./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 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/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_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/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 0.1.24-6b5699a [2019-11-25 08:58:20,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:58:20,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:58:20,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:58:20,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:58:20,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:58:20,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:58:20,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:58:20,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:58:20,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:58:20,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:58:20,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:58:20,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:58:20,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:58:20,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:58:20,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:58:20,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:58:20,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:58:20,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:58:20,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:58:20,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:58:20,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:58:20,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:58:20,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:58:20,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:58:20,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:58:20,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:58:20,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:58:20,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:58:20,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:58:20,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:58:20,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:58:20,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:58:20,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:58:20,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:58:20,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:58:20,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:58:20,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:58:20,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:58:20,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:58:20,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:58:20,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:58:20,755 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:58:20,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:58:20,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:58:20,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:58:20,757 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:58:20,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:58:20,757 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:58:20,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:58:20,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:58:20,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:58:20,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:58:20,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:58:20,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:58:20,768 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:58:20,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:58:20,769 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:58:20,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:58:20,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:58:20,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:58:20,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:58:20,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:58:20,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:58:20,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:58:20,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:58:20,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:58:20,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:58:20,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:58:20,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:58:20,771 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_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/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 [2019-11-25 08:58:20,902 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:58:20,912 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:58:20,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:58:20,919 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:58:20,919 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:58:20,920 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-25 08:58:20,968 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/data/29a5f9e32/448001307d56479f972d4668cc909e9b/FLAGb370c0fd7 [2019-11-25 08:58:21,388 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:58:21,389 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-25 08:58:21,394 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/data/29a5f9e32/448001307d56479f972d4668cc909e9b/FLAGb370c0fd7 [2019-11-25 08:58:21,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/data/29a5f9e32/448001307d56479f972d4668cc909e9b [2019-11-25 08:58:21,766 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:58:21,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:58:21,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:21,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:58:21,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:58:21,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:58:21" (1/1) ... [2019-11-25 08:58:21,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34f7b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:21, skipping insertion in model container [2019-11-25 08:58:21,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:58:21" (1/1) ... [2019-11-25 08:58:21,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:58:21,803 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:58:22,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:22,079 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:58:22,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:22,128 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:58:22,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:22 WrapperNode [2019-11-25 08:58:22,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:22,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:22,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:58:22,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:58:22,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:22" (1/1) ... [2019-11-25 08:58:22,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:22" (1/1) ... [2019-11-25 08:58:22,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:22,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:58:22,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:58:22,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:58:22,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:22" (1/1) ... [2019-11-25 08:58:22,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:22" (1/1) ... [2019-11-25 08:58:22,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:22" (1/1) ... [2019-11-25 08:58:22,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:22" (1/1) ... [2019-11-25 08:58:22,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:22" (1/1) ... [2019-11-25 08:58:22,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:22" (1/1) ... [2019-11-25 08:58:22,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:22" (1/1) ... [2019-11-25 08:58:22,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:58:22,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:58:22,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:58:22,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:58:22,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/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 [2019-11-25 08:58:22,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:58:22,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-25 08:58:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:58:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:58:22,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:58:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:58:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:58:22,429 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:58:22,429 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-25 08:58:22,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:22 BoogieIcfgContainer [2019-11-25 08:58:22,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:58:22,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:58:22,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:58:22,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:58:22,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:58:21" (1/3) ... [2019-11-25 08:58:22,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6575fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:58:22, skipping insertion in model container [2019-11-25 08:58:22,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:22" (2/3) ... [2019-11-25 08:58:22,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6575fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:58:22, skipping insertion in model container [2019-11-25 08:58:22,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:22" (3/3) ... [2019-11-25 08:58:22,438 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2019-11-25 08:58:22,459 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:58:22,464 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:58:22,489 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:58:22,507 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:58:22,508 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:58:22,508 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:58:22,508 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:58:22,508 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:58:22,508 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:58:22,508 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:58:22,509 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:58:22,521 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-25 08:58:22,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-25 08:58:22,525 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:58:22,526 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-25 08:58:22,526 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:58:22,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:22,532 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-11-25 08:58:22,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:22,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842899123] [2019-11-25 08:58:22,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:22,707 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:22,708 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:58:22,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:58:22 BoogieIcfgContainer [2019-11-25 08:58:22,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:58:22,727 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:58:22,727 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:58:22,727 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:58:22,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:22" (3/4) ... [2019-11-25 08:58:22,730 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:58:22,730 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:58:22,732 INFO L168 Benchmark]: Toolchain (without parser) took 964.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -136.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:22,732 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:22,733 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:22,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.21 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. [2019-11-25 08:58:22,735 INFO L168 Benchmark]: Boogie Preprocessor took 19.53 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:22,735 INFO L168 Benchmark]: RCFGBuilder took 245.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:22,736 INFO L168 Benchmark]: TraceAbstraction took 294.85 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:22,736 INFO L168 Benchmark]: Witness Printer took 3.33 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. [2019-11-25 08:58:22,740 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 358.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.21 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 19.53 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 245.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 294.85 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.33 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 0.1.24-6b5699a [2019-11-25 08:58:24,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:58:24,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:58:24,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:58:24,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:58:24,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:58:24,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:58:24,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:58:24,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:58:24,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:58:24,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:58:24,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:58:24,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:58:24,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:58:24,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:58:24,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:58:24,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:58:24,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:58:24,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:58:24,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:58:24,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:58:24,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:58:24,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:58:24,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:58:24,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:58:24,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:58:24,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:58:24,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:58:24,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:58:24,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:58:24,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:58:24,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:58:24,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:58:24,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:58:24,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:58:24,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:58:24,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:58:24,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:58:24,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:58:24,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:58:24,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:58:24,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:58:24,560 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:58:24,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:58:24,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:58:24,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:58:24,565 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:58:24,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:58:24,566 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:58:24,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:58:24,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:58:24,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:58:24,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:58:24,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:58:24,567 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:58:24,567 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:58:24,567 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:58:24,568 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:58:24,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:58:24,568 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:58:24,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:58:24,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:58:24,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:58:24,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:58:24,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:58:24,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:58:24,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:58:24,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:58:24,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:58:24,570 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:58:24,570 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:58:24,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:58:24,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:58:24,571 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_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/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 [2019-11-25 08:58:24,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:58:24,835 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:58:24,838 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:58:24,839 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:58:24,839 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:58:24,840 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-25 08:58:24,898 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/data/f3c91c1f7/d5a535df94694a788233f12f08fecaf0/FLAG32c0ca0a7 [2019-11-25 08:58:25,292 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:58:25,293 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-11-25 08:58:25,297 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/data/f3c91c1f7/d5a535df94694a788233f12f08fecaf0/FLAG32c0ca0a7 [2019-11-25 08:58:25,308 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/data/f3c91c1f7/d5a535df94694a788233f12f08fecaf0 [2019-11-25 08:58:25,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:58:25,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:58:25,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:25,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:58:25,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:58:25,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:58:25" (1/1) ... [2019-11-25 08:58:25,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd8dfbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25, skipping insertion in model container [2019-11-25 08:58:25,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:58:25" (1/1) ... [2019-11-25 08:58:25,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:58:25,339 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:58:25,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:25,495 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:58:25,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:25,540 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:58:25,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25 WrapperNode [2019-11-25 08:58:25,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:25,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:25,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:58:25,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:58:25,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25" (1/1) ... [2019-11-25 08:58:25,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25" (1/1) ... [2019-11-25 08:58:25,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:25,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:58:25,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:58:25,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:58:25,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25" (1/1) ... [2019-11-25 08:58:25,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25" (1/1) ... [2019-11-25 08:58:25,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25" (1/1) ... [2019-11-25 08:58:25,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25" (1/1) ... [2019-11-25 08:58:25,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25" (1/1) ... [2019-11-25 08:58:25,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25" (1/1) ... [2019-11-25 08:58:25,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25" (1/1) ... [2019-11-25 08:58:25,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:58:25,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:58:25,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:58:25,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:58:25,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/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 [2019-11-25 08:58:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-25 08:58:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:58:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:58:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:58:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:58:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:58:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:58:25,978 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:58:25,978 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-25 08:58:25,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:25 BoogieIcfgContainer [2019-11-25 08:58:25,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:58:25,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:58:25,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:58:25,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:58:25,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:58:25" (1/3) ... [2019-11-25 08:58:25,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2307389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:58:25, skipping insertion in model container [2019-11-25 08:58:25,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:25" (2/3) ... [2019-11-25 08:58:25,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2307389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:58:25, skipping insertion in model container [2019-11-25 08:58:25,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:25" (3/3) ... [2019-11-25 08:58:25,986 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2019-11-25 08:58:25,994 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:58:25,999 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:58:26,009 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:58:26,031 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:58:26,031 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:58:26,031 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:58:26,032 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:58:26,032 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:58:26,041 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:58:26,042 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:58:26,042 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:58:26,053 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-25 08:58:26,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-25 08:58:26,062 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:58:26,063 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-25 08:58:26,063 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:58:26,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:26,083 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-11-25 08:58:26,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:58:26,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508241704] [2019-11-25 08:58:26,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/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 [2019-11-25 08:58:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:26,410 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-25 08:58:26,411 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:58:26,612 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:58:26,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:58:26 BoogieIcfgContainer [2019-11-25 08:58:26,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:58:26,659 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:58:26,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:58:26,659 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:58:26,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:25" (3/4) ... [2019-11-25 08:58:26,662 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:58:26,696 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f4f7b93f-1b62-4fec-a1ef-c5040da4ce99/bin/uautomizer/witness.graphml [2019-11-25 08:58:26,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:58:26,698 INFO L168 Benchmark]: Toolchain (without parser) took 1386.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -152.2 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:26,698 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:26,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.13 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:26,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -207.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:26,700 INFO L168 Benchmark]: Boogie Preprocessor took 26.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:26,700 INFO L168 Benchmark]: RCFGBuilder took 313.05 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:26,701 INFO L168 Benchmark]: TraceAbstraction took 678.14 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:26,701 INFO L168 Benchmark]: Witness Printer took 37.35 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. [2019-11-25 08:58:26,704 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 228.13 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 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 99.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -207.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 313.05 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 678.14 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * Witness Printer took 37.35 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...