./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/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_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/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 0.1.25-f470102 [2019-12-07 12:36:39,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:36:39,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:36:39,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:36:39,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:36:39,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:36:39,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:36:39,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:36:39,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:36:39,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:36:39,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:36:39,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:36:39,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:36:39,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:36:39,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:36:39,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:36:39,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:36:39,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:36:39,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:36:39,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:36:39,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:36:39,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:36:39,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:36:39,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:36:39,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:36:39,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:36:39,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:36:39,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:36:39,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:36:39,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:36:39,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:36:39,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:36:39,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:36:39,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:36:39,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:36:39,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:36:39,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:36:39,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:36:39,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:36:39,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:36:39,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:36:39,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 12:36:39,398 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:36:39,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:36:39,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:36:39,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:36:39,399 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:36:39,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:36:39,399 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:36:39,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:36:39,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:36:39,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:36:39,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:36:39,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:36:39,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:36:39,400 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:36:39,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:36:39,401 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:36:39,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:36:39,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:36:39,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:36:39,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:36:39,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:36:39,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:36:39,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:36:39,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:36:39,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:36:39,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:36:39,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:36:39,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:36:39,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:36:39,403 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_f92965e9-e409-40e5-9539-bb58169f4ffd/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 [2019-12-07 12:36:39,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:36:39,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:36:39,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:36:39,521 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:36:39,521 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:36:39,521 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-12-07 12:36:39,560 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/data/7aed873e7/d880b5013aa34c6298646a578a5b8d4f/FLAG168081c64 [2019-12-07 12:36:39,894 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:36:39,895 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-12-07 12:36:39,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/data/7aed873e7/d880b5013aa34c6298646a578a5b8d4f/FLAG168081c64 [2019-12-07 12:36:39,907 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/data/7aed873e7/d880b5013aa34c6298646a578a5b8d4f [2019-12-07 12:36:39,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:36:39,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:36:39,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:36:39,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:36:39,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:36:39,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:36:39" (1/1) ... [2019-12-07 12:36:39,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12624de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:39, skipping insertion in model container [2019-12-07 12:36:39,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:36:39" (1/1) ... [2019-12-07 12:36:39,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:36:39,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:36:40,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:36:40,072 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:36:40,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:36:40,099 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:36:40,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40 WrapperNode [2019-12-07 12:36:40,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:36:40,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:36:40,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:36:40,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:36:40,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40" (1/1) ... [2019-12-07 12:36:40,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40" (1/1) ... [2019-12-07 12:36:40,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:36:40,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:36:40,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:36:40,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:36:40,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40" (1/1) ... [2019-12-07 12:36:40,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40" (1/1) ... [2019-12-07 12:36:40,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40" (1/1) ... [2019-12-07 12:36:40,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40" (1/1) ... [2019-12-07 12:36:40,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40" (1/1) ... [2019-12-07 12:36:40,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40" (1/1) ... [2019-12-07 12:36:40,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40" (1/1) ... [2019-12-07 12:36:40,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:36:40,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:36:40,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:36:40,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:36:40,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/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 12:36:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:36:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 12:36:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:36:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:36:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:36:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:36:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:36:40,300 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:36:40,300 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 12:36:40,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:40 BoogieIcfgContainer [2019-12-07 12:36:40,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:36:40,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:36:40,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:36:40,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:36:40,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:36:39" (1/3) ... [2019-12-07 12:36:40,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b059105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:36:40, skipping insertion in model container [2019-12-07 12:36:40,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40" (2/3) ... [2019-12-07 12:36:40,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b059105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:36:40, skipping insertion in model container [2019-12-07 12:36:40,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:40" (3/3) ... [2019-12-07 12:36:40,306 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2019-12-07 12:36:40,312 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:36:40,317 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:36:40,324 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:36:40,339 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:36:40,339 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:36:40,339 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:36:40,339 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:36:40,339 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:36:40,339 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:36:40,339 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:36:40,339 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:36:40,348 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-12-07 12:36:40,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 12:36:40,351 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:36:40,352 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 12:36:40,352 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:36:40,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:36:40,356 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-12-07 12:36:40,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:36:40,362 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128087350] [2019-12-07 12:36:40,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:36:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:36:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:36:40,478 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:36:40,478 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:36:40,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:36:40 BoogieIcfgContainer [2019-12-07 12:36:40,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:36:40,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:36:40,493 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:36:40,493 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:36:40,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:40" (3/4) ... [2019-12-07 12:36:40,496 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:36:40,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:36:40,498 INFO L168 Benchmark]: Toolchain (without parser) took 586.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 939.8 MB in the beginning and 1.0 GB in the end (delta: -101.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:36:40,498 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:36:40,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:40,499 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.62 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 12:36:40,499 INFO L168 Benchmark]: Boogie Preprocessor took 14.75 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 12:36:40,500 INFO L168 Benchmark]: RCFGBuilder took 163.00 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 12:36:40,500 INFO L168 Benchmark]: TraceAbstraction took 191.02 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:40,501 INFO L168 Benchmark]: Witness Printer took 2.92 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 12:36:40,503 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.62 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 14.75 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 163.00 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 191.02 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.92 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: 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: 0.1s, 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 12:36:41,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:36:41,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:36:41,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:36:41,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:36:41,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:36:41,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:36:41,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:36:41,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:36:41,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:36:41,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:36:41,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:36:41,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:36:41,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:36:41,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:36:41,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:36:41,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:36:41,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:36:41,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:36:41,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:36:41,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:36:41,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:36:41,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:36:41,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:36:41,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:36:41,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:36:41,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:36:41,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:36:41,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:36:41,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:36:41,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:36:41,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:36:41,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:36:41,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:36:41,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:36:41,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:36:41,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:36:41,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:36:41,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:36:41,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:36:41,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:36:41,885 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 12:36:41,897 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:36:41,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:36:41,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:36:41,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:36:41,899 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:36:41,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:36:41,899 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:36:41,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:36:41,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:36:41,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:36:41,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:36:41,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:36:41,900 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:36:41,900 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:36:41,900 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:36:41,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:36:41,900 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:36:41,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:36:41,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:36:41,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:36:41,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:36:41,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:36:41,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:36:41,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:36:41,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:36:41,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:36:41,902 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 12:36:41,902 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:36:41,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:36:41,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:36:41,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:36:41,903 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_f92965e9-e409-40e5-9539-bb58169f4ffd/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 [2019-12-07 12:36:42,073 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:36:42,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:36:42,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:36:42,084 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:36:42,084 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:36:42,084 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-12-07 12:36:42,122 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/data/d1606c43e/0a80a87ec61c4d669bee342c0b44da57/FLAG59551f2ec [2019-12-07 12:36:42,598 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:36:42,598 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/sv-benchmarks/c/float-benchs/cast_union_loose.c [2019-12-07 12:36:42,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/data/d1606c43e/0a80a87ec61c4d669bee342c0b44da57/FLAG59551f2ec [2019-12-07 12:36:42,611 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/data/d1606c43e/0a80a87ec61c4d669bee342c0b44da57 [2019-12-07 12:36:42,613 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:36:42,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:36:42,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:36:42,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:36:42,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:36:42,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:36:42" (1/1) ... [2019-12-07 12:36:42,619 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 12:36:42, skipping insertion in model container [2019-12-07 12:36:42,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:36:42" (1/1) ... [2019-12-07 12:36:42,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:36:42,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:36:42,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:36:42,744 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:36:42,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:36:42,777 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:36:42,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:42 WrapperNode [2019-12-07 12:36:42,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:36:42,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:36:42,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:36:42,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:36:42,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:42" (1/1) ... [2019-12-07 12:36:42,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:42" (1/1) ... [2019-12-07 12:36:42,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:36:42,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:36:42,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:36:42,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:36:42,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:42" (1/1) ... [2019-12-07 12:36:42,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:42" (1/1) ... [2019-12-07 12:36:42,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:42" (1/1) ... [2019-12-07 12:36:42,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:42" (1/1) ... [2019-12-07 12:36:42,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:42" (1/1) ... [2019-12-07 12:36:42,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:42" (1/1) ... [2019-12-07 12:36:42,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:42" (1/1) ... [2019-12-07 12:36:42,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:36:42,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:36:42,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:36:42,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:36:42,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/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 12:36:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 12:36:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:36:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 12:36:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:36:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:36:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:36:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 12:36:43,153 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:36:43,153 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 12:36:43,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:43 BoogieIcfgContainer [2019-12-07 12:36:43,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:36:43,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:36:43,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:36:43,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:36:43,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:36:42" (1/3) ... [2019-12-07 12:36:43,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38265ce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:36:43, skipping insertion in model container [2019-12-07 12:36:43,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:42" (2/3) ... [2019-12-07 12:36:43,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38265ce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:36:43, skipping insertion in model container [2019-12-07 12:36:43,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:43" (3/3) ... [2019-12-07 12:36:43,159 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2019-12-07 12:36:43,165 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:36:43,169 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:36:43,177 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:36:43,191 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:36:43,191 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:36:43,191 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:36:43,191 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:36:43,191 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:36:43,191 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:36:43,191 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:36:43,192 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:36:43,199 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-12-07 12:36:43,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 12:36:43,203 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:36:43,204 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 12:36:43,204 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:36:43,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:36:43,208 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-12-07 12:36:43,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:36:43,215 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415254159] [2019-12-07 12:36:43,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/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 12:36:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:36:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:36:43,485 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 12:36:43,485 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:36:43,686 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:36:43,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:36:43 BoogieIcfgContainer [2019-12-07 12:36:43,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:36:43,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:36:43,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:36:43,704 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:36:43,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:43" (3/4) ... [2019-12-07 12:36:43,706 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 12:36:43,733 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f92965e9-e409-40e5-9539-bb58169f4ffd/bin/uautomizer/witness.graphml [2019-12-07 12:36:43,733 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:36:43,734 INFO L168 Benchmark]: Toolchain (without parser) took 1119.74 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: -109.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:43,734 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 12:36:43,735 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.34 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 12:36:43,735 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.53 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: -172.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:43,735 INFO L168 Benchmark]: Boogie Preprocessor took 21.59 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 12:36:43,736 INFO L168 Benchmark]: RCFGBuilder took 293.64 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:43,736 INFO L168 Benchmark]: TraceAbstraction took 549.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:43,736 INFO L168 Benchmark]: Witness Printer took 28.47 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 12:36:43,738 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 163.34 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 60.53 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: -172.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.59 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 293.64 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 549.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 28.47 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: 0.4s, 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...