./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_union_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/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 4ab78e88e866bccb3788105d7b85f6b41d9bbaf2 ......................................................................................................................................................................................................................................... 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_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/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 4ab78e88e866bccb3788105d7b85f6b41d9bbaf2 ............................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 10:25:52,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:25:52,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:25:52,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:25:52,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:25:52,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:25:52,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:25:52,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:25:52,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:25:52,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:25:52,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:25:52,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:25:52,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:25:52,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:25:52,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:25:52,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:25:52,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:25:52,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:25:52,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:25:52,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:25:52,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:25:52,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:25:52,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:25:52,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:25:52,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:25:52,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:25:52,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:25:52,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:25:52,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:25:52,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:25:52,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:25:52,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:25:52,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:25:52,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:25:52,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:25:52,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:25:52,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:25:52,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:25:52,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:25:52,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:25:52,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:25:52,627 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:25:52,651 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:25:52,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:25:52,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:25:52,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:25:52,663 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:25:52,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:25:52,664 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:25:52,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:25:52,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:25:52,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:25:52,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:25:52,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:25:52,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:25:52,665 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:25:52,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:25:52,666 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:25:52,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:25:52,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:25:52,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:25:52,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:25:52,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:25:52,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:25:52,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:25:52,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:25:52,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:25:52,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:25:52,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:25:52,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:25:52,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/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 -> 4ab78e88e866bccb3788105d7b85f6b41d9bbaf2 [2019-11-20 10:25:52,837 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:25:52,854 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:25:52,856 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:25:52,857 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:25:52,858 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:25:52,858 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-20 10:25:52,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/data/11b9f9741/5179ba7848024f5e99bcf274c1f26dfd/FLAGb3e43b3a6 [2019-11-20 10:25:53,330 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:25:53,330 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-20 10:25:53,336 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/data/11b9f9741/5179ba7848024f5e99bcf274c1f26dfd/FLAGb3e43b3a6 [2019-11-20 10:25:53,351 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/data/11b9f9741/5179ba7848024f5e99bcf274c1f26dfd [2019-11-20 10:25:53,354 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:25:53,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:25:53,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:25:53,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:25:53,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:25:53,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:25:53" (1/1) ... [2019-11-20 10:25:53,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed8d722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53, skipping insertion in model container [2019-11-20 10:25:53,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:25:53" (1/1) ... [2019-11-20 10:25:53,374 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:25:53,394 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:25:53,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:25:53,629 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:25:53,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:25:53,668 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:25:53,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53 WrapperNode [2019-11-20 10:25:53,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:25:53,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:25:53,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:25:53,670 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:25:53,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53" (1/1) ... [2019-11-20 10:25:53,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53" (1/1) ... [2019-11-20 10:25:53,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:25:53,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:25:53,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:25:53,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:25:53,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53" (1/1) ... [2019-11-20 10:25:53,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53" (1/1) ... [2019-11-20 10:25:53,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53" (1/1) ... [2019-11-20 10:25:53,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53" (1/1) ... [2019-11-20 10:25:53,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53" (1/1) ... [2019-11-20 10:25:53,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53" (1/1) ... [2019-11-20 10:25:53,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53" (1/1) ... [2019-11-20 10:25:53,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:25:53,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:25:53,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:25:53,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:25:53,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:25:53,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:25:53,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 10:25:53,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:25:53,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:25:53,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:25:53,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 10:25:53,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:25:54,010 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:25:54,010 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 10:25:54,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:25:54 BoogieIcfgContainer [2019-11-20 10:25:54,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:25:54,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:25:54,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:25:54,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:25:54,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:25:53" (1/3) ... [2019-11-20 10:25:54,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450540c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:25:54, skipping insertion in model container [2019-11-20 10:25:54,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:53" (2/3) ... [2019-11-20 10:25:54,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450540c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:25:54, skipping insertion in model container [2019-11-20 10:25:54,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:25:54" (3/3) ... [2019-11-20 10:25:54,019 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2019-11-20 10:25:54,028 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:25:54,051 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:25:54,061 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:25:54,097 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:25:54,097 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:25:54,097 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:25:54,098 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:25:54,098 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:25:54,098 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:25:54,099 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:25:54,099 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:25:54,111 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-20 10:25:54,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 10:25:54,116 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:25:54,117 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 10:25:54,118 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:25:54,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:25:54,124 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-11-20 10:25:54,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:25:54,132 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673675835] [2019-11-20 10:25:54,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:25:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:25:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:25:54,329 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:25:54,330 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:25:54,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:25:54 BoogieIcfgContainer [2019-11-20 10:25:54,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:25:54,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:25:54,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:25:54,353 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:25:54,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:25:54" (3/4) ... [2019-11-20 10:25:54,357 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:25:54,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:25:54,360 INFO L168 Benchmark]: Toolchain (without parser) took 1003.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:25:54,361 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:25:54,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:25:54,362 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:25:54,362 INFO L168 Benchmark]: Boogie Preprocessor took 20.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:25:54,363 INFO L168 Benchmark]: RCFGBuilder took 288.53 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: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:25:54,364 INFO L168 Benchmark]: TraceAbstraction took 339.78 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-20 10:25:54,364 INFO L168 Benchmark]: Witness Printer took 4.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:25:54,367 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 309.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 288.53 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: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 339.78 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.98 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: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 34, overapproximation of someBinaryArithmeticDOUBLEoperation at line 22, overapproximation of bitwiseXor at line 21. Possible FailurePath: [L27] int a; [L28] double r; [L30] a = __VERIFIER_nondet_int() [L17] union u x, y; [L18] x.i[0] = 0x43300000 [L19] EXPR x.i[0] [L19] y.i[0] = x.i[0] [L20] x.i[1] = 0x80000000 [L21] EXPR x.i[1] [L21] y.i[1] = i ^ x.i[1] [L22] EXPR y.d [L22] EXPR x.d [L22] return y.d - x.d; [L22] return y.d - x.d; [L22] return y.d - x.d; [L33] r = cast(a) [L8] COND TRUE !(cond) [L8] __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 0.1.24-678e011 [2019-11-20 10:25:56,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:25:56,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:25:56,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:25:56,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:25:56,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:25:56,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:25:56,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:25:56,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:25:56,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:25:56,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:25:56,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:25:56,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:25:56,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:25:56,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:25:56,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:25:56,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:25:56,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:25:56,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:25:56,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:25:56,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:25:56,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:25:56,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:25:56,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:25:56,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:25:56,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:25:56,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:25:56,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:25:56,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:25:56,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:25:56,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:25:56,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:25:56,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:25:56,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:25:56,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:25:56,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:25:56,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:25:56,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:25:56,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:25:56,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:25:56,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:25:56,239 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 10:25:56,265 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:25:56,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:25:56,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:25:56,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:25:56,268 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:25:56,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:25:56,269 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:25:56,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:25:56,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:25:56,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:25:56,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:25:56,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:25:56,271 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 10:25:56,271 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 10:25:56,271 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:25:56,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:25:56,272 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:25:56,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:25:56,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:25:56,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:25:56,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:25:56,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:25:56,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:25:56,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:25:56,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:25:56,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:25:56,274 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 10:25:56,274 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 10:25:56,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:25:56,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 10:25:56,275 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_090ad148-98ed-404b-a1ee-5b28b8ca7b84/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 -> 4ab78e88e866bccb3788105d7b85f6b41d9bbaf2 [2019-11-20 10:25:56,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:25:56,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:25:56,670 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:25:56,672 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:25:56,673 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:25:56,674 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-20 10:25:56,733 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/data/ea68a2f52/94c65148d2204da8a92f8a580318795f/FLAGad6be3b22 [2019-11-20 10:25:57,134 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:25:57,135 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-20 10:25:57,142 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/data/ea68a2f52/94c65148d2204da8a92f8a580318795f/FLAGad6be3b22 [2019-11-20 10:25:57,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/data/ea68a2f52/94c65148d2204da8a92f8a580318795f [2019-11-20 10:25:57,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:25:57,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:25:57,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:25:57,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:25:57,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:25:57,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:25:57" (1/1) ... [2019-11-20 10:25:57,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f499a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57, skipping insertion in model container [2019-11-20 10:25:57,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:25:57" (1/1) ... [2019-11-20 10:25:57,514 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:25:57,534 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:25:57,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:25:57,733 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:25:57,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:25:57,799 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:25:57,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57 WrapperNode [2019-11-20 10:25:57,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:25:57,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:25:57,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:25:57,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:25:57,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57" (1/1) ... [2019-11-20 10:25:57,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57" (1/1) ... [2019-11-20 10:25:57,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:25:57,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:25:57,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:25:57,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:25:57,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57" (1/1) ... [2019-11-20 10:25:57,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57" (1/1) ... [2019-11-20 10:25:57,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57" (1/1) ... [2019-11-20 10:25:57,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57" (1/1) ... [2019-11-20 10:25:57,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57" (1/1) ... [2019-11-20 10:25:57,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57" (1/1) ... [2019-11-20 10:25:57,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57" (1/1) ... [2019-11-20 10:25:57,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:25:57,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:25:57,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:25:57,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:25:57,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:25:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-20 10:25:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:25:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 10:25:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:25:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:25:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:25:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 10:25:58,314 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:25:58,315 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 10:25:58,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:25:58 BoogieIcfgContainer [2019-11-20 10:25:58,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:25:58,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:25:58,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:25:58,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:25:58,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:25:57" (1/3) ... [2019-11-20 10:25:58,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bf8d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:25:58, skipping insertion in model container [2019-11-20 10:25:58,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:25:57" (2/3) ... [2019-11-20 10:25:58,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bf8d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:25:58, skipping insertion in model container [2019-11-20 10:25:58,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:25:58" (3/3) ... [2019-11-20 10:25:58,322 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2019-11-20 10:25:58,330 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:25:58,336 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:25:58,346 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:25:58,369 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:25:58,369 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:25:58,369 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:25:58,369 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:25:58,369 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:25:58,369 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:25:58,370 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:25:58,370 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:25:58,379 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-20 10:25:58,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 10:25:58,384 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:25:58,385 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 10:25:58,385 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:25:58,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:25:58,390 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-11-20 10:25:58,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:25:58,399 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81238248] [2019-11-20 10:25:58,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 10:25:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:25:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:25:58,789 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-20 10:25:58,789 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:25:58,990 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 10:25:59,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:25:59 BoogieIcfgContainer [2019-11-20 10:25:59,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:25:59,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:25:59,011 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:25:59,011 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:25:59,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:25:58" (3/4) ... [2019-11-20 10:25:59,013 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 10:25:59,048 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_090ad148-98ed-404b-a1ee-5b28b8ca7b84/bin/uautomizer/witness.graphml [2019-11-20 10:25:59,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:25:59,050 INFO L168 Benchmark]: Toolchain (without parser) took 1553.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -136.3 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:25:59,051 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:25:59,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.71 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:25:59,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:25:59,053 INFO L168 Benchmark]: Boogie Preprocessor took 42.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:25:59,053 INFO L168 Benchmark]: RCFGBuilder took 342.30 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:25:59,054 INFO L168 Benchmark]: TraceAbstraction took 693.02 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:25:59,054 INFO L168 Benchmark]: Witness Printer took 37.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:25:59,057 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.71 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 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 129.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 342.30 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 693.02 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Witness Printer took 37.64 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: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L27] int a; [L28] double r; [L30] a = __VERIFIER_nondet_int() [L17] union u x, y; [L18] x.i[0] = 0x43300000 [L19] EXPR x.i[0] [L19] y.i[0] = x.i[0] [L20] x.i[1] = 0x80000000 [L21] EXPR x.i[1] [L21] y.i[1] = i ^ x.i[1] [L22] EXPR y.d [L22] EXPR x.d [L22] return y.d - x.d; [L22] return y.d - x.d; [L22] return y.d - x.d; [L33] r = cast(a) [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, 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...