 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:35:06,620 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:35:06,620 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:35:06,621 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:35:01" (3/4) ... [2019-11-15 22:35:06,624 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:35:06,641 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-15 22:35:06,642 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-15 22:35:06,642 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 22:35:06,674 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_skolemized_v_prenex_2_3 : bv64 :: v_skolemized_v_prenex_2_3[63:32] == msw && ~fp~LONGDOUBLE(v_skolemized_v_prenex_2_3[63:63], v_skolemized_v_prenex_2_3[62:52], v_skolemized_v_prenex_2_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && !(0bv32 == \result)) && y == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2019-11-15 22:35:06,675 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~Pluszero~LONGDOUBLE() && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() [2019-11-15 22:35:06,676 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~Pluszero~LONGDOUBLE() && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && y == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() [2019-11-15 22:35:06,676 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~Pluszero~LONGDOUBLE() && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && \result == 0bv32) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && y == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && (\exists v_skolemized_v_prenex_5_3 : bv64 :: msw == v_skolemized_v_prenex_5_3[63:32] && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_5_3[63:63], v_skolemized_v_prenex_5_3[62:52], v_skolemized_v_prenex_5_3[51:0]))) && x == ~Pluszero~LONGDOUBLE() [2019-11-15 22:35:06,677 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~Pluszero~LONGDOUBLE() && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && !(0bv32 == \result)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() [2019-11-15 22:35:06,709 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6aad2312-d89b-424e-9cf0-7f40222c8f90/bin/uautomizer/witness.graphml [2019-11-15 22:35:06,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:35:06,711 INFO L168 Benchmark]: Toolchain (without parser) took 6303.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.7 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -238.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:06,711 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-15 22:35:06,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:06,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:06,712 INFO L168 Benchmark]: Boogie Preprocessor took 40.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:06,712 INFO L168 Benchmark]: RCFGBuilder took 623.73 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: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:06,713 INFO L168 Benchmark]: TraceAbstraction took 5132.92 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -89.9 MB). Peak memory consumption was 298.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:06,713 INFO L168 Benchmark]: Witness Printer took 89.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:06,715 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 348.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.40 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 623.73 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: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5132.92 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -89.9 MB). Peak memory consumption was 298.8 MB. Max. memory is 11.5 GB. * Witness Printer took 89.04 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. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 85]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant [2019-11-15 22:35:06,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,722 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,722 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2019-11-15 22:35:06,722 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] Derived loop invariant: ((((\exists v_skolemized_v_prenex_2_3 : bv64 :: v_skolemized_v_prenex_2_3[63:32] == msw && ~fp~LONGDOUBLE(v_skolemized_v_prenex_2_3[63:63], v_skolemized_v_prenex_2_3[62:52], v_skolemized_v_prenex_2_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && !(0bv32 == \result)) && y == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 60]: Loop Invariant [2019-11-15 22:35:06,722 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,724 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,724 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,724 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,724 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2019-11-15 22:35:06,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] Derived loop invariant: (((((((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~Pluszero~LONGDOUBLE() && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && \result == 0bv32) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && y == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && (\exists v_skolemized_v_prenex_5_3 : bv64 :: msw == v_skolemized_v_prenex_5_3[63:32] && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_5_3[63:63], v_skolemized_v_prenex_5_3[62:52], v_skolemized_v_prenex_5_3[51:0]))) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 50]: Loop Invariant [2019-11-15 22:35:06,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: ((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~Pluszero~LONGDOUBLE() && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 63]: Loop Invariant [2019-11-15 22:35:06,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (((((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~Pluszero~LONGDOUBLE() && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && y == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && y == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 23]: Loop Invariant [2019-11-15 22:35:06,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-11-15 22:35:06,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: ((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~Pluszero~LONGDOUBLE() && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && !(0bv32 == \result)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && y == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Result: SAFE, OverallTime: 5.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 252 SDtfs, 332 SDslu, 546 SDs, 0 SdLazy, 173 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 196 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s Time, 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 61 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 16 NumberOfFragments, 206 HoareAnnotationTreeSize, 8 FomulaSimplifications, 52 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 240 ConstructedInterpolants, 32 QuantifiedInterpolants, 18200 SizeOfPredicates, 38 NumberOfNonLiveVariables, 457 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...