./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c -s /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34004772e6a1e54917776a817538fd6c8fd28f94 ....................................................................................................................................................................................................................................................................................................................................... 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_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c -s /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34004772e6a1e54917776a817538fd6c8fd28f94 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:11:54,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:11:54,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:11:54,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:11:54,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:11:54,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:11:54,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:11:54,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:11:54,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:11:54,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:11:54,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:11:54,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:11:54,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:11:54,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:11:54,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:11:54,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:11:54,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:11:54,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:11:54,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:11:54,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:11:54,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:11:54,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:11:54,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:11:54,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:11:54,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:11:54,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:11:54,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:11:54,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:11:54,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:11:54,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:11:54,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:11:54,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:11:54,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:11:54,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:11:54,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:11:54,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:11:54,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:11:54,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:11:54,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:11:54,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:11:54,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:11:54,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:11:54,411 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:11:54,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:11:54,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:11:54,412 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:11:54,412 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:11:54,412 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:11:54,413 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:11:54,413 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:11:54,413 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:11:54,413 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:11:54,413 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:11:54,413 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:11:54,413 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:11:54,413 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:11:54,414 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:11:54,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:11:54,414 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:11:54,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:11:54,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:11:54,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:11:54,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:11:54,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:11:54,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:11:54,415 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:11:54,415 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:11:54,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:11:54,415 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:11:54,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:11:54,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:11:54,416 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:11:54,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:11:54,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:11:54,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:11:54,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:11:54,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:11:54,416 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:11:54,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:11:54,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:11:54,417 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:11:54,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:11:54,417 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan 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 -> Taipan 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 -> 34004772e6a1e54917776a817538fd6c8fd28f94 [2019-12-07 11:11:54,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:11:54,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:11:54,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:11:54,529 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:11:54,529 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:11:54,530 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2019-12-07 11:11:54,572 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/data/9830909cf/0f96e25df5ba44218c54facafdf3571d/FLAG250af6fd9 [2019-12-07 11:11:54,918 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:11:54,918 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2019-12-07 11:11:54,923 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/data/9830909cf/0f96e25df5ba44218c54facafdf3571d/FLAG250af6fd9 [2019-12-07 11:11:54,932 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/data/9830909cf/0f96e25df5ba44218c54facafdf3571d [2019-12-07 11:11:54,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:11:54,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:11:54,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:11:54,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:11:54,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:11:54,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:11:54" (1/1) ... [2019-12-07 11:11:54,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629311fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:54, skipping insertion in model container [2019-12-07 11:11:54,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:11:54" (1/1) ... [2019-12-07 11:11:54,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:11:54,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:11:55,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:11:55,120 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:11:55,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:11:55,160 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:11:55,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:55 WrapperNode [2019-12-07 11:11:55,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:11:55,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:11:55,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:11:55,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:11:55,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:55" (1/1) ... [2019-12-07 11:11:55,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:55" (1/1) ... [2019-12-07 11:11:55,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:11:55,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:11:55,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:11:55,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:11:55,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:55" (1/1) ... [2019-12-07 11:11:55,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:55" (1/1) ... [2019-12-07 11:11:55,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:55" (1/1) ... [2019-12-07 11:11:55,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:55" (1/1) ... [2019-12-07 11:11:55,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:55" (1/1) ... [2019-12-07 11:11:55,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:55" (1/1) ... [2019-12-07 11:11:55,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:55" (1/1) ... [2019-12-07 11:11:55,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:11:55,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:11:55,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:11:55,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:11:55,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/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 [2019-12-07 11:11:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:11:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 11:11:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 11:11:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 11:11:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:11:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:11:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:11:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 11:11:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:11:55,574 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:11:55,574 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-12-07 11:11:55,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:11:55 BoogieIcfgContainer [2019-12-07 11:11:55,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:11:55,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:11:55,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:11:55,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:11:55,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:11:54" (1/3) ... [2019-12-07 11:11:55,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cccea91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:11:55, skipping insertion in model container [2019-12-07 11:11:55,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:55" (2/3) ... [2019-12-07 11:11:55,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cccea91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:11:55, skipping insertion in model container [2019-12-07 11:11:55,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:11:55" (3/3) ... [2019-12-07 11:11:55,580 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2019-12-07 11:11:55,586 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:11:55,591 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:11:55,598 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:11:55,613 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:11:55,613 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:11:55,613 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:11:55,613 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:11:55,613 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:11:55,613 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:11:55,613 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:11:55,613 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:11:55,623 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-12-07 11:11:55,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:11:55,626 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:11:55,627 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:11:55,627 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:11:55,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:11:55,631 INFO L82 PathProgramCache]: Analyzing trace with hash -170597353, now seen corresponding path program 1 times [2019-12-07 11:11:55,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 11:11:55,636 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268454903] [2019-12-07 11:11:55,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:11:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:11:55,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:11:55,725 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268454903] [2019-12-07 11:11:55,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:11:55,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 11:11:55,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087125082] [2019-12-07 11:11:55,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:11:55,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 11:11:55,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:11:55,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:11:55,739 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-12-07 11:11:55,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:11:55,753 INFO L93 Difference]: Finished difference Result 71 states and 117 transitions. [2019-12-07 11:11:55,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:11:55,753 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 11:11:55,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:11:55,760 INFO L225 Difference]: With dead ends: 71 [2019-12-07 11:11:55,761 INFO L226 Difference]: Without dead ends: 34 [2019-12-07 11:11:55,763 INFO L630 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 [2019-12-07 11:11:55,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-07 11:11:55,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-07 11:11:55,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 11:11:55,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2019-12-07 11:11:55,785 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 11 [2019-12-07 11:11:55,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:11:55,786 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2019-12-07 11:11:55,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:11:55,786 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2019-12-07 11:11:55,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 11:11:55,786 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:11:55,786 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:11:55,786 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:11:55,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:11:55,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1427068651, now seen corresponding path program 1 times [2019-12-07 11:11:55,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 11:11:55,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063214271] [2019-12-07 11:11:55,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:11:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:11:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:11:55,914 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 11:11:55,914 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:11:55,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:11:55 BoogieIcfgContainer [2019-12-07 11:11:55,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:11:55,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:11:55,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:11:55,942 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:11:55,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:11:55" (3/4) ... [2019-12-07 11:11:55,945 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 11:11:55,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:11:55,946 INFO L168 Benchmark]: Toolchain (without parser) took 1011.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 943.5 MB in the beginning and 1.0 GB in the end (delta: -69.5 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:11:55,947 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:11:55,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:11:55,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:11:55,948 INFO L168 Benchmark]: Boogie Preprocessor took 26.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:11:55,948 INFO L168 Benchmark]: RCFGBuilder took 355.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:11:55,949 INFO L168 Benchmark]: TraceAbstraction took 365.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:11:55,949 INFO L168 Benchmark]: Witness Printer took 3.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:11:55,951 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 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 225.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 355.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 365.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 158]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 141, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of someBinaryArithmeticDOUBLEoperation at line 71, overapproximation of bitwiseAnd at line 140, overapproximation of someBinaryDOUBLEComparisonOperation at line 70. Possible FailurePath: [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L153] double x = 1.0 / 0.0; [L45] double y, hi, lo, c, t; [L46] __int32_t k = 0, xsb; [L47] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] ieee_double_shape_type gh_u; [L51] gh_u.value = (x) [L52] EXPR gh_u.parts.msw [L52] (hx) = gh_u.parts.msw [L54] xsb = (hx >> 31) & 1 [L55] hx &= 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L57] COND TRUE hx >= 0x40862E42 VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L58] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L70] COND TRUE x > o_threshold_exp [L71] return huge_exp * huge_exp; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L154] double res = __ieee754_exp(x); [L133] __int32_t hx, lx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L135] ieee_double_shape_type ew_u; [L136] ew_u.value = (x) [L137] EXPR ew_u.parts.msw [L137] (hx) = ew_u.parts.msw [L138] EXPR ew_u.parts.lsw [L138] (lx) = ew_u.parts.lsw [L140] hx &= 0x7fffffff [L141] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L142] hx = 0x7ff00000 - hx [L143] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L157] COND TRUE !isinf_double(x) [L158] __VERIFIER_error() VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 44 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=36occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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 0.1.25-f470102 [2019-12-07 11:11:57,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:11:57,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:11:57,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:11:57,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:11:57,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:11:57,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:11:57,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:11:57,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:11:57,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:11:57,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:11:57,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:11:57,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:11:57,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:11:57,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:11:57,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:11:57,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:11:57,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:11:57,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:11:57,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:11:57,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:11:57,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:11:57,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:11:57,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:11:57,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:11:57,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:11:57,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:11:57,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:11:57,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:11:57,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:11:57,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:11:57,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:11:57,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:11:57,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:11:57,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:11:57,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:11:57,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:11:57,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:11:57,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:11:57,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:11:57,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:11:57,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 11:11:57,304 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:11:57,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:11:57,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:11:57,304 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:11:57,305 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:11:57,305 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:11:57,305 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:11:57,305 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:11:57,305 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:11:57,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:11:57,306 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:11:57,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:11:57,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:11:57,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:11:57,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:11:57,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:11:57,307 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:11:57,307 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:11:57,307 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:11:57,307 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:11:57,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:11:57,307 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:11:57,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:11:57,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:11:57,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:11:57,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:11:57,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:11:57,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:11:57,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:11:57,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:11:57,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:11:57,308 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 11:11:57,309 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:11:57,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:11:57,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:11:57,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:11:57,309 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_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan 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 -> Taipan 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 -> 34004772e6a1e54917776a817538fd6c8fd28f94 [2019-12-07 11:11:57,511 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:11:57,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:11:57,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:11:57,524 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:11:57,524 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:11:57,524 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2019-12-07 11:11:57,565 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/data/5a3c1d4b2/f9e4184c5364409b9a5e534d6fe43ff8/FLAG3c30eb647 [2019-12-07 11:11:57,983 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:11:57,984 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2019-12-07 11:11:57,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/data/5a3c1d4b2/f9e4184c5364409b9a5e534d6fe43ff8/FLAG3c30eb647 [2019-12-07 11:11:58,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/data/5a3c1d4b2/f9e4184c5364409b9a5e534d6fe43ff8 [2019-12-07 11:11:58,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:11:58,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:11:58,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:11:58,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:11:58,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:11:58,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:11:58" (1/1) ... [2019-12-07 11:11:58,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d41f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58, skipping insertion in model container [2019-12-07 11:11:58,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:11:58" (1/1) ... [2019-12-07 11:11:58,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:11:58,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:11:58,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:11:58,517 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:11:58,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:11:58,598 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:11:58,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58 WrapperNode [2019-12-07 11:11:58,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:11:58,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:11:58,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:11:58,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:11:58,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58" (1/1) ... [2019-12-07 11:11:58,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58" (1/1) ... [2019-12-07 11:11:58,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:11:58,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:11:58,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:11:58,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:11:58,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58" (1/1) ... [2019-12-07 11:11:58,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58" (1/1) ... [2019-12-07 11:11:58,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58" (1/1) ... [2019-12-07 11:11:58,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58" (1/1) ... [2019-12-07 11:11:58,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58" (1/1) ... [2019-12-07 11:11:58,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58" (1/1) ... [2019-12-07 11:11:58,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58" (1/1) ... [2019-12-07 11:11:58,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:11:58,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:11:58,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:11:58,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:11:58,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/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 [2019-12-07 11:11:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 11:11:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 11:11:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:11:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-07 11:11:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 11:11:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:11:58,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:11:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 11:11:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:12:10,365 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:12:10,366 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-12-07 11:12:10,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:12:10 BoogieIcfgContainer [2019-12-07 11:12:10,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:12:10,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:12:10,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:12:10,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:12:10,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:11:58" (1/3) ... [2019-12-07 11:12:10,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd87f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:12:10, skipping insertion in model container [2019-12-07 11:12:10,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:11:58" (2/3) ... [2019-12-07 11:12:10,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd87f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:12:10, skipping insertion in model container [2019-12-07 11:12:10,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:12:10" (3/3) ... [2019-12-07 11:12:10,371 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2019-12-07 11:12:10,378 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:12:10,382 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:12:10,390 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:12:10,406 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:12:10,406 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:12:10,406 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:12:10,406 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:12:10,407 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:12:10,407 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:12:10,407 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:12:10,407 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:12:10,417 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2019-12-07 11:12:10,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 11:12:10,421 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:12:10,421 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:12:10,422 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:12:10,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:12:10,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1546239330, now seen corresponding path program 1 times [2019-12-07 11:12:10,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:12:10,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67107164] [2019-12-07 11:12:10,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/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 [2019-12-07 11:12:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:12:10,777 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:12:10,780 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:12:10,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:12:10,790 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:12:10,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:12:10,794 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67107164] [2019-12-07 11:12:10,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:12:10,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:12:10,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262806983] [2019-12-07 11:12:10,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:12:10,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:12:10,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:12:10,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:12:10,809 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2019-12-07 11:12:10,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:12:10,824 INFO L93 Difference]: Finished difference Result 84 states and 136 transitions. [2019-12-07 11:12:10,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:12:10,825 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-12-07 11:12:10,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:12:10,832 INFO L225 Difference]: With dead ends: 84 [2019-12-07 11:12:10,832 INFO L226 Difference]: Without dead ends: 40 [2019-12-07 11:12:10,834 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:12:10,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-12-07 11:12:10,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-12-07 11:12:10,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-12-07 11:12:10,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2019-12-07 11:12:10,859 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 13 [2019-12-07 11:12:10,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:12:10,859 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2019-12-07 11:12:10,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:12:10,859 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2019-12-07 11:12:10,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 11:12:10,860 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:12:10,860 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:12:11,061 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:12:11,061 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:12:11,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:12:11,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1188959094, now seen corresponding path program 1 times [2019-12-07 11:12:11,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:12:11,064 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639955030] [2019-12-07 11:12:11,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/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 [2019-12-07 11:12:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:12:11,456 INFO L264 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 11:12:11,458 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:12:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:12:11,564 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:12:11,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:12:11,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639955030] [2019-12-07 11:12:11,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:12:11,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2019-12-07 11:12:11,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736331982] [2019-12-07 11:12:11,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 11:12:11,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:12:11,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 11:12:11,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 11:12:11,638 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 7 states. [2019-12-07 11:12:11,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:12:11,777 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2019-12-07 11:12:11,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:12:11,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-12-07 11:12:11,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:12:11,779 INFO L225 Difference]: With dead ends: 48 [2019-12-07 11:12:11,779 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 11:12:11,780 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:12:11,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 11:12:11,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 11:12:11,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 11:12:11,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-12-07 11:12:11,784 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2019-12-07 11:12:11,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:12:11,784 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-12-07 11:12:11,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 11:12:11,784 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-12-07 11:12:11,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 11:12:11,785 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:12:11,785 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:12:11,986 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:12:11,987 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:12:11,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:12:11,987 INFO L82 PathProgramCache]: Analyzing trace with hash 968811170, now seen corresponding path program 1 times [2019-12-07 11:12:11,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:12:11,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168088257] [2019-12-07 11:12:11,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/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 [2019-12-07 11:12:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:12:12,350 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 11:12:12,353 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:12:12,462 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2019-12-07 11:12:12,472 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 11:12:12,475 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:12:12,476 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:12:12,500 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:12:12,500 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-12-07 11:12:12,501 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:49, output treesize:38 [2019-12-07 11:12:12,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:12:12,540 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:12:12,567 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2019-12-07 11:12:12,571 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 11:12:12,573 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:12:12,573 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:12:12,582 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:12:12,583 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 11:12:12,583 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2019-12-07 11:12:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:12:12,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168088257] [2019-12-07 11:12:12,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:12:12,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 11:12:12,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968389511] [2019-12-07 11:12:12,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 11:12:12,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:12:12,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 11:12:12,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:12:12,679 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2019-12-07 11:12:12,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:12:12,829 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-12-07 11:12:12,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:12:12,830 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-12-07 11:12:12,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:12:12,830 INFO L225 Difference]: With dead ends: 28 [2019-12-07 11:12:12,830 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 11:12:12,831 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-12-07 11:12:12,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 11:12:12,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 11:12:12,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 11:12:12,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-12-07 11:12:12,833 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2019-12-07 11:12:12,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:12:12,834 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-12-07 11:12:12,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 11:12:12,834 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-12-07 11:12:12,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 11:12:12,834 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:12:12,834 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:12:13,035 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:12:13,036 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:12:13,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:12:13,037 INFO L82 PathProgramCache]: Analyzing trace with hash -2079354756, now seen corresponding path program 1 times [2019-12-07 11:12:13,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:12:13,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290260527] [2019-12-07 11:12:13,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/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 [2019-12-07 11:12:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:12:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:12:13,711 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 11:12:13,711 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:12:13,911 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 11:12:13,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:12:13 BoogieIcfgContainer [2019-12-07 11:12:13,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:12:13,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:12:13,988 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:12:13,988 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:12:13,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:12:10" (3/4) ... [2019-12-07 11:12:13,990 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:12:14,047 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_efc73122-073e-4fc4-949a-6454a9704ad1/bin/utaipan/witness.graphml [2019-12-07 11:12:14,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:12:14,048 INFO L168 Benchmark]: Toolchain (without parser) took 15708.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 952.4 MB in the beginning and 876.9 MB in the end (delta: 75.4 MB). Peak memory consumption was 176.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:12:14,048 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:12:14,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -131.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:12:14,049 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:12:14,049 INFO L168 Benchmark]: Boogie Preprocessor took 32.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:12:14,050 INFO L168 Benchmark]: RCFGBuilder took 11698.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:12:14,050 INFO L168 Benchmark]: TraceAbstraction took 3620.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 883.7 MB in the end (delta: 147.1 MB). Peak memory consumption was 147.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:12:14,050 INFO L168 Benchmark]: Witness Printer took 59.40 ms. Allocated memory is still 1.1 GB. Free memory was 883.7 MB in the beginning and 876.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:12:14,052 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 259.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -131.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11698.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3620.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 883.7 MB in the end (delta: 147.1 MB). Peak memory consumption was 147.1 MB. Max. memory is 11.5 GB. * Witness Printer took 59.40 ms. Allocated memory is still 1.1 GB. Free memory was 883.7 MB in the beginning and 876.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 158]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L153] double x = 1.0 / 0.0; [L45] double y, hi, lo, c, t; [L46] __int32_t k = 0, xsb; [L47] __uint32_t hx; VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L50] ieee_double_shape_type gh_u; [L51] gh_u.value = (x) [L52] EXPR gh_u.parts.msw [L52] (hx) = gh_u.parts.msw [L54] xsb = (hx >> 31) & 1 [L55] hx &= 0x7fffffff VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L57] COND TRUE hx >= 0x40862E42 VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L58] COND TRUE hx >= 0x7ff00000 [L59] __uint32_t lx; VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L61] ieee_double_shape_type gl_u; [L62] gl_u.value = (x) [L63] EXPR gl_u.parts.lsw [L63] (lx) = gl_u.parts.lsw [L65] COND FALSE !(((hx & 0xfffff) | lx) != 0) VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L68] EXPR (xsb == 0) ? x : 0.0 VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L68] return (xsb == 0) ? x : 0.0; [L154] double res = __ieee754_exp(x); [L133] __int32_t hx, lx; VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L135] ieee_double_shape_type ew_u; [L136] ew_u.value = (x) [L137] EXPR ew_u.parts.msw [L137] (hx) = ew_u.parts.msw [L138] EXPR ew_u.parts.lsw [L138] (lx) = ew_u.parts.lsw [L140] hx &= 0x7fffffff [L141] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L142] hx = 0x7ff00000 - hx [L143] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L157] COND TRUE !isinf_double(x) [L158] __VERIFIER_error() VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 109 SDslu, 9 SDs, 0 SdLazy, 28 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 20 QuantifiedInterpolants, 8230 SizeOfPredicates, 16 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 20 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 incorrect! Received shutdown request...