./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/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: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/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 0.1.23-5842f4b [2018-11-18 13:43:19,542 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:43:19,544 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:43:19,552 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:43:19,552 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:43:19,553 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:43:19,553 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:43:19,555 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:43:19,556 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:43:19,557 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:43:19,557 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:43:19,557 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:43:19,558 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:43:19,559 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:43:19,559 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:43:19,560 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:43:19,560 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:43:19,561 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:43:19,563 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:43:19,564 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:43:19,565 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:43:19,566 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:43:19,568 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:43:19,568 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:43:19,568 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:43:19,569 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:43:19,569 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:43:19,570 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:43:19,571 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:43:19,572 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:43:19,572 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:43:19,572 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:43:19,572 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:43:19,573 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:43:19,573 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:43:19,574 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:43:19,574 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 13:43:19,583 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:43:19,583 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:43:19,584 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:43:19,584 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 13:43:19,584 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:43:19,584 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:43:19,584 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 13:43:19,585 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:43:19,585 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:43:19,585 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:43:19,585 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:43:19,585 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:43:19,585 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:43:19,585 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:43:19,586 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:43:19,586 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:43:19,586 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:43:19,586 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:43:19,586 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:43:19,586 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:43:19,586 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:43:19,587 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:43:19,587 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:43:19,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:43:19,587 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:43:19,587 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:43:19,587 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:43:19,587 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 13:43:19,587 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:43:19,588 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:43:19,588 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/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 [2018-11-18 13:43:19,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:43:19,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:43:19,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:43:19,622 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:43:19,622 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:43:19,623 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2018-11-18 13:43:19,659 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/data/eac34994e/b143b727fe714f41a0cc4cc66d41eb2e/FLAG797014747 [2018-11-18 13:43:19,952 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:43:19,953 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/sv-benchmarks/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2018-11-18 13:43:19,956 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/data/eac34994e/b143b727fe714f41a0cc4cc66d41eb2e/FLAG797014747 [2018-11-18 13:43:19,965 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/data/eac34994e/b143b727fe714f41a0cc4cc66d41eb2e [2018-11-18 13:43:19,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:43:19,967 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 13:43:19,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:43:19,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:43:19,970 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:43:19,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:43:19" (1/1) ... [2018-11-18 13:43:19,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c31600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:19, skipping insertion in model container [2018-11-18 13:43:19,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:43:19" (1/1) ... [2018-11-18 13:43:19,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:43:19,988 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:43:20,098 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:43:20,100 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:43:20,112 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:43:20,123 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:43:20,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:20 WrapperNode [2018-11-18 13:43:20,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:43:20,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:43:20,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:43:20,124 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:43:20,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:20" (1/1) ... [2018-11-18 13:43:20,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:20" (1/1) ... [2018-11-18 13:43:20,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:20" (1/1) ... [2018-11-18 13:43:20,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:20" (1/1) ... [2018-11-18 13:43:20,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:20" (1/1) ... [2018-11-18 13:43:20,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:20" (1/1) ... [2018-11-18 13:43:20,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:20" (1/1) ... [2018-11-18 13:43:20,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:43:20,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:43:20,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:43:20,147 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:43:20,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/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 [2018-11-18 13:43:20,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:43:20,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:43:20,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 13:43:20,225 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-11-18 13:43:20,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:43:20,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 13:43:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 13:43:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 13:43:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 13:43:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-11-18 13:43:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:43:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 13:43:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 13:43:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 13:43:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:43:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:43:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:43:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:43:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 13:43:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 13:43:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 13:43:20,350 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:43:20,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:43:20 BoogieIcfgContainer [2018-11-18 13:43:20,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:43:20,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:43:20,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:43:20,354 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:43:20,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:43:19" (1/3) ... [2018-11-18 13:43:20,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbbb4a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:43:20, skipping insertion in model container [2018-11-18 13:43:20,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:20" (2/3) ... [2018-11-18 13:43:20,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbbb4a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:43:20, skipping insertion in model container [2018-11-18 13:43:20,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:43:20" (3/3) ... [2018-11-18 13:43:20,357 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose_false-unreach-call_true-termination.c [2018-11-18 13:43:20,365 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:43:20,372 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:43:20,386 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:43:20,410 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:43:20,411 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:43:20,411 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:43:20,411 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:43:20,411 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:43:20,411 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:43:20,412 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:43:20,412 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:43:20,412 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:43:20,426 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-18 13:43:20,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 13:43:20,430 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:43:20,431 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:43:20,432 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:43:20,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:43:20,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1809195508, now seen corresponding path program 1 times [2018-11-18 13:43:20,438 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:43:20,439 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:43:20,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:43:20,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:43:20,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:43:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:43:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:43:20,549 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 13:43:20,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:43:20 BoogieIcfgContainer [2018-11-18 13:43:20,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:43:20,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:43:20,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:43:20,568 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:43:20,569 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:43:20" (3/4) ... [2018-11-18 13:43:20,573 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 13:43:20,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:43:20,573 INFO L168 Benchmark]: Toolchain (without parser) took 606.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -132.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:43:20,575 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:43:20,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.83 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 944.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:43:20,576 INFO L168 Benchmark]: Boogie Preprocessor took 22.63 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:43:20,576 INFO L168 Benchmark]: RCFGBuilder took 204.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:43:20,576 INFO L168 Benchmark]: TraceAbstraction took 216.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 13:43:20,577 INFO L168 Benchmark]: Witness Printer took 4.54 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. [2018-11-18 13:43:20,580 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 155.83 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 944.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.63 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 204.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 216.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 22, overapproximation of bitwiseXor at line 21. Possible FailurePath: [L27] int a; [L28] double r; [L30] a = __VERIFIER_nondet_int() [L33] CALL, EXPR cast(a) VAL [\old(i)=0] [L17] FCALL union u x, y; [L18] FCALL x.i[0] = 0x43300000 [L19] EXPR, FCALL x.i[0] [L19] FCALL y.i[0] = x.i[0] [L20] FCALL x.i[1] = 0x80000000 [L21] EXPR, FCALL x.i[1] [L21] FCALL y.i[1] = i ^ x.i[1] [L22] EXPR, FCALL y.d [L22] EXPR, FCALL x.d [L22] return y.d - x.d; [L22] return y.d - x.d; [L22] RET return y.d - x.d; VAL [\old(i)=0, i=0] [L33] EXPR cast(a) VAL [a=0, cast(a)=1127219205] [L33] r = cast(a) [L34] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-5842f4b [2018-11-18 13:43:22,000 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:43:22,001 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:43:22,009 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:43:22,009 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:43:22,010 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:43:22,011 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:43:22,012 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:43:22,013 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:43:22,013 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:43:22,014 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:43:22,014 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:43:22,015 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:43:22,016 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:43:22,016 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:43:22,017 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:43:22,017 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:43:22,019 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:43:22,020 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:43:22,021 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:43:22,022 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:43:22,023 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:43:22,024 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:43:22,025 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:43:22,025 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:43:22,025 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:43:22,027 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:43:22,027 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:43:22,028 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:43:22,028 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:43:22,028 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:43:22,029 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:43:22,029 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:43:22,029 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:43:22,030 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:43:22,031 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:43:22,031 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 13:43:22,041 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:43:22,041 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:43:22,041 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:43:22,042 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 13:43:22,042 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:43:22,042 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:43:22,042 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 13:43:22,042 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:43:22,043 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:43:22,043 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:43:22,043 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:43:22,043 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:43:22,043 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:43:22,043 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:43:22,043 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 13:43:22,043 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 13:43:22,044 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:43:22,044 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:43:22,044 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:43:22,044 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:43:22,044 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:43:22,044 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:43:22,044 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:43:22,045 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:43:22,045 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:43:22,045 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:43:22,045 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:43:22,045 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:43:22,045 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 13:43:22,045 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:43:22,045 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 13:43:22,046 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 13:43:22,048 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/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 [2018-11-18 13:43:22,077 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:43:22,086 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:43:22,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:43:22,090 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:43:22,090 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:43:22,091 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2018-11-18 13:43:22,122 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/data/81943b76b/44e5abdb655c4400829d26f3cd3889a5/FLAG1d035351d [2018-11-18 13:43:22,513 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:43:22,513 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/sv-benchmarks/c/float-benchs/cast_union_loose_false-unreach-call_true-termination.c [2018-11-18 13:43:22,516 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/data/81943b76b/44e5abdb655c4400829d26f3cd3889a5/FLAG1d035351d [2018-11-18 13:43:22,526 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/data/81943b76b/44e5abdb655c4400829d26f3cd3889a5 [2018-11-18 13:43:22,529 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:43:22,530 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 13:43:22,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:43:22,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:43:22,533 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:43:22,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:43:22" (1/1) ... [2018-11-18 13:43:22,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5aaada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22, skipping insertion in model container [2018-11-18 13:43:22,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:43:22" (1/1) ... [2018-11-18 13:43:22,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:43:22,557 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:43:22,676 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:43:22,680 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:43:22,698 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:43:22,713 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:43:22,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22 WrapperNode [2018-11-18 13:43:22,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:43:22,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:43:22,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:43:22,715 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:43:22,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ... [2018-11-18 13:43:22,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ... [2018-11-18 13:43:22,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ... [2018-11-18 13:43:22,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ... [2018-11-18 13:43:22,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ... [2018-11-18 13:43:22,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ... [2018-11-18 13:43:22,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ... [2018-11-18 13:43:22,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:43:22,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:43:22,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:43:22,742 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:43:22,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/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 [2018-11-18 13:43:22,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:43:22,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:43:22,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 13:43:22,816 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-11-18 13:43:22,816 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:43:22,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 13:43:22,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 13:43:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 13:43:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 13:43:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-11-18 13:43:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:43:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 13:43:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 13:43:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 13:43:22,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:43:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:43:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:43:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:43:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 13:43:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 13:43:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 13:43:23,039 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:43:23,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:43:23 BoogieIcfgContainer [2018-11-18 13:43:23,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:43:23,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:43:23,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:43:23,042 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:43:23,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:43:22" (1/3) ... [2018-11-18 13:43:23,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78602ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:43:23, skipping insertion in model container [2018-11-18 13:43:23,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (2/3) ... [2018-11-18 13:43:23,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78602ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:43:23, skipping insertion in model container [2018-11-18 13:43:23,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:43:23" (3/3) ... [2018-11-18 13:43:23,045 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose_false-unreach-call_true-termination.c [2018-11-18 13:43:23,051 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:43:23,057 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:43:23,068 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:43:23,088 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:43:23,088 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:43:23,089 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:43:23,089 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:43:23,089 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:43:23,089 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:43:23,089 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:43:23,089 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:43:23,089 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:43:23,098 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-18 13:43:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 13:43:23,102 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:43:23,102 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:43:23,104 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:43:23,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:43:23,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1809195508, now seen corresponding path program 1 times [2018-11-18 13:43:23,110 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:43:23,110 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/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 [2018-11-18 13:43:23,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:43:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:43:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:43:23,411 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 13:43:23,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:43:23 BoogieIcfgContainer [2018-11-18 13:43:23,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:43:23,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:43:23,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:43:23,430 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:43:23,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:43:23" (3/4) ... [2018-11-18 13:43:23,432 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 13:43:23,458 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ac21a3d8-1cc4-47fe-86f4-43f3773c80ad/bin-2019/uautomizer/witness.graphml [2018-11-18 13:43:23,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:43:23,459 INFO L168 Benchmark]: Toolchain (without parser) took 930.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 948.7 MB in the beginning and 1.0 GB in the end (delta: -97.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:43:23,460 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:43:23,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.50 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:43:23,460 INFO L168 Benchmark]: Boogie Preprocessor took 27.14 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:43:23,461 INFO L168 Benchmark]: RCFGBuilder took 297.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:43:23,461 INFO L168 Benchmark]: TraceAbstraction took 388.79 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2018-11-18 13:43:23,461 INFO L168 Benchmark]: Witness Printer took 29.73 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:43:23,463 INFO L336 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.50 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.14 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 297.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 388.79 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. * Witness Printer took 29.73 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: 7.0 MB). Peak memory consumption was 7.0 MB. 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() [L33] CALL, EXPR cast(a) VAL [\old(i)=4294959304] [L17] FCALL union u x, y; [L18] FCALL x.i[0] = 0x43300000 [L19] EXPR, FCALL x.i[0] [L19] FCALL y.i[0] = x.i[0] [L20] FCALL x.i[1] = 0x80000000 [L21] EXPR, FCALL x.i[1] [L21] FCALL y.i[1] = i ^ x.i[1] [L22] EXPR, FCALL y.d [L22] EXPR, FCALL x.d [L22] return y.d - x.d; [L22] return y.d - x.d; [L22] RET return y.d - x.d; VAL [\old(i)=4294959304, \result=NaN, i=4294959304] [L33] EXPR cast(a) VAL [a=4294959304, cast(a)=NaN] [L33] r = cast(a) [L34] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...