./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1011a.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_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1011a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/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 887f0640b1b5afa2d39789f5b16e950cef616033 ................................................................................................................................................................................................................................................................................ 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_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1011a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/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 887f0640b1b5afa2d39789f5b16e950cef616033 ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:20:52,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:20:52,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:20:52,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:20:52,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:20:52,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:20:52,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:20:52,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:20:52,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:20:52,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:20:52,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:20:52,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:20:52,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:20:52,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:20:52,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:20:52,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:20:52,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:20:52,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:20:52,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:20:52,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:20:52,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:20:52,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:20:52,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:20:52,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:20:52,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:20:52,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:20:52,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:20:52,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:20:52,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:20:52,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:20:52,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:20:52,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:20:52,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:20:52,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:20:52,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:20:52,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:20:52,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:20:52,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:20:52,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:20:52,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:20:52,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:20:52,319 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:20:52,343 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:20:52,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:20:52,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:20:52,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:20:52,355 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:20:52,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:20:52,356 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:20:52,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:20:52,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:20:52,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:20:52,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:20:52,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:20:52,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:20:52,357 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:20:52,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:20:52,358 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:20:52,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:20:52,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:20:52,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:20:52,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:20:52,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:20:52,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:20:52,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:20:52,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:20:52,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:20:52,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:20:52,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:20:52,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:20:52,362 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_b7327a68-2eff-46c7-9444-330f1d4d5a54/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 -> 887f0640b1b5afa2d39789f5b16e950cef616033 [2019-11-15 20:20:52,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:20:52,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:20:52,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:20:52,416 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:20:52,416 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:20:52,417 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1011a.c [2019-11-15 20:20:52,485 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/data/d1badc5bf/923e2c779c4a4355b076d725b4e85dce/FLAGe66918654 [2019-11-15 20:20:52,883 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:20:52,883 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/sv-benchmarks/c/float-newlib/float_req_bl_1011a.c [2019-11-15 20:20:52,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/data/d1badc5bf/923e2c779c4a4355b076d725b4e85dce/FLAGe66918654 [2019-11-15 20:20:52,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/data/d1badc5bf/923e2c779c4a4355b076d725b4e85dce [2019-11-15 20:20:52,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:20:52,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:20:52,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:20:52,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:20:52,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:20:52,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:20:52" (1/1) ... [2019-11-15 20:20:52,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d75e6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:52, skipping insertion in model container [2019-11-15 20:20:52,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:20:52" (1/1) ... [2019-11-15 20:20:52,929 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:20:52,949 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:20:53,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:20:53,261 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:20:53,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:20:53,303 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:20:53,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:53 WrapperNode [2019-11-15 20:20:53,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:20:53,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:20:53,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:20:53,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:20:53,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:53" (1/1) ... [2019-11-15 20:20:53,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:53" (1/1) ... [2019-11-15 20:20:53,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:20:53,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:20:53,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:20:53,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:20:53,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:53" (1/1) ... [2019-11-15 20:20:53,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:53" (1/1) ... [2019-11-15 20:20:53,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:53" (1/1) ... [2019-11-15 20:20:53,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:53" (1/1) ... [2019-11-15 20:20:53,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:53" (1/1) ... [2019-11-15 20:20:53,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:53" (1/1) ... [2019-11-15 20:20:53,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:53" (1/1) ... [2019-11-15 20:20:53,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:20:53,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:20:53,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:20:53,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:20:53,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:20:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:20:53,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 20:20:53,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:20:53,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 20:20:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:20:53,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:20:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:20:53,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:20:53,667 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:20:53,667 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 20:20:53,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:20:53 BoogieIcfgContainer [2019-11-15 20:20:53,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:20:53,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:20:53,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:20:53,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:20:53,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:20:52" (1/3) ... [2019-11-15 20:20:53,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb3bd07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:20:53, skipping insertion in model container [2019-11-15 20:20:53,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:53" (2/3) ... [2019-11-15 20:20:53,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb3bd07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:20:53, skipping insertion in model container [2019-11-15 20:20:53,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:20:53" (3/3) ... [2019-11-15 20:20:53,688 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a.c [2019-11-15 20:20:53,696 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:20:53,714 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:20:53,723 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:20:53,765 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:20:53,766 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:20:53,766 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:20:53,766 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:20:53,766 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:20:53,767 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:20:53,767 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:20:53,767 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:20:53,780 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-15 20:20:53,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 20:20:53,785 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:20:53,786 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:20:53,787 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:20:53,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:20:53,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1641221055, now seen corresponding path program 1 times [2019-11-15 20:20:53,799 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:20:53,800 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514925867] [2019-11-15 20:20:53,800 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:20:53,800 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:20:53,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:20:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:20:53,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:20:53,891 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514925867] [2019-11-15 20:20:53,891 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:20:53,892 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:20:53,892 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118898930] [2019-11-15 20:20:53,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:20:53,897 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:20:53,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:20:53,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:20:53,912 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-11-15 20:20:53,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:20:53,928 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2019-11-15 20:20:53,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:20:53,930 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-15 20:20:53,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:20:53,938 INFO L225 Difference]: With dead ends: 36 [2019-11-15 20:20:53,938 INFO L226 Difference]: Without dead ends: 16 [2019-11-15 20:20:53,941 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:20:53,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-15 20:20:53,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-15 20:20:53,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-15 20:20:53,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-15 20:20:53,971 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2019-11-15 20:20:53,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:20:53,971 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-15 20:20:53,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:20:53,971 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-15 20:20:53,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 20:20:53,972 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:20:53,972 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:20:53,972 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:20:53,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:20:53,973 INFO L82 PathProgramCache]: Analyzing trace with hash 558264036, now seen corresponding path program 1 times [2019-11-15 20:20:53,973 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:20:53,973 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411294518] [2019-11-15 20:20:53,973 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:20:53,973 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:20:53,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:20:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:20:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:20:54,062 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:20:54,063 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 20:20:54,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:20:54 BoogieIcfgContainer [2019-11-15 20:20:54,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:20:54,100 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:20:54,100 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:20:54,101 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:20:54,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:20:53" (3/4) ... [2019-11-15 20:20:54,105 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:20:54,105 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:20:54,108 INFO L168 Benchmark]: Toolchain (without parser) took 1196.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -133.0 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:20:54,108 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:20:54,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:20:54,111 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:20:54,111 INFO L168 Benchmark]: Boogie Preprocessor took 27.04 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:20:54,112 INFO L168 Benchmark]: RCFGBuilder took 296.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:20:54,113 INFO L168 Benchmark]: TraceAbstraction took 429.91 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:20:54,114 INFO L168 Benchmark]: Witness Printer took 5.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:20:54,121 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 391.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.04 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 296.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 429.91 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 50]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L45] float x = 0.0f; [L13] __uint32_t ix; [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type sf_u; [L21] sf_u.word = (ix & 0x7fffffff) [L22] EXPR sf_u.value [L22] (x) = sf_u.value [L24] return x; [L46] float res = fabs_float(x); [L49] EXPR res == 0.0f && __signbit_float(res) == 0 [L49] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L50] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 19 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=19occurred 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 [2019-11-15 20:20:56,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:20:56,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:20:56,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:20:56,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:20:56,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:20:56,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:20:56,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:20:56,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:20:56,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:20:56,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:20:56,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:20:56,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:20:56,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:20:56,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:20:56,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:20:56,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:20:56,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:20:56,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:20:56,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:20:56,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:20:56,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:20:56,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:20:56,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:20:56,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:20:56,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:20:56,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:20:56,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:20:56,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:20:56,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:20:56,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:20:56,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:20:56,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:20:56,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:20:56,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:20:56,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:20:56,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:20:56,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:20:56,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:20:56,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:20:56,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:20:56,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:20:56,300 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:20:56,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:20:56,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:20:56,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:20:56,302 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:20:56,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:20:56,302 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:20:56,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:20:56,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:20:56,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:20:56,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:20:56,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:20:56,303 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:20:56,304 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:20:56,304 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:20:56,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:20:56,304 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:20:56,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:20:56,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:20:56,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:20:56,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:20:56,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:20:56,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:20:56,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:20:56,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:20:56,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:20:56,307 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:20:56,307 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:20:56,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:20:56,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:20:56,308 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_b7327a68-2eff-46c7-9444-330f1d4d5a54/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 -> 887f0640b1b5afa2d39789f5b16e950cef616033 [2019-11-15 20:20:56,347 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:20:56,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:20:56,363 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:20:56,365 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:20:56,365 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:20:56,366 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1011a.c [2019-11-15 20:20:56,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/data/998c3ac12/9cfa721acde74cb98a33b2db62c40296/FLAG479a24832 [2019-11-15 20:20:56,873 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:20:56,874 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/sv-benchmarks/c/float-newlib/float_req_bl_1011a.c [2019-11-15 20:20:56,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/data/998c3ac12/9cfa721acde74cb98a33b2db62c40296/FLAG479a24832 [2019-11-15 20:20:57,297 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/data/998c3ac12/9cfa721acde74cb98a33b2db62c40296 [2019-11-15 20:20:57,300 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:20:57,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:20:57,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:20:57,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:20:57,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:20:57,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:20:57" (1/1) ... [2019-11-15 20:20:57,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfabd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57, skipping insertion in model container [2019-11-15 20:20:57,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:20:57" (1/1) ... [2019-11-15 20:20:57,317 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:20:57,334 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:20:57,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:20:57,505 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:20:57,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:20:57,549 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:20:57,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57 WrapperNode [2019-11-15 20:20:57,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:20:57,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:20:57,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:20:57,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:20:57,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57" (1/1) ... [2019-11-15 20:20:57,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57" (1/1) ... [2019-11-15 20:20:57,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:20:57,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:20:57,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:20:57,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:20:57,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57" (1/1) ... [2019-11-15 20:20:57,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57" (1/1) ... [2019-11-15 20:20:57,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57" (1/1) ... [2019-11-15 20:20:57,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57" (1/1) ... [2019-11-15 20:20:57,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57" (1/1) ... [2019-11-15 20:20:57,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57" (1/1) ... [2019-11-15 20:20:57,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57" (1/1) ... [2019-11-15 20:20:57,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:20:57,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:20:57,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:20:57,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:20:57,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:20:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:20:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 20:20:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 20:20:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:20:57,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:20:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 20:20:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 20:20:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:20:58,098 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:20:58,098 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-15 20:20:58,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:20:58 BoogieIcfgContainer [2019-11-15 20:20:58,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:20:58,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:20:58,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:20:58,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:20:58,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:20:57" (1/3) ... [2019-11-15 20:20:58,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec7870e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:20:58, skipping insertion in model container [2019-11-15 20:20:58,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:20:57" (2/3) ... [2019-11-15 20:20:58,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec7870e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:20:58, skipping insertion in model container [2019-11-15 20:20:58,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:20:58" (3/3) ... [2019-11-15 20:20:58,106 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a.c [2019-11-15 20:20:58,118 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:20:58,123 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 20:20:58,132 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 20:20:58,153 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:20:58,153 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:20:58,154 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:20:58,163 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:20:58,163 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:20:58,163 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:20:58,163 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:20:58,163 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:20:58,176 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-15 20:20:58,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 20:20:58,182 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:20:58,183 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:20:58,184 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:20:58,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:20:58,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1641221055, now seen corresponding path program 1 times [2019-11-15 20:20:58,203 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:20:58,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297913905] [2019-11-15 20:20:58,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 20:20:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:20:58,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 20:20:58,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:20:58,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:20:58,281 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:20:58,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:20:58,285 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297913905] [2019-11-15 20:20:58,286 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:20:58,286 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 20:20:58,286 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856773972] [2019-11-15 20:20:58,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:20:58,290 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:20:58,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:20:58,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:20:58,303 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-11-15 20:20:58,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:20:58,320 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2019-11-15 20:20:58,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:20:58,321 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-15 20:20:58,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:20:58,330 INFO L225 Difference]: With dead ends: 36 [2019-11-15 20:20:58,330 INFO L226 Difference]: Without dead ends: 16 [2019-11-15 20:20:58,333 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:20:58,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-15 20:20:58,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-15 20:20:58,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-15 20:20:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-15 20:20:58,363 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2019-11-15 20:20:58,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:20:58,364 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-15 20:20:58,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:20:58,364 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-15 20:20:58,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 20:20:58,365 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:20:58,365 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:20:58,578 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 20:20:58,578 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:20:58,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:20:58,579 INFO L82 PathProgramCache]: Analyzing trace with hash 558264036, now seen corresponding path program 1 times [2019-11-15 20:20:58,579 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:20:58,579 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570227044] [2019-11-15 20:20:58,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 20:20:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:20:58,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 20:20:58,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:20:58,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:20:58,750 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:20:58,753 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:20:58,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:20:58,877 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570227044] [2019-11-15 20:20:58,877 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:20:58,877 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-11-15 20:20:58,877 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821553499] [2019-11-15 20:20:58,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 20:20:58,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:20:58,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 20:20:58,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:20:58,883 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 9 states. [2019-11-15 20:20:59,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:20:59,009 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-11-15 20:20:59,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:20:59,010 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2019-11-15 20:20:59,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:20:59,010 INFO L225 Difference]: With dead ends: 19 [2019-11-15 20:20:59,011 INFO L226 Difference]: Without dead ends: 16 [2019-11-15 20:20:59,012 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2019-11-15 20:20:59,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-15 20:20:59,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-15 20:20:59,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-15 20:20:59,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2019-11-15 20:20:59,016 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2019-11-15 20:20:59,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:20:59,016 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2019-11-15 20:20:59,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 20:20:59,017 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-11-15 20:20:59,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 20:20:59,019 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:20:59,019 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:20:59,227 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 20:20:59,228 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:20:59,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:20:59,229 INFO L82 PathProgramCache]: Analyzing trace with hash -2014349959, now seen corresponding path program 1 times [2019-11-15 20:20:59,230 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:20:59,231 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244747744] [2019-11-15 20:20:59,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 20:20:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:20:59,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-15 20:20:59,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:20:59,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:20:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:20:59,498 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:20:59,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:20:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:20:59,874 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244747744] [2019-11-15 20:20:59,874 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:20:59,875 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 17 [2019-11-15 20:20:59,875 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261366014] [2019-11-15 20:20:59,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-15 20:20:59,876 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:20:59,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-15 20:20:59,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-11-15 20:20:59,877 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 17 states. [2019-11-15 20:21:00,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:21:00,216 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-11-15 20:21:00,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 20:21:00,216 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 15 [2019-11-15 20:21:00,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:21:00,217 INFO L225 Difference]: With dead ends: 16 [2019-11-15 20:21:00,217 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:21:00,218 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2019-11-15 20:21:00,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:21:00,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:21:00,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:21:00,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:21:00,219 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-15 20:21:00,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:21:00,219 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:21:00,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-15 20:21:00,219 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:21:00,220 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:21:00,428 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 20:21:00,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 20:21:00,549 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-11-15 20:21:00,550 INFO L443 ceAbstractionStarter]: For program point L19-1(lines 12 25) no Hoare annotation was computed. [2019-11-15 20:21:00,550 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 23) no Hoare annotation was computed. [2019-11-15 20:21:00,550 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 50) no Hoare annotation was computed. [2019-11-15 20:21:00,550 INFO L439 ceAbstractionStarter]: At program point L36(lines 27 37) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_fabs_float_#res|) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= (_ +zero 8 24) ULTIMATE.start_fabs_float_~x) |ULTIMATE.start_main_#t~short8| (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)))) [2019-11-15 20:21:00,550 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 20:21:00,551 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 20:21:00,551 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 20:21:00,551 INFO L439 ceAbstractionStarter]: At program point L24(lines 12 25) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_fabs_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_fabs_float_~x) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)))) [2019-11-15 20:21:00,551 INFO L443 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2019-11-15 20:21:00,551 INFO L443 ceAbstractionStarter]: For program point L49-2(lines 49 52) no Hoare annotation was computed. [2019-11-15 20:21:00,551 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 20:21:00,551 INFO L446 ceAbstractionStarter]: At program point L54(lines 39 55) the Hoare annotation is: true [2019-11-15 20:21:00,552 INFO L443 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2019-11-15 20:21:00,552 INFO L443 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2019-11-15 20:21:00,552 INFO L439 ceAbstractionStarter]: At program point L30-2(lines 30 34) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_fabs_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= (_ +zero 8 24) ULTIMATE.start_fabs_float_~x) |ULTIMATE.start_main_#t~short8| (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)))) [2019-11-15 20:21:00,552 INFO L443 ceAbstractionStarter]: For program point L30-3(lines 30 34) no Hoare annotation was computed. [2019-11-15 20:21:00,552 INFO L443 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2019-11-15 20:21:00,552 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= (_ +zero 8 24) ULTIMATE.start_fabs_float_~x) [2019-11-15 20:21:00,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:21:00 BoogieIcfgContainer [2019-11-15 20:21:00,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:21:00,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:21:00,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:21:00,569 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:21:00,571 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:20:58" (3/4) ... [2019-11-15 20:21:00,575 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 20:21:00,589 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 20:21:00,590 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 20:21:00,590 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 20:21:00,643 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b7327a68-2eff-46c7-9444-330f1d4d5a54/bin/uautomizer/witness.graphml [2019-11-15 20:21:00,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:21:00,645 INFO L168 Benchmark]: Toolchain (without parser) took 3344.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 948.3 MB in the beginning and 993.0 MB in the end (delta: -44.7 MB). Peak memory consumption was 116.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:21:00,646 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:21:00,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.39 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 937.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:21:00,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 937.6 MB in the beginning and 1.2 GB in the end (delta: -213.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:21:00,648 INFO L168 Benchmark]: Boogie Preprocessor took 59.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-11-15 20:21:00,648 INFO L168 Benchmark]: RCFGBuilder took 392.58 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:21:00,649 INFO L168 Benchmark]: TraceAbstraction took 2468.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.0 MB in the end (delta: 138.5 MB). Peak memory consumption was 138.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:21:00,649 INFO L168 Benchmark]: Witness Printer took 75.01 ms. Allocated memory is still 1.2 GB. Free memory is still 993.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:21:00,652 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.39 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 937.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 937.6 MB in the beginning and 1.2 GB in the end (delta: -213.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 392.58 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2468.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.0 MB in the end (delta: 138.5 MB). Peak memory consumption was 138.5 MB. Max. memory is 11.5 GB. * Witness Printer took 75.01 ms. Allocated memory is still 1.2 GB. Free memory is still 993.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: 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: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((~Pluszero~LONGDOUBLE() == \result && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 34 SDtfs, 94 SDslu, 42 SDs, 0 SdLazy, 58 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 78 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 8 QuantifiedInterpolants, 4540 SizeOfPredicates, 22 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...