./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_union_tight.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c0005e6146056cc1de3f3f086fde77a54c02f63 .......................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c0005e6146056cc1de3f3f086fde77a54c02f63 ................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:20:26,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:20:26,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:20:26,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:20:26,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:20:26,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:20:26,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:20:26,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:20:26,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:20:26,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:20:26,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:20:26,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:20:26,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:20:26,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:20:26,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:20:26,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:20:26,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:20:26,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:20:26,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:20:26,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:20:26,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:20:26,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:20:26,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:20:26,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:20:26,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:20:26,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:20:26,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:20:26,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:20:26,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:20:26,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:20:26,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:20:26,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:20:26,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:20:26,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:20:26,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:20:26,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:20:26,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:20:26,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:20:26,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:20:26,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:20:26,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:20:26,169 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 13:20:26,181 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:20:26,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:20:26,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:20:26,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:20:26,183 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:20:26,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:20:26,183 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:20:26,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:20:26,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:20:26,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:20:26,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:20:26,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:20:26,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:20:26,184 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:20:26,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:20:26,185 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:20:26,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:20:26,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:20:26,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:20:26,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:20:26,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:20:26,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:20:26,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:20:26,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:20:26,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:20:26,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:20:26,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:20:26,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:20:26,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:20:26,187 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_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c0005e6146056cc1de3f3f086fde77a54c02f63 [2019-12-07 13:20:26,298 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:20:26,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:20:26,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:20:26,309 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:20:26,309 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:20:26,310 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2019-12-07 13:20:26,348 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/data/8784d5b46/2f1b94474ca6489fb6303e9380174250/FLAGadd0dd608 [2019-12-07 13:20:26,794 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:20:26,794 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/sv-benchmarks/c/float-benchs/cast_union_tight.c [2019-12-07 13:20:26,799 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/data/8784d5b46/2f1b94474ca6489fb6303e9380174250/FLAGadd0dd608 [2019-12-07 13:20:26,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/data/8784d5b46/2f1b94474ca6489fb6303e9380174250 [2019-12-07 13:20:26,809 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:20:26,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:20:26,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:20:26,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:20:26,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:20:26,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:20:26" (1/1) ... [2019-12-07 13:20:26,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408e5454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26, skipping insertion in model container [2019-12-07 13:20:26,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:20:26" (1/1) ... [2019-12-07 13:20:26,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:20:26,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:20:26,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:20:26,967 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:20:26,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:20:26,993 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:20:26,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26 WrapperNode [2019-12-07 13:20:26,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:20:26,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:20:26,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:20:26,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:20:26,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26" (1/1) ... [2019-12-07 13:20:27,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26" (1/1) ... [2019-12-07 13:20:27,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:20:27,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:20:27,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:20:27,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:20:27,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26" (1/1) ... [2019-12-07 13:20:27,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26" (1/1) ... [2019-12-07 13:20:27,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26" (1/1) ... [2019-12-07 13:20:27,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26" (1/1) ... [2019-12-07 13:20:27,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26" (1/1) ... [2019-12-07 13:20:27,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26" (1/1) ... [2019-12-07 13:20:27,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26" (1/1) ... [2019-12-07 13:20:27,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:20:27,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:20:27,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:20:27,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:20:27,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/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 [2019-12-07 13:20:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 13:20:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 13:20:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:20:27,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:20:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 13:20:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:20:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:20:27,192 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:20:27,192 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 13:20:27,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:20:27 BoogieIcfgContainer [2019-12-07 13:20:27,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:20:27,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:20:27,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:20:27,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:20:27,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:20:26" (1/3) ... [2019-12-07 13:20:27,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cdc50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:20:27, skipping insertion in model container [2019-12-07 13:20:27,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:26" (2/3) ... [2019-12-07 13:20:27,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cdc50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:20:27, skipping insertion in model container [2019-12-07 13:20:27,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:20:27" (3/3) ... [2019-12-07 13:20:27,197 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2019-12-07 13:20:27,204 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:20:27,208 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:20:27,215 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:20:27,230 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:20:27,230 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:20:27,230 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:20:27,230 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:20:27,230 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:20:27,230 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:20:27,230 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:20:27,230 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:20:27,239 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-12-07 13:20:27,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 13:20:27,242 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:20:27,243 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 13:20:27,243 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:20:27,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:20:27,247 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-12-07 13:20:27,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:20:27,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643171834] [2019-12-07 13:20:27,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:20:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:20:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:20:27,364 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:20:27,365 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:20:27,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:20:27 BoogieIcfgContainer [2019-12-07 13:20:27,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:20:27,380 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:20:27,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:20:27,380 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:20:27,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:20:27" (3/4) ... [2019-12-07 13:20:27,383 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 13:20:27,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:20:27,384 INFO L168 Benchmark]: Toolchain (without parser) took 573.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 940.8 MB in the beginning and 1.0 GB in the end (delta: -101.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:20:27,385 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:20:27,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:27,386 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.49 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:20:27,386 INFO L168 Benchmark]: Boogie Preprocessor took 14.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:27,387 INFO L168 Benchmark]: RCFGBuilder took 161.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:27,387 INFO L168 Benchmark]: TraceAbstraction took 185.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:27,387 INFO L168 Benchmark]: Witness Printer took 3.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:20:27,390 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 182.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.49 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 161.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 185.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 32, overapproximation of someBinaryArithmeticDOUBLEoperation at line 21, overapproximation of bitwiseXor at line 20. Possible FailurePath: [L26] int a; [L27] double r; [L29] a = __VERIFIER_nondet_int() [L16] union u x, y; [L17] x.i[0] = 0x43300000 [L18] EXPR x.i[0] [L18] y.i[0] = x.i[0] [L19] x.i[1] = 0x80000000 [L20] EXPR x.i[1] [L20] y.i[1] = i ^ x.i[1] [L21] EXPR y.d [L21] EXPR x.d [L21] return y.d - x.d; [L21] return y.d - x.d; [L21] return y.d - x.d; [L31] r = cast(a) [L7] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, 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 0.1.25-f470102 [2019-12-07 13:20:28,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:20:28,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:20:28,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:20:28,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:20:28,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:20:28,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:20:28,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:20:28,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:20:28,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:20:28,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:20:28,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:20:28,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:20:28,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:20:28,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:20:28,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:20:28,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:20:28,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:20:28,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:20:28,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:20:28,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:20:28,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:20:28,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:20:28,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:20:28,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:20:28,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:20:28,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:20:28,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:20:28,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:20:28,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:20:28,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:20:28,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:20:28,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:20:28,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:20:28,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:20:28,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:20:28,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:20:28,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:20:28,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:20:28,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:20:28,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:20:28,778 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 13:20:28,790 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:20:28,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:20:28,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:20:28,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:20:28,792 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:20:28,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:20:28,792 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:20:28,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:20:28,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:20:28,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:20:28,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:20:28,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:20:28,793 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:20:28,794 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:20:28,794 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:20:28,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:20:28,794 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:20:28,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:20:28,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:20:28,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:20:28,795 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:20:28,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:20:28,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:20:28,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:20:28,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:20:28,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:20:28,796 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 13:20:28,796 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:20:28,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:20:28,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:20:28,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:20:28,797 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_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c0005e6146056cc1de3f3f086fde77a54c02f63 [2019-12-07 13:20:28,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:20:28,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:20:28,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:20:28,967 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:20:28,968 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:20:28,968 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2019-12-07 13:20:29,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/data/7f673aaef/5735d9411588483a8d30ef46fcc6febe/FLAG16edb9eff [2019-12-07 13:20:29,445 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:20:29,445 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/sv-benchmarks/c/float-benchs/cast_union_tight.c [2019-12-07 13:20:29,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/data/7f673aaef/5735d9411588483a8d30ef46fcc6febe/FLAG16edb9eff [2019-12-07 13:20:29,458 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/data/7f673aaef/5735d9411588483a8d30ef46fcc6febe [2019-12-07 13:20:29,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:20:29,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:20:29,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:20:29,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:20:29,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:20:29,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:20:29" (1/1) ... [2019-12-07 13:20:29,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41944eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29, skipping insertion in model container [2019-12-07 13:20:29,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:20:29" (1/1) ... [2019-12-07 13:20:29,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:20:29,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:20:29,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:20:29,588 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:20:29,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:20:29,622 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:20:29,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29 WrapperNode [2019-12-07 13:20:29,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:20:29,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:20:29,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:20:29,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:20:29,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29" (1/1) ... [2019-12-07 13:20:29,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29" (1/1) ... [2019-12-07 13:20:29,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:20:29,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:20:29,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:20:29,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:20:29,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29" (1/1) ... [2019-12-07 13:20:29,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29" (1/1) ... [2019-12-07 13:20:29,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29" (1/1) ... [2019-12-07 13:20:29,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29" (1/1) ... [2019-12-07 13:20:29,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29" (1/1) ... [2019-12-07 13:20:29,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29" (1/1) ... [2019-12-07 13:20:29,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29" (1/1) ... [2019-12-07 13:20:29,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:20:29,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:20:29,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:20:29,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:20:29,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/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 [2019-12-07 13:20:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 13:20:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:20:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 13:20:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:20:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:20:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:20:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 13:20:30,049 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:20:30,049 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 13:20:30,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:20:30 BoogieIcfgContainer [2019-12-07 13:20:30,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:20:30,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:20:30,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:20:30,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:20:30,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:20:29" (1/3) ... [2019-12-07 13:20:30,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50887114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:20:30, skipping insertion in model container [2019-12-07 13:20:30,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:29" (2/3) ... [2019-12-07 13:20:30,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50887114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:20:30, skipping insertion in model container [2019-12-07 13:20:30,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:20:30" (3/3) ... [2019-12-07 13:20:30,055 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2019-12-07 13:20:30,061 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:20:30,065 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:20:30,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:20:30,087 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:20:30,087 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:20:30,087 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:20:30,087 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:20:30,087 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:20:30,088 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:20:30,088 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:20:30,088 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:20:30,096 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-12-07 13:20:30,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 13:20:30,099 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:20:30,100 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 13:20:30,100 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:20:30,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:20:30,104 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-12-07 13:20:30,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:20:30,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756961816] [2019-12-07 13:20:30,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/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 [2019-12-07 13:20:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:20:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:20:30,412 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 13:20:30,412 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:20:30,613 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:20:30,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:20:30 BoogieIcfgContainer [2019-12-07 13:20:30,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:20:30,633 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:20:30,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:20:30,633 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:20:30,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:20:30" (3/4) ... [2019-12-07 13:20:30,635 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 13:20:30,662 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0ccd9aff-f642-4e9c-9c04-5ef57645c966/bin/uautomizer/witness.graphml [2019-12-07 13:20:30,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:20:30,663 INFO L168 Benchmark]: Toolchain (without parser) took 1202.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -108.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:30,664 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:20:30,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.91 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:30,664 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:30,665 INFO L168 Benchmark]: Boogie Preprocessor took 18.80 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. [2019-12-07 13:20:30,665 INFO L168 Benchmark]: RCFGBuilder took 352.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:30,665 INFO L168 Benchmark]: TraceAbstraction took 581.84 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:30,666 INFO L168 Benchmark]: Witness Printer took 29.53 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. [2019-12-07 13:20:30,667 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.91 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 943.0 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 56.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.80 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 352.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 581.84 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 29.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L26] int a; [L27] double r; [L29] a = __VERIFIER_nondet_int() [L16] union u x, y; [L17] x.i[0] = 0x43300000 [L18] EXPR x.i[0] [L18] y.i[0] = x.i[0] [L19] x.i[1] = 0x80000000 [L20] EXPR x.i[1] [L20] y.i[1] = i ^ x.i[1] [L21] EXPR y.d [L21] EXPR x.d [L21] return y.d - x.d; [L21] return y.d - x.d; [L21] return y.d - x.d; [L31] r = cast(a) [L7] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...