./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0971.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_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/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 1aaf670562012dae9985b4d351583e88df305330 .......................................................................................................................................................................................................................................................................................................... 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_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/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 1aaf670562012dae9985b4d351583e88df305330 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:00:50,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:00:50,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:00:50,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:00:50,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:00:50,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:00:50,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:00:50,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:00:50,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:00:50,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:00:50,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:00:50,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:00:50,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:00:50,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:00:50,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:00:50,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:00:50,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:00:50,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:00:50,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:00:50,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:00:50,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:00:50,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:00:50,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:00:50,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:00:50,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:00:50,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:00:50,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:00:50,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:00:50,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:00:50,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:00:50,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:00:50,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:00:50,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:00:50,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:00:50,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:00:50,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:00:50,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:00:50,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:00:50,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:00:50,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:00:50,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:00:50,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:00:50,418 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:00:50,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:00:50,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:00:50,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:00:50,420 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:00:50,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:00:50,421 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:00:50,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:00:50,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:00:50,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:00:50,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:00:50,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:00:50,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:00:50,422 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:00:50,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:00:50,423 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:00:50,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:00:50,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:00:50,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:00:50,424 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:00:50,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:00:50,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:00:50,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:00:50,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:00:50,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:00:50,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:00:50,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:00:50,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:00:50,425 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_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/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 -> 1aaf670562012dae9985b4d351583e88df305330 [2019-11-16 00:00:50,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:00:50,461 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:00:50,464 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:00:50,465 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:00:50,465 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:00:50,466 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2019-11-16 00:00:50,516 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/data/0c1145d56/0cf0650ab22a4cf4b8582b3789fe4fe3/FLAG0d69a4dc0 [2019-11-16 00:00:50,864 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:00:50,865 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2019-11-16 00:00:50,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/data/0c1145d56/0cf0650ab22a4cf4b8582b3789fe4fe3/FLAG0d69a4dc0 [2019-11-16 00:00:51,255 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/data/0c1145d56/0cf0650ab22a4cf4b8582b3789fe4fe3 [2019-11-16 00:00:51,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:00:51,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:00:51,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:00:51,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:00:51,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:00:51,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:00:51" (1/1) ... [2019-11-16 00:00:51,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2783558f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51, skipping insertion in model container [2019-11-16 00:00:51,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:00:51" (1/1) ... [2019-11-16 00:00:51,272 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:00:51,294 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:00:51,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:00:51,572 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:00:51,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:00:51,639 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:00:51,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51 WrapperNode [2019-11-16 00:00:51,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:00:51,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:00:51,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:00:51,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:00:51,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51" (1/1) ... [2019-11-16 00:00:51,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51" (1/1) ... [2019-11-16 00:00:51,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:00:51,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:00:51,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:00:51,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:00:51,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51" (1/1) ... [2019-11-16 00:00:51,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51" (1/1) ... [2019-11-16 00:00:51,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51" (1/1) ... [2019-11-16 00:00:51,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51" (1/1) ... [2019-11-16 00:00:51,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51" (1/1) ... [2019-11-16 00:00:51,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51" (1/1) ... [2019-11-16 00:00:51,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51" (1/1) ... [2019-11-16 00:00:51,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:00:51,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:00:51,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:00:51,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:00:51,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/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 [2019-11-16 00:00:51,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:00:51,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-16 00:00:51,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:00:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-16 00:00:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:00:51,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:00:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:00:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:00:52,259 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:00:52,259 INFO L284 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-16 00:00:52,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:00:52 BoogieIcfgContainer [2019-11-16 00:00:52,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:00:52,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:00:52,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:00:52,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:00:52,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:00:51" (1/3) ... [2019-11-16 00:00:52,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a85032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:00:52, skipping insertion in model container [2019-11-16 00:00:52,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:51" (2/3) ... [2019-11-16 00:00:52,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a85032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:00:52, skipping insertion in model container [2019-11-16 00:00:52,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:00:52" (3/3) ... [2019-11-16 00:00:52,274 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0971.c [2019-11-16 00:00:52,283 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:00:52,295 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:00:52,302 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:00:52,321 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:00:52,321 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:00:52,321 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:00:52,321 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:00:52,321 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:00:52,322 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:00:52,322 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:00:52,322 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:00:52,336 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-16 00:00:52,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:00:52,342 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:00:52,343 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:00:52,345 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:00:52,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:00:52,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1032073611, now seen corresponding path program 1 times [2019-11-16 00:00:52,357 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:00:52,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785936068] [2019-11-16 00:00:52,358 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:00:52,358 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:00:52,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:00:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:00:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:00:52,467 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785936068] [2019-11-16 00:00:52,467 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:00:52,467 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:00:52,468 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363137373] [2019-11-16 00:00:52,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:00:52,471 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:00:52,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:00:52,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:00:52,482 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-16 00:00:52,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:00:52,498 INFO L93 Difference]: Finished difference Result 82 states and 136 transitions. [2019-11-16 00:00:52,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:00:52,500 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-16 00:00:52,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:00:52,510 INFO L225 Difference]: With dead ends: 82 [2019-11-16 00:00:52,510 INFO L226 Difference]: Without dead ends: 39 [2019-11-16 00:00:52,513 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 [2019-11-16 00:00:52,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-16 00:00:52,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-16 00:00:52,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-16 00:00:52,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-16 00:00:52,547 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 10 [2019-11-16 00:00:52,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:00:52,547 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-16 00:00:52,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:00:52,547 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-16 00:00:52,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-16 00:00:52,548 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:00:52,548 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:00:52,548 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:00:52,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:00:52,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1303233586, now seen corresponding path program 1 times [2019-11-16 00:00:52,549 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:00:52,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065435584] [2019-11-16 00:00:52,549 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:00:52,550 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:00:52,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:00:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:00:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:00:52,668 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:00:52,668 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:00:52,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:00:52 BoogieIcfgContainer [2019-11-16 00:00:52,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:00:52,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:00:52,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:00:52,705 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:00:52,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:00:52" (3/4) ... [2019-11-16 00:00:52,708 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:00:52,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:00:52,710 INFO L168 Benchmark]: Toolchain (without parser) took 1451.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -96.6 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:00:52,711 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:00:52,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:00:52,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:00:52,713 INFO L168 Benchmark]: Boogie Preprocessor took 37.51 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. [2019-11-16 00:00:52,713 INFO L168 Benchmark]: RCFGBuilder took 537.50 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: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:00:52,714 INFO L168 Benchmark]: TraceAbstraction took 442.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:00:52,714 INFO L168 Benchmark]: Witness Printer took 3.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:00:52,717 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 380.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.51 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 537.50 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: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 442.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.60 ms. Allocated memory is still 1.2 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: 175]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 161, overapproximation of bitwiseOr at line 132, overapproximation of someBinaryArithmeticDOUBLEoperation at line 133. Possible FailurePath: [L17-L26] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L28] static const double zero = 0.0; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L116] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L170] double x = 0.0 / 0.0; [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L131] COND TRUE hx < 0x00100000 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L132] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L133] return -two54_log10 / zero_log10; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L171] double res = __ieee754_log10(x); [L161] return x != x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L174] COND TRUE !isnan_double(res) [L175] __VERIFIER_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2019-11-16 00:00:54,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:00:54,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:00:54,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:00:54,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:00:54,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:00:54,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:00:54,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:00:54,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:00:54,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:00:54,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:00:54,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:00:54,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:00:54,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:00:54,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:00:54,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:00:54,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:00:54,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:00:54,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:00:54,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:00:54,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:00:54,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:00:54,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:00:54,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:00:54,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:00:54,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:00:54,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:00:54,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:00:54,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:00:54,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:00:54,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:00:54,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:00:54,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:00:54,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:00:54,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:00:54,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:00:54,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:00:54,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:00:54,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:00:54,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:00:54,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:00:54,970 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:00:54,984 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:00:54,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:00:54,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:00:54,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:00:54,993 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:00:54,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:00:54,993 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:00:54,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:00:54,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:00:54,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:00:54,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:00:54,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:00:54,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:00:54,994 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:00:54,995 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:00:54,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:00:54,995 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:00:54,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:00:54,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:00:54,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:00:54,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:00:54,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:00:54,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:00:54,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:00:54,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:00:54,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:00:54,996 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:00:54,996 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:00:54,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:00:54,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:00:54,997 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_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/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 -> 1aaf670562012dae9985b4d351583e88df305330 [2019-11-16 00:00:55,028 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:00:55,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:00:55,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:00:55,054 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:00:55,054 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:00:55,055 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2019-11-16 00:00:55,108 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/data/0ef533f71/7c0f3828330e41e489ff8def068c52f6/FLAG33fbf2f92 [2019-11-16 00:00:55,533 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:00:55,538 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2019-11-16 00:00:55,549 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/data/0ef533f71/7c0f3828330e41e489ff8def068c52f6/FLAG33fbf2f92 [2019-11-16 00:00:55,568 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/data/0ef533f71/7c0f3828330e41e489ff8def068c52f6 [2019-11-16 00:00:55,572 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:00:55,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:00:55,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:00:55,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:00:55,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:00:55,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:00:55" (1/1) ... [2019-11-16 00:00:55,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a9cad2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:55, skipping insertion in model container [2019-11-16 00:00:55,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:00:55" (1/1) ... [2019-11-16 00:00:55,591 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:00:55,626 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:00:55,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:00:55,873 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:00:55,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:00:56,018 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:00:56,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:56 WrapperNode [2019-11-16 00:00:56,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:00:56,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:00:56,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:00:56,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:00:56,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:56" (1/1) ... [2019-11-16 00:00:56,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:56" (1/1) ... [2019-11-16 00:00:56,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:00:56,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:00:56,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:00:56,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:00:56,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:56" (1/1) ... [2019-11-16 00:00:56,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:56" (1/1) ... [2019-11-16 00:00:56,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:56" (1/1) ... [2019-11-16 00:00:56,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:56" (1/1) ... [2019-11-16 00:00:56,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:56" (1/1) ... [2019-11-16 00:00:56,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:56" (1/1) ... [2019-11-16 00:00:56,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:56" (1/1) ... [2019-11-16 00:00:56,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:00:56,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:00:56,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:00:56,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:00:56,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/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 [2019-11-16 00:00:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-16 00:00:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-16 00:00:56,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:00:56,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-16 00:00:56,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:00:56,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:00:56,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-16 00:00:56,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:01:24,327 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:01:24,327 INFO L284 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-16 00:01:24,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:24 BoogieIcfgContainer [2019-11-16 00:01:24,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:01:24,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:01:24,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:01:24,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:01:24,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:00:55" (1/3) ... [2019-11-16 00:01:24,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae572e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:24, skipping insertion in model container [2019-11-16 00:01:24,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:00:56" (2/3) ... [2019-11-16 00:01:24,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae572e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:24, skipping insertion in model container [2019-11-16 00:01:24,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:24" (3/3) ... [2019-11-16 00:01:24,335 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0971.c [2019-11-16 00:01:24,343 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:01:24,350 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:01:24,360 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:01:24,380 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:01:24,380 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:01:24,381 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:01:24,381 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:01:24,381 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:01:24,381 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:01:24,381 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:01:24,381 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:01:24,392 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-16 00:01:24,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:01:24,397 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:24,398 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:01:24,399 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:24,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:24,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1032073611, now seen corresponding path program 1 times [2019-11-16 00:01:24,411 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:01:24,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420788844] [2019-11-16 00:01:24,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/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 [2019-11-16 00:01:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:25,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-16 00:01:25,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:01:25,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:25,297 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:01:25,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:25,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420788844] [2019-11-16 00:01:25,302 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:25,302 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-16 00:01:25,303 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80282615] [2019-11-16 00:01:25,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:01:25,307 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:01:25,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:01:25,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:01:25,322 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-16 00:01:25,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:25,342 INFO L93 Difference]: Finished difference Result 82 states and 136 transitions. [2019-11-16 00:01:25,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:01:25,343 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-16 00:01:25,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:25,354 INFO L225 Difference]: With dead ends: 82 [2019-11-16 00:01:25,354 INFO L226 Difference]: Without dead ends: 39 [2019-11-16 00:01:25,357 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 [2019-11-16 00:01:25,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-16 00:01:25,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-16 00:01:25,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-16 00:01:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-16 00:01:25,392 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 10 [2019-11-16 00:01:25,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:25,392 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-16 00:01:25,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:01:25,393 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-16 00:01:25,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-16 00:01:25,393 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:25,394 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:01:25,610 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:01:25,610 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:25,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:25,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1303233586, now seen corresponding path program 1 times [2019-11-16 00:01:25,612 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:01:25,612 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111257270] [2019-11-16 00:01:25,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/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 [2019-11-16 00:01:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:26,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-16 00:01:26,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:01:26,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:26,566 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:01:26,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:26,633 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111257270] [2019-11-16 00:01:26,633 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:26,633 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-16 00:01:26,633 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487862724] [2019-11-16 00:01:26,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-16 00:01:26,635 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:01:26,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-16 00:01:26,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:01:26,636 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 6 states. [2019-11-16 00:01:29,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:29,181 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2019-11-16 00:01:29,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:01:29,182 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-16 00:01:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:29,183 INFO L225 Difference]: With dead ends: 49 [2019-11-16 00:01:29,183 INFO L226 Difference]: Without dead ends: 44 [2019-11-16 00:01:29,184 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-11-16 00:01:29,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-16 00:01:29,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2019-11-16 00:01:29,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-16 00:01:29,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2019-11-16 00:01:29,193 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 11 [2019-11-16 00:01:29,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:29,193 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2019-11-16 00:01:29,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-16 00:01:29,193 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2019-11-16 00:01:29,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-16 00:01:29,194 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:29,194 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:01:29,409 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-16 00:01:29,410 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:29,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:29,410 INFO L82 PathProgramCache]: Analyzing trace with hash -593045937, now seen corresponding path program 1 times [2019-11-16 00:01:29,411 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:01:29,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402119267] [2019-11-16 00:01:29,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/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 [2019-11-16 00:01:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:29,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-16 00:01:29,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:01:29,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:29,615 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:01:29,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:29,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402119267] [2019-11-16 00:01:29,973 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:29,973 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-16 00:01:29,974 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070423101] [2019-11-16 00:01:29,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:01:29,974 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:01:29,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:01:29,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:01:29,975 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand 8 states. [2019-11-16 00:01:35,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:35,206 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2019-11-16 00:01:35,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:01:35,208 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-16 00:01:35,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:35,209 INFO L225 Difference]: With dead ends: 44 [2019-11-16 00:01:35,209 INFO L226 Difference]: Without dead ends: 39 [2019-11-16 00:01:35,210 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-16 00:01:35,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-16 00:01:35,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-16 00:01:35,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-16 00:01:35,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2019-11-16 00:01:35,217 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 11 [2019-11-16 00:01:35,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:35,217 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2019-11-16 00:01:35,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:01:35,217 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2019-11-16 00:01:35,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-16 00:01:35,218 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:35,218 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] [2019-11-16 00:01:35,419 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-16 00:01:35,419 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:35,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:35,419 INFO L82 PathProgramCache]: Analyzing trace with hash -197853759, now seen corresponding path program 1 times [2019-11-16 00:01:35,420 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:01:35,420 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133235849] [2019-11-16 00:01:35,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/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 [2019-11-16 00:01:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:36,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-16 00:01:36,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:01:36,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:36,596 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:01:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:40,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133235849] [2019-11-16 00:01:40,695 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:40,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-16 00:01:40,695 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090582275] [2019-11-16 00:01:40,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:01:40,696 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:01:40,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:01:40,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2019-11-16 00:01:40,696 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 8 states. [2019-11-16 00:01:41,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:41,531 INFO L93 Difference]: Finished difference Result 68 states and 89 transitions. [2019-11-16 00:01:41,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-16 00:01:41,532 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-11-16 00:01:41,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:41,537 INFO L225 Difference]: With dead ends: 68 [2019-11-16 00:01:41,537 INFO L226 Difference]: Without dead ends: 39 [2019-11-16 00:01:41,538 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=34, Invalid=54, Unknown=2, NotChecked=0, Total=90 [2019-11-16 00:01:41,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-16 00:01:41,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-16 00:01:41,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-16 00:01:41,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2019-11-16 00:01:41,556 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 20 [2019-11-16 00:01:41,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:41,556 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2019-11-16 00:01:41,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:01:41,557 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2019-11-16 00:01:41,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-16 00:01:41,558 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:41,559 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, 1, 1] [2019-11-16 00:01:41,782 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-16 00:01:41,782 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:41,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:41,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1415968622, now seen corresponding path program 1 times [2019-11-16 00:01:41,783 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:01:41,783 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823634089] [2019-11-16 00:01:41,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/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 [2019-11-16 00:01:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:43,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-16 00:01:43,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:01:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:43,140 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:01:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:43,209 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823634089] [2019-11-16 00:01:43,209 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:43,210 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-16 00:01:43,210 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125436012] [2019-11-16 00:01:43,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:01:43,210 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:01:43,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:01:43,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:01:43,211 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand 8 states. [2019-11-16 00:01:43,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:43,274 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2019-11-16 00:01:43,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-16 00:01:43,276 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2019-11-16 00:01:43,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:43,276 INFO L225 Difference]: With dead ends: 39 [2019-11-16 00:01:43,276 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:01:43,277 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-16 00:01:43,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:01:43,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:01:43,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:01:43,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:01:43,278 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-11-16 00:01:43,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:43,278 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:01:43,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:01:43,278 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:01:43,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:01:43,482 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-16 00:01:43,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-16 00:01:43,716 INFO L439 ceAbstractionStarter]: At program point L35-2(lines 35 40) the Hoare annotation is: false [2019-11-16 00:01:43,717 INFO L443 ceAbstractionStarter]: For program point L35-3(lines 35 40) no Hoare annotation was computed. [2019-11-16 00:01:43,717 INFO L443 ceAbstractionStarter]: For program point L44(lines 44 45) no Hoare annotation was computed. [2019-11-16 00:01:43,717 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 85) no Hoare annotation was computed. [2019-11-16 00:01:43,717 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-16 00:01:43,717 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-16 00:01:43,717 INFO L443 ceAbstractionStarter]: For program point L61-1(lines 61 66) no Hoare annotation was computed. [2019-11-16 00:01:43,717 INFO L439 ceAbstractionStarter]: At program point L61-2(lines 61 66) the Hoare annotation is: false [2019-11-16 00:01:43,717 INFO L443 ceAbstractionStarter]: For program point L61-3(lines 61 66) no Hoare annotation was computed. [2019-11-16 00:01:43,717 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 77) no Hoare annotation was computed. [2019-11-16 00:01:43,718 INFO L439 ceAbstractionStarter]: At program point L161(line 161) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (forall ((ULTIMATE.start___ieee754_log10_~lx~1 (_ BitVec 32))) (not (= (_ bv0 32) (bvor (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10_~hx~1) ULTIMATE.start___ieee754_log10_~lx~1)))) (= |ULTIMATE.start___ieee754_log10_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start___ieee754_log10_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|))) [2019-11-16 00:01:43,718 INFO L443 ceAbstractionStarter]: For program point L79(lines 79 84) no Hoare annotation was computed. [2019-11-16 00:01:43,718 INFO L443 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2019-11-16 00:01:43,718 INFO L443 ceAbstractionStarter]: For program point L104(lines 104 107) no Hoare annotation was computed. [2019-11-16 00:01:43,718 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 76) no Hoare annotation was computed. [2019-11-16 00:01:43,718 INFO L443 ceAbstractionStarter]: For program point L96(lines 96 108) no Hoare annotation was computed. [2019-11-16 00:01:43,718 INFO L446 ceAbstractionStarter]: At program point L179(lines 163 180) the Hoare annotation is: true [2019-11-16 00:01:43,719 INFO L443 ceAbstractionStarter]: For program point L138-1(lines 138 142) no Hoare annotation was computed. [2019-11-16 00:01:43,719 INFO L439 ceAbstractionStarter]: At program point L138-2(lines 138 142) the Hoare annotation is: false [2019-11-16 00:01:43,719 INFO L443 ceAbstractionStarter]: For program point L131(lines 131 143) no Hoare annotation was computed. [2019-11-16 00:01:43,719 INFO L443 ceAbstractionStarter]: For program point L131-1(lines 118 158) no Hoare annotation was computed. [2019-11-16 00:01:43,719 INFO L443 ceAbstractionStarter]: For program point L98(lines 98 102) no Hoare annotation was computed. [2019-11-16 00:01:43,719 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-16 00:01:43,719 INFO L443 ceAbstractionStarter]: For program point L123-1(lines 123 128) no Hoare annotation was computed. [2019-11-16 00:01:43,719 INFO L439 ceAbstractionStarter]: At program point L123-2(lines 123 128) the Hoare annotation is: (= ULTIMATE.start___ieee754_log10_~x (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2019-11-16 00:01:43,720 INFO L443 ceAbstractionStarter]: For program point L123-3(lines 123 128) no Hoare annotation was computed. [2019-11-16 00:01:43,720 INFO L439 ceAbstractionStarter]: At program point L107(lines 30 109) the Hoare annotation is: false [2019-11-16 00:01:43,720 INFO L443 ceAbstractionStarter]: For program point L132(lines 132 133) no Hoare annotation was computed. [2019-11-16 00:01:43,720 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-16 00:01:43,720 INFO L439 ceAbstractionStarter]: At program point L157(lines 118 158) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (forall ((ULTIMATE.start___ieee754_log10_~lx~1 (_ BitVec 32))) (not (= (_ bv0 32) (bvor (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10_~hx~1) ULTIMATE.start___ieee754_log10_~lx~1)))) (= |ULTIMATE.start___ieee754_log10_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start___ieee754_log10_~x .cse0))) [2019-11-16 00:01:43,720 INFO L443 ceAbstractionStarter]: For program point L50-1(lines 50 54) no Hoare annotation was computed. [2019-11-16 00:01:43,720 INFO L439 ceAbstractionStarter]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2019-11-16 00:01:43,721 INFO L443 ceAbstractionStarter]: For program point L174(lines 174 177) no Hoare annotation was computed. [2019-11-16 00:01:43,721 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2019-11-16 00:01:43,721 INFO L443 ceAbstractionStarter]: For program point L150-1(lines 150 155) no Hoare annotation was computed. [2019-11-16 00:01:43,721 INFO L439 ceAbstractionStarter]: At program point L150-2(lines 150 155) the Hoare annotation is: false [2019-11-16 00:01:43,721 INFO L443 ceAbstractionStarter]: For program point L150-3(lines 150 155) no Hoare annotation was computed. [2019-11-16 00:01:43,721 INFO L443 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-16 00:01:43,721 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 55) no Hoare annotation was computed. [2019-11-16 00:01:43,721 INFO L443 ceAbstractionStarter]: For program point L43-1(lines 30 109) no Hoare annotation was computed. [2019-11-16 00:01:43,722 INFO L443 ceAbstractionStarter]: For program point L134(lines 134 135) no Hoare annotation was computed. [2019-11-16 00:01:43,722 INFO L443 ceAbstractionStarter]: For program point L35-1(lines 35 40) no Hoare annotation was computed. [2019-11-16 00:01:43,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-16 00:01:43,732 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,732 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,732 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,732 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,735 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-16 00:01:43,735 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,735 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,735 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,736 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,736 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-16 00:01:43,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,738 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-16 00:01:43,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:01:43 BoogieIcfgContainer [2019-11-16 00:01:43,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:01:43,743 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:01:43,743 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:01:43,743 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:01:43,744 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:24" (3/4) ... [2019-11-16 00:01:43,747 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:01:43,760 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2019-11-16 00:01:43,761 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-16 00:01:43,787 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((forall ULTIMATE.start___ieee754_log10_~lx~1 : bv32 :: !(0bv32 == ~bvor32(~bvand32(2147483647bv32, hx), ULTIMATE.start___ieee754_log10_~lx~1))) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-16 00:01:43,788 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((forall ULTIMATE.start___ieee754_log10_~lx~1 : bv32 :: !(0bv32 == ~bvor32(~bvand32(2147483647bv32, hx), ULTIMATE.start___ieee754_log10_~lx~1))) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result [2019-11-16 00:01:43,837 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c6a3a5ea-e862-4268-b55d-3c1a5e94accb/bin/uautomizer/witness.graphml [2019-11-16 00:01:43,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:01:43,839 INFO L168 Benchmark]: Toolchain (without parser) took 48265.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 952.3 MB in the beginning and 891.1 MB in the end (delta: 61.3 MB). Peak memory consumption was 206.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:43,840 INFO L168 Benchmark]: CDTParser took 0.60 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. [2019-11-16 00:01:43,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:43,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:43,841 INFO L168 Benchmark]: Boogie Preprocessor took 44.23 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. [2019-11-16 00:01:43,841 INFO L168 Benchmark]: RCFGBuilder took 28203.11 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:43,842 INFO L168 Benchmark]: TraceAbstraction took 19413.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.7 MB in the end (delta: 194.0 MB). Peak memory consumption was 194.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:43,842 INFO L168 Benchmark]: Witness Printer took 94.97 ms. Allocated memory is still 1.2 GB. Free memory was 897.7 MB in the beginning and 891.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:43,844 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 442.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.23 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. * RCFGBuilder took 28203.11 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19413.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.7 MB in the end (delta: 194.0 MB). Peak memory consumption was 194.0 MB. Max. memory is 11.5 GB. * Witness Printer took 94.97 ms. Allocated memory is still 1.2 GB. Free memory was 897.7 MB in the beginning and 891.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. 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[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: 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: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 161]: Loop Invariant [2019-11-16 00:01:43,853 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-16 00:01:43,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,855 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-16 00:01:43,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,856 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((forall ULTIMATE.start___ieee754_log10_~lx~1 : bv32 :: !(0bv32 == ~bvor32(~bvand32(2147483647bv32, hx), ULTIMATE.start___ieee754_log10_~lx~1))) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant [2019-11-16 00:01:43,856 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-16 00:01:43,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,858 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10_~lx~1,QUANTIFIED] [2019-11-16 00:01:43,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,859 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,859 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((forall ULTIMATE.start___ieee754_log10_~lx~1 : bv32 :: !(0bv32 == ~bvor32(~bvand32(2147483647bv32, hx), ULTIMATE.start___ieee754_log10_~lx~1))) && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant [2019-11-16 00:01:43,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-16 00:01:43,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 19.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 187 SDtfs, 138 SDslu, 529 SDs, 0 SdLazy, 107 SolverSat, 18 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 118 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 72 HoareAnnotationTreeSize, 10 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 82 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 142 ConstructedInterpolants, 20 QuantifiedInterpolants, 9924 SizeOfPredicates, 24 NumberOfNonLiveVariables, 339 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...