./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_union_tight.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c0005e6146056cc1de3f3f086fde77a54c02f63 ............................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c0005e6146056cc1de3f3f086fde77a54c02f63 ............................................................................................................................................................................................................................................... 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 0.1.24-cad4683 [2019-10-22 08:57:26,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:26,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:26,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:26,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:26,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:26,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:26,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:26,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:26,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:26,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:26,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:26,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:26,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:26,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:26,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:26,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:26,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:26,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:26,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:26,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:26,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:26,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:26,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:26,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:26,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:26,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:26,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:26,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:26,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:26,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:26,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:26,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:26,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:26,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:26,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:27,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:27,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:27,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:27,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:27,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:27,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:57:27,015 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:27,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:27,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:27,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:27,016 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:27,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:27,017 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:27,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:27,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:27,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:27,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:27,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:27,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:27,018 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:27,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:27,018 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:27,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:27,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:27,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:27,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:27,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:27,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:27,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:27,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:27,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:27,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:27,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:27,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:27,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c0005e6146056cc1de3f3f086fde77a54c02f63 [2019-10-22 08:57:27,044 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:27,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:27,057 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:27,058 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:27,058 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:27,059 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2019-10-22 08:57:27,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/data/3d2b014f7/2908f7c80f9c49c383a08a0dcc2be0b3/FLAG6fdb444b2 [2019-10-22 08:57:27,483 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:27,484 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/sv-benchmarks/c/float-benchs/cast_union_tight.c [2019-10-22 08:57:27,491 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/data/3d2b014f7/2908f7c80f9c49c383a08a0dcc2be0b3/FLAG6fdb444b2 [2019-10-22 08:57:27,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/data/3d2b014f7/2908f7c80f9c49c383a08a0dcc2be0b3 [2019-10-22 08:57:27,504 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:27,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:27,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:27,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:27,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:27,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:27" (1/1) ... [2019-10-22 08:57:27,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68291dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27, skipping insertion in model container [2019-10-22 08:57:27,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:27" (1/1) ... [2019-10-22 08:57:27,519 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:27,534 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:27,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:27,734 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:27,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:27,769 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:27,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27 WrapperNode [2019-10-22 08:57:27,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:27,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:27,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:27,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:27,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27" (1/1) ... [2019-10-22 08:57:27,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27" (1/1) ... [2019-10-22 08:57:27,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:27,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:27,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:27,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:27,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27" (1/1) ... [2019-10-22 08:57:27,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27" (1/1) ... [2019-10-22 08:57:27,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27" (1/1) ... [2019-10-22 08:57:27,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27" (1/1) ... [2019-10-22 08:57:27,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27" (1/1) ... [2019-10-22 08:57:27,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27" (1/1) ... [2019-10-22 08:57:27,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27" (1/1) ... [2019-10-22 08:57:27,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:27,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:27,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:27,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:27,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 08:57:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:57:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:28,182 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:28,183 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 08:57:28,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:28 BoogieIcfgContainer [2019-10-22 08:57:28,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:28,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:28,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:28,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:28,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:27" (1/3) ... [2019-10-22 08:57:28,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d1e8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:28, skipping insertion in model container [2019-10-22 08:57:28,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:27" (2/3) ... [2019-10-22 08:57:28,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d1e8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:28, skipping insertion in model container [2019-10-22 08:57:28,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:28" (3/3) ... [2019-10-22 08:57:28,191 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2019-10-22 08:57:28,200 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:28,206 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:57:28,217 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:57:28,241 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:28,244 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:28,245 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:28,245 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:28,245 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:28,245 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:28,245 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:28,246 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:28,259 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-10-22 08:57:28,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 08:57:28,267 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:28,268 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 08:57:28,270 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:28,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:28,276 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-10-22 08:57:28,283 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:28,284 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536474569] [2019-10-22 08:57:28,284 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:28,284 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:28,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:28,473 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:28,474 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:57:28,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:28 BoogieIcfgContainer [2019-10-22 08:57:28,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:28,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:28,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:28,500 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:28,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:28" (3/4) ... [2019-10-22 08:57:28,504 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:57:28,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:28,508 INFO L168 Benchmark]: Toolchain (without parser) took 1001.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -152.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:28,508 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:28,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:28,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:28,513 INFO L168 Benchmark]: Boogie Preprocessor took 23.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:28,513 INFO L168 Benchmark]: RCFGBuilder took 354.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:28,514 INFO L168 Benchmark]: TraceAbstraction took 314.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:28,514 INFO L168 Benchmark]: Witness Printer took 5.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:28,518 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 264.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 354.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 314.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 32, overapproximation of someBinaryArithmeticDOUBLEoperation at line 21, overapproximation of bitwiseXor at line 20. Possible FailurePath: [L26] int a; [L27] double r; [L29] a = __VERIFIER_nondet_int() [L16] union u x, y; [L17] x.i[0] = 0x43300000 [L18] EXPR x.i[0] [L18] y.i[0] = x.i[0] [L19] x.i[1] = 0x80000000 [L20] EXPR x.i[1] [L20] y.i[1] = i ^ x.i[1] [L21] EXPR y.d [L21] EXPR x.d [L21] return y.d - x.d; [L21] return y.d - x.d; [L21] return y.d - x.d; [L31] r = cast(a) [L7] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 08:57:30,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:30,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:30,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:30,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:30,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:30,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:30,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:30,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:30,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:30,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:30,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:30,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:30,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:30,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:30,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:30,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:30,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:30,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:30,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:30,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:30,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:30,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:30,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:30,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:30,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:30,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:30,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:30,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:30,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:30,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:30,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:30,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:30,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:30,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:30,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:30,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:30,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:30,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:30,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:30,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:30,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:57:30,498 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:30,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:30,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:30,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:30,499 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:30,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:30,500 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:30,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:30,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:30,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:30,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:30,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:30,501 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:57:30,501 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:57:30,501 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:30,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:30,501 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:30,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:30,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:30,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:30,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:30,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:30,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:30,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:30,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:30,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:30,503 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:57:30,504 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:57:30,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:30,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:57:30,504 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c0005e6146056cc1de3f3f086fde77a54c02f63 [2019-10-22 08:57:30,530 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:30,540 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:30,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:30,544 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:30,544 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:30,545 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2019-10-22 08:57:30,588 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/data/5b1165b01/8a23fea59730403fb694fee7427810f8/FLAGc681437f4 [2019-10-22 08:57:30,990 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:30,990 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/sv-benchmarks/c/float-benchs/cast_union_tight.c [2019-10-22 08:57:30,996 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/data/5b1165b01/8a23fea59730403fb694fee7427810f8/FLAGc681437f4 [2019-10-22 08:57:31,392 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/data/5b1165b01/8a23fea59730403fb694fee7427810f8 [2019-10-22 08:57:31,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:31,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:31,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:31,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:31,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:31,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:31" (1/1) ... [2019-10-22 08:57:31,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f1c206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31, skipping insertion in model container [2019-10-22 08:57:31,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:31" (1/1) ... [2019-10-22 08:57:31,412 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:31,427 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:31,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:31,572 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:31,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:31,621 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:31,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31 WrapperNode [2019-10-22 08:57:31,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:31,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:31,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:31,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:31,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31" (1/1) ... [2019-10-22 08:57:31,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31" (1/1) ... [2019-10-22 08:57:31,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:31,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:31,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:31,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:31,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31" (1/1) ... [2019-10-22 08:57:31,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31" (1/1) ... [2019-10-22 08:57:31,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31" (1/1) ... [2019-10-22 08:57:31,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31" (1/1) ... [2019-10-22 08:57:31,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31" (1/1) ... [2019-10-22 08:57:31,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31" (1/1) ... [2019-10-22 08:57:31,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31" (1/1) ... [2019-10-22 08:57:31,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:31,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:31,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:31,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:31,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-10-22 08:57:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 08:57:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:57:32,138 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:32,138 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 08:57:32,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:32 BoogieIcfgContainer [2019-10-22 08:57:32,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:32,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:32,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:32,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:32,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:31" (1/3) ... [2019-10-22 08:57:32,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b35cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:32, skipping insertion in model container [2019-10-22 08:57:32,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:31" (2/3) ... [2019-10-22 08:57:32,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b35cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:32, skipping insertion in model container [2019-10-22 08:57:32,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:32" (3/3) ... [2019-10-22 08:57:32,147 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2019-10-22 08:57:32,156 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:32,163 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:57:32,173 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:57:32,195 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:32,195 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:32,196 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:32,196 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:32,196 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:32,196 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:32,196 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:32,196 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:32,206 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-10-22 08:57:32,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 08:57:32,210 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:32,211 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 08:57:32,212 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:32,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:32,217 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-10-22 08:57:32,225 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:57:32,225 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435848837] [2019-10-22 08:57:32,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-10-22 08:57:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:32,553 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-10-22 08:57:32,553 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:57:32,754 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:57:32,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:32 BoogieIcfgContainer [2019-10-22 08:57:32,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:32,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:32,781 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:32,781 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:32,781 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:32" (3/4) ... [2019-10-22 08:57:32,784 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:57:32,822 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6d18b458-c09b-4b34-b0cc-21e6e77ef367/bin/uautomizer/witness.graphml [2019-10-22 08:57:32,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:32,824 INFO L168 Benchmark]: Toolchain (without parser) took 1426.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -161.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:32,825 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:32,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.82 ms. Allocated memory is still 1.0 GB. Free memory was 945.6 MB in the beginning and 934.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:32,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 934.9 MB in the beginning and 1.2 GB in the end (delta: -221.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:32,826 INFO L168 Benchmark]: Boogie Preprocessor took 26.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:32,827 INFO L168 Benchmark]: RCFGBuilder took 386.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:32,827 INFO L168 Benchmark]: TraceAbstraction took 640.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:32,828 INFO L168 Benchmark]: Witness Printer took 41.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:32,831 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 224.82 ms. Allocated memory is still 1.0 GB. Free memory was 945.6 MB in the beginning and 934.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 102.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 934.9 MB in the beginning and 1.2 GB in the end (delta: -221.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 386.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 640.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Witness Printer took 41.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L26] int a; [L27] double r; [L29] a = __VERIFIER_nondet_int() [L16] union u x, y; [L17] x.i[0] = 0x43300000 [L18] EXPR x.i[0] [L18] y.i[0] = x.i[0] [L19] x.i[1] = 0x80000000 [L20] EXPR x.i[1] [L20] y.i[1] = i ^ x.i[1] [L21] EXPR y.d [L21] EXPR x.d [L21] return y.d - x.d; [L21] return y.d - x.d; [L21] return y.d - x.d; [L31] r = cast(a) [L7] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...