./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/cast_union_loose.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 018990a0c8ae3f67ec74b566f6a29250cbf2d32b ........................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 018990a0c8ae3f67ec74b566f6a29250cbf2d32b ............................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-8bd4bc6 [2020-07-28 17:22:21,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:22:21,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:22:21,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:22:21,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:22:21,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:22:21,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:22:21,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:22:21,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:22:21,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:22:21,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:22:21,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:22:21,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:22:21,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:22:21,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:22:21,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:22:21,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:22:21,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:22:21,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:22:21,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:22:21,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:22:21,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:22:21,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:22:21,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:22:21,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:22:21,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:22:21,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:22:21,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:22:21,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:22:21,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:22:21,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:22:21,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:22:21,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:22:21,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:22:21,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:22:21,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:22:21,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:22:21,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:22:21,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:22:21,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:22:21,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:22:21,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:22:21,314 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:22:21,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:22:21,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:22:21,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:22:21,318 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:22:21,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:22:21,318 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:22:21,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:22:21,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:22:21,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:22:21,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:22:21,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:22:21,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:22:21,321 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:22:21,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:22:21,322 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:22:21,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:22:21,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:22:21,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:22:21,323 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:22:21,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:22:21,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:22:21,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:22:21,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:22:21,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:22:21,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:22:21,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:22:21,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:22:21,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:22:21,326 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 018990a0c8ae3f67ec74b566f6a29250cbf2d32b [2020-07-28 17:22:21,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:22:21,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:22:21,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:22:21,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:22:21,656 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:22:21,657 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_union_loose.c [2020-07-28 17:22:21,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/514c2c031/bccc32fd5bfe4eba8d7e8e4285a53a69/FLAG604d7b31d [2020-07-28 17:22:22,255 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:22:22,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c [2020-07-28 17:22:22,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/514c2c031/bccc32fd5bfe4eba8d7e8e4285a53a69/FLAG604d7b31d [2020-07-28 17:22:22,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/514c2c031/bccc32fd5bfe4eba8d7e8e4285a53a69 [2020-07-28 17:22:22,582 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:22:22,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:22:22,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:22:22,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:22:22,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:22:22,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:22:22" (1/1) ... [2020-07-28 17:22:22,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6457a5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22, skipping insertion in model container [2020-07-28 17:22:22,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:22:22" (1/1) ... [2020-07-28 17:22:22,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:22:22,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:22:22,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:22:22,839 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:22:22,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:22:22,951 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:22:22,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22 WrapperNode [2020-07-28 17:22:22,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:22:22,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:22:22,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:22:22,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:22:22,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22" (1/1) ... [2020-07-28 17:22:22,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22" (1/1) ... [2020-07-28 17:22:23,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:22:23,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:22:23,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:22:23,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:22:23,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22" (1/1) ... [2020-07-28 17:22:23,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22" (1/1) ... [2020-07-28 17:22:23,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22" (1/1) ... [2020-07-28 17:22:23,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22" (1/1) ... [2020-07-28 17:22:23,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22" (1/1) ... [2020-07-28 17:22:23,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22" (1/1) ... [2020-07-28 17:22:23,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22" (1/1) ... [2020-07-28 17:22:23,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:22:23,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:22:23,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:22:23,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:22:23,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-07-28 17:22:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:22:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:22:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:22:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:22:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:22:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:22:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:22:23,468 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:22:23,468 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-07-28 17:22:23,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:22:23 BoogieIcfgContainer [2020-07-28 17:22:23,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:22:23,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:22:23,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:22:23,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:22:23,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:22:22" (1/3) ... [2020-07-28 17:22:23,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb68e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:22:23, skipping insertion in model container [2020-07-28 17:22:23,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:22" (2/3) ... [2020-07-28 17:22:23,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb68e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:22:23, skipping insertion in model container [2020-07-28 17:22:23,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:22:23" (3/3) ... [2020-07-28 17:22:23,481 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2020-07-28 17:22:23,492 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:22:23,499 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:22:23,513 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:22:23,533 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:22:23,534 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:22:23,534 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:22:23,534 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:22:23,534 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:22:23,534 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:22:23,534 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:22:23,534 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:22:23,547 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-07-28 17:22:23,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 17:22:23,555 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:22:23,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:22:23,556 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:22:23,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:22:23,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2020-07-28 17:22:23,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:22:23,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565439160] [2020-07-28 17:22:23,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:22:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:22:23,719 INFO L280 TraceCheckUtils]: 0: Hoare triple {15#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {15#true} is VALID [2020-07-28 17:22:23,723 INFO L280 TraceCheckUtils]: 1: Hoare triple {15#true} havoc main_#res;havoc main_#t~nondet4, main_#t~ret5, main_~a~0, main_~r~0;havoc main_~a~0;havoc main_~r~0;assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647;main_~a~0 := main_#t~nondet4;havoc main_#t~nondet4;assume_abort_if_not_#in~cond := (if main_~a~0 >= -10000 && main_~a~0 <= 10000 then 1 else 0);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; {15#true} is VALID [2020-07-28 17:22:23,726 INFO L280 TraceCheckUtils]: 2: Hoare triple {15#true} assume 0 == assume_abort_if_not_~cond;assume false; {16#false} is VALID [2020-07-28 17:22:23,726 INFO L280 TraceCheckUtils]: 3: Hoare triple {16#false} cast_#in~i := main_~a~0;havoc cast_#res;havoc cast_#t~mem0, cast_#t~mem1, cast_#t~mem2, cast_#t~mem3, cast_~i, cast_~#x~0.base, cast_~#x~0.offset, cast_~#y~0.base, cast_~#y~0.offset;cast_~i := cast_#in~i;call cast_~#x~0.base, cast_~#x~0.offset := #Ultimate.allocOnStack(8);call cast_~#y~0.base, cast_~#y~0.offset := #Ultimate.allocOnStack(8);call write~int(1127219200, cast_~#x~0.base, cast_~#x~0.offset, 4);call cast_#t~mem0 := read~int(cast_~#x~0.base, cast_~#x~0.offset, 4);call write~int(cast_#t~mem0, cast_~#y~0.base, cast_~#y~0.offset, 4);havoc cast_#t~mem0;call write~int(-2147483648, cast_~#x~0.base, 4 + cast_~#x~0.offset, 4);call cast_#t~mem1 := read~int(cast_~#x~0.base, 4 + cast_~#x~0.offset, 4);call write~int(~bitwiseXor(cast_~i, cast_#t~mem1), cast_~#y~0.base, 4 + cast_~#y~0.offset, 4);havoc cast_#t~mem1;call cast_#t~mem2 := read~real(cast_~#y~0.base, cast_~#y~0.offset, 8);call cast_#t~mem3 := read~real(cast_~#x~0.base, cast_~#x~0.offset, 8);cast_#res := ~someBinaryArithmeticDOUBLEoperation(cast_#t~mem2, cast_#t~mem3);havoc cast_#t~mem3;havoc cast_#t~mem2;call ULTIMATE.dealloc(cast_~#x~0.base, cast_~#x~0.offset);havoc cast_~#x~0.base, cast_~#x~0.offset;call ULTIMATE.dealloc(cast_~#y~0.base, cast_~#y~0.offset);havoc cast_~#y~0.base, cast_~#y~0.offset; {16#false} is VALID [2020-07-28 17:22:23,728 INFO L280 TraceCheckUtils]: 4: Hoare triple {16#false} main_#t~ret5 := cast_#res;main_~r~0 := main_#t~ret5;havoc main_#t~ret5;__VERIFIER_assert_#in~cond := (if ~someBinaryDOUBLEComparisonOperation(main_~r~0, ~someUnaryDOUBLEoperation(10000.0)) && ~someBinaryDOUBLEComparisonOperation(main_~r~0, 10000.0) then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {16#false} is VALID [2020-07-28 17:22:23,728 INFO L280 TraceCheckUtils]: 5: Hoare triple {16#false} assume 0 == __VERIFIER_assert_~cond; {16#false} is VALID [2020-07-28 17:22:23,728 INFO L280 TraceCheckUtils]: 6: Hoare triple {16#false} assume !false; {16#false} is VALID [2020-07-28 17:22:23,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:22:23,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565439160] [2020-07-28 17:22:23,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:22:23,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:22:23,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921367727] [2020-07-28 17:22:23,745 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-07-28 17:22:23,747 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:22:23,751 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:22:23,825 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:22:23,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:22:23,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:22:23,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:22:23,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:22:23,840 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-07-28 17:22:23,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:22:23,890 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-07-28 17:22:23,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:22:23,890 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-07-28 17:22:23,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:22:23,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:22:23,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 22 transitions. [2020-07-28 17:22:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:22:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 22 transitions. [2020-07-28 17:22:23,901 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 22 transitions. [2020-07-28 17:22:23,940 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:22:23,950 INFO L225 Difference]: With dead ends: 21 [2020-07-28 17:22:23,951 INFO L226 Difference]: Without dead ends: 8 [2020-07-28 17:22:23,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:22:23,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-07-28 17:22:23,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-07-28 17:22:23,981 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:22:23,981 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states. Second operand 8 states. [2020-07-28 17:22:23,982 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 8 states. [2020-07-28 17:22:23,982 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2020-07-28 17:22:23,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:22:23,985 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-07-28 17:22:23,985 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-07-28 17:22:23,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:22:23,986 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:22:23,986 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 8 states. [2020-07-28 17:22:23,986 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2020-07-28 17:22:23,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:22:23,987 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-07-28 17:22:23,987 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-07-28 17:22:23,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:22:23,988 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:22:23,988 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:22:23,988 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:22:23,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:22:23,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-07-28 17:22:23,991 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-07-28 17:22:23,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:22:23,992 INFO L479 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-07-28 17:22:23,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:22:23,992 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-07-28 17:22:23,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 17:22:23,993 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:22:23,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:22:23,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:22:23,993 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:22:23,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:22:23,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2020-07-28 17:22:23,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:22:23,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981137470] [2020-07-28 17:22:23,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:22:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:22:24,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:22:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:22:24,094 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:22:24,120 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:22:24,120 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:22:24,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:22:24,146 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:22:24,147 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:22:24,147 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-28 17:22:24,147 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-28 17:22:24,148 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 17:22:24,148 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 17:22:24,148 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 17:22:24,148 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 17:22:24,149 WARN L170 areAnnotationChecker]: L11-1 has no Hoare annotation [2020-07-28 17:22:24,149 WARN L170 areAnnotationChecker]: L11-1 has no Hoare annotation [2020-07-28 17:22:24,149 WARN L170 areAnnotationChecker]: L11-3 has no Hoare annotation [2020-07-28 17:22:24,149 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-28 17:22:24,150 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:22:24,150 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:22:24,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:22:24 BoogieIcfgContainer [2020-07-28 17:22:24,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:22:24,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:22:24,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:22:24,154 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:22:24,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:22:23" (3/4) ... [2020-07-28 17:22:24,159 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 17:22:24,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:22:24,163 INFO L168 Benchmark]: Toolchain (without parser) took 1578.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -108.3 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:22:24,164 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:22:24,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:22:24,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:22:24,167 INFO L168 Benchmark]: Boogie Preprocessor took 27.54 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. [2020-07-28 17:22:24,168 INFO L168 Benchmark]: RCFGBuilder took 421.77 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:22:24,169 INFO L168 Benchmark]: TraceAbstraction took 679.39 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:22:24,170 INFO L168 Benchmark]: Witness Printer took 6.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:22:24,174 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 366.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.54 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. * RCFGBuilder took 421.77 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 679.39 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Witness Printer took 6.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 11]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 37, overapproximation of someBinaryArithmeticDOUBLEoperation at line 25, overapproximation of bitwiseXor at line 24. Possible FailurePath: [L30] int a; [L31] double r; [L33] a = __VERIFIER_nondet_int() [L9] COND FALSE !(!cond) [L20] union u x, y; [L21] x.i[0] = 0x43300000 [L22] EXPR x.i[0] [L22] y.i[0] = x.i[0] [L23] x.i[1] = 0x80000000 [L24] EXPR x.i[1] [L24] y.i[1] = i ^ x.i[1] [L25] EXPR y.d [L25] EXPR x.d [L25] return y.d - x.d; [L25] return y.d - x.d; [L25] return y.d - x.d; [L36] r = cast(a) [L11] COND TRUE !(cond) [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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 0.1.25-8bd4bc6 [2020-07-28 17:22:26,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:22:26,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:22:26,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:22:26,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:22:26,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:22:26,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:22:26,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:22:26,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:22:26,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:22:26,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:22:26,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:22:26,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:22:26,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:22:26,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:22:26,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:22:26,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:22:26,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:22:26,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:22:26,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:22:26,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:22:26,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:22:26,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:22:26,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:22:26,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:22:26,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:22:26,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:22:26,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:22:26,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:22:26,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:22:26,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:22:26,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:22:26,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:22:26,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:22:26,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:22:26,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:22:26,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:22:26,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:22:26,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:22:26,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:22:26,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:22:26,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:22:26,364 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:22:26,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:22:26,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:22:26,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:22:26,370 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:22:26,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:22:26,371 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:22:26,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:22:26,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:22:26,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:22:26,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:22:26,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:22:26,372 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:22:26,373 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:22:26,373 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:22:26,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:22:26,373 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:22:26,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:22:26,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:22:26,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:22:26,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:22:26,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:22:26,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:22:26,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:22:26,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:22:26,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:22:26,376 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:22:26,376 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:22:26,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:22:26,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:22:26,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:22:26,377 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 018990a0c8ae3f67ec74b566f6a29250cbf2d32b [2020-07-28 17:22:26,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:22:26,694 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:22:26,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:22:26,701 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:22:26,704 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:22:26,705 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_union_loose.c [2020-07-28 17:22:26,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3015bec46/692a6a618f4546439b82519669ad4aef/FLAG89a4b0577 [2020-07-28 17:22:27,247 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:22:27,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c [2020-07-28 17:22:27,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3015bec46/692a6a618f4546439b82519669ad4aef/FLAG89a4b0577 [2020-07-28 17:22:27,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3015bec46/692a6a618f4546439b82519669ad4aef [2020-07-28 17:22:27,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:22:27,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:22:27,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:22:27,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:22:27,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:22:27,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:22:27" (1/1) ... [2020-07-28 17:22:27,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1215c6cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:27, skipping insertion in model container [2020-07-28 17:22:27,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:22:27" (1/1) ... [2020-07-28 17:22:27,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:22:27,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:22:27,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:22:27,923 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:22:27,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:22:28,078 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:22:28,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:28 WrapperNode [2020-07-28 17:22:28,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:22:28,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:22:28,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:22:28,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:22:28,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:28" (1/1) ... [2020-07-28 17:22:28,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:28" (1/1) ... [2020-07-28 17:22:28,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:22:28,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:22:28,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:22:28,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:22:28,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:28" (1/1) ... [2020-07-28 17:22:28,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:28" (1/1) ... [2020-07-28 17:22:28,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:28" (1/1) ... [2020-07-28 17:22:28,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:28" (1/1) ... [2020-07-28 17:22:28,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:28" (1/1) ... [2020-07-28 17:22:28,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:28" (1/1) ... [2020-07-28 17:22:28,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:28" (1/1) ... [2020-07-28 17:22:28,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:22:28,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:22:28,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:22:28,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:22:28,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-07-28 17:22:28,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-07-28 17:22:28,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:22:28,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:22:28,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:22:28,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:22:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:22:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:22:28,752 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:22:28,753 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-07-28 17:22:28,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:22:28 BoogieIcfgContainer [2020-07-28 17:22:28,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:22:28,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:22:28,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:22:28,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:22:28,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:22:27" (1/3) ... [2020-07-28 17:22:28,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3788c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:22:28, skipping insertion in model container [2020-07-28 17:22:28,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:22:28" (2/3) ... [2020-07-28 17:22:28,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3788c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:22:28, skipping insertion in model container [2020-07-28 17:22:28,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:22:28" (3/3) ... [2020-07-28 17:22:28,769 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2020-07-28 17:22:28,782 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:22:28,790 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:22:28,806 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:22:28,832 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:22:28,833 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:22:28,833 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:22:28,833 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:22:28,834 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:22:28,834 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:22:28,834 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:22:28,835 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:22:28,849 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-07-28 17:22:28,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 17:22:28,856 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:22:28,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:22:28,859 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:22:28,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:22:28,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2020-07-28 17:22:28,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:22:28,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775897998] [2020-07-28 17:22:28,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-07-28 17:22:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:22:29,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:22:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:22:29,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:22:29,082 INFO L280 TraceCheckUtils]: 0: Hoare triple {15#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {15#true} is VALID [2020-07-28 17:22:29,083 INFO L280 TraceCheckUtils]: 1: Hoare triple {15#true} havoc main_#res;havoc main_#t~nondet4, main_#t~ret5, main_~a~0, main_~r~0;havoc main_~a~0;havoc main_~r~0;main_~a~0 := main_#t~nondet4;havoc main_#t~nondet4;assume_abort_if_not_#in~cond := (if ~bvsge32(main_~a~0, 4294957296bv32) && ~bvsle32(main_~a~0, 10000bv32) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; {15#true} is VALID [2020-07-28 17:22:29,085 INFO L280 TraceCheckUtils]: 2: Hoare triple {15#true} assume 0bv32 == assume_abort_if_not_~cond;assume false; {16#false} is VALID [2020-07-28 17:22:29,086 INFO L280 TraceCheckUtils]: 3: Hoare triple {16#false} cast_#in~i := main_~a~0;havoc cast_#res;havoc cast_#t~mem0, cast_#t~mem1, cast_#t~mem2, cast_#t~mem3, cast_~i, cast_~#x~0.base, cast_~#x~0.offset, cast_~#y~0.base, cast_~#y~0.offset;cast_~i := cast_#in~i;call cast_~#x~0.base, cast_~#x~0.offset := #Ultimate.allocOnStack(8bv32);call cast_~#y~0.base, cast_~#y~0.offset := #Ultimate.allocOnStack(8bv32);call write~intINTTYPE4(1127219200bv32, cast_~#x~0.base, cast_~#x~0.offset, 4bv32);call cast_#t~mem0 := read~intINTTYPE4(cast_~#x~0.base, cast_~#x~0.offset, 4bv32);call write~intINTTYPE4(cast_#t~mem0, cast_~#y~0.base, cast_~#y~0.offset, 4bv32);havoc cast_#t~mem0;call write~intINTTYPE4(2147483648bv32, cast_~#x~0.base, ~bvadd32(4bv32, cast_~#x~0.offset), 4bv32);call cast_#t~mem1 := read~intINTTYPE4(cast_~#x~0.base, ~bvadd32(4bv32, cast_~#x~0.offset), 4bv32);call write~intINTTYPE4(~bvxor32(cast_~i, cast_#t~mem1), cast_~#y~0.base, ~bvadd32(4bv32, cast_~#y~0.offset), 4bv32);havoc cast_#t~mem1;call cast_#t~mem2 := read~intFLOATTYPE8(cast_~#y~0.base, cast_~#y~0.offset, 8bv32);call cast_#t~mem3 := read~intFLOATTYPE8(cast_~#x~0.base, cast_~#x~0.offset, 8bv32);cast_#res := ~fp.sub~DOUBLE(currentRoundingMode, cast_#t~mem2, cast_#t~mem3);havoc cast_#t~mem2;havoc cast_#t~mem3;call ULTIMATE.dealloc(cast_~#x~0.base, cast_~#x~0.offset);havoc cast_~#x~0.base, cast_~#x~0.offset;call ULTIMATE.dealloc(cast_~#y~0.base, cast_~#y~0.offset);havoc cast_~#y~0.base, cast_~#y~0.offset; {16#false} is VALID [2020-07-28 17:22:29,087 INFO L280 TraceCheckUtils]: 4: Hoare triple {16#false} main_#t~ret5 := cast_#res;main_~r~0 := main_#t~ret5;havoc main_#t~ret5;__VERIFIER_assert_#in~cond := (if ~fp.geq~DOUBLE(main_~r~0, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 10000.0))) && ~fp.leq~DOUBLE(main_~r~0, ~to_fp~DOUBLE(currentRoundingMode, 10000.0)) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {16#false} is VALID [2020-07-28 17:22:29,087 INFO L280 TraceCheckUtils]: 5: Hoare triple {16#false} assume 0bv32 == __VERIFIER_assert_~cond; {16#false} is VALID [2020-07-28 17:22:29,087 INFO L280 TraceCheckUtils]: 6: Hoare triple {16#false} assume !false; {16#false} is VALID [2020-07-28 17:22:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:22:29,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:22:29,104 INFO L280 TraceCheckUtils]: 6: Hoare triple {16#false} assume !false; {16#false} is VALID [2020-07-28 17:22:29,105 INFO L280 TraceCheckUtils]: 5: Hoare triple {16#false} assume 0bv32 == __VERIFIER_assert_~cond; {16#false} is VALID [2020-07-28 17:22:29,105 INFO L280 TraceCheckUtils]: 4: Hoare triple {16#false} main_#t~ret5 := cast_#res;main_~r~0 := main_#t~ret5;havoc main_#t~ret5;__VERIFIER_assert_#in~cond := (if ~fp.geq~DOUBLE(main_~r~0, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 10000.0))) && ~fp.leq~DOUBLE(main_~r~0, ~to_fp~DOUBLE(currentRoundingMode, 10000.0)) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {16#false} is VALID [2020-07-28 17:22:29,106 INFO L280 TraceCheckUtils]: 3: Hoare triple {16#false} cast_#in~i := main_~a~0;havoc cast_#res;havoc cast_#t~mem0, cast_#t~mem1, cast_#t~mem2, cast_#t~mem3, cast_~i, cast_~#x~0.base, cast_~#x~0.offset, cast_~#y~0.base, cast_~#y~0.offset;cast_~i := cast_#in~i;call cast_~#x~0.base, cast_~#x~0.offset := #Ultimate.allocOnStack(8bv32);call cast_~#y~0.base, cast_~#y~0.offset := #Ultimate.allocOnStack(8bv32);call write~intINTTYPE4(1127219200bv32, cast_~#x~0.base, cast_~#x~0.offset, 4bv32);call cast_#t~mem0 := read~intINTTYPE4(cast_~#x~0.base, cast_~#x~0.offset, 4bv32);call write~intINTTYPE4(cast_#t~mem0, cast_~#y~0.base, cast_~#y~0.offset, 4bv32);havoc cast_#t~mem0;call write~intINTTYPE4(2147483648bv32, cast_~#x~0.base, ~bvadd32(4bv32, cast_~#x~0.offset), 4bv32);call cast_#t~mem1 := read~intINTTYPE4(cast_~#x~0.base, ~bvadd32(4bv32, cast_~#x~0.offset), 4bv32);call write~intINTTYPE4(~bvxor32(cast_~i, cast_#t~mem1), cast_~#y~0.base, ~bvadd32(4bv32, cast_~#y~0.offset), 4bv32);havoc cast_#t~mem1;call cast_#t~mem2 := read~intFLOATTYPE8(cast_~#y~0.base, cast_~#y~0.offset, 8bv32);call cast_#t~mem3 := read~intFLOATTYPE8(cast_~#x~0.base, cast_~#x~0.offset, 8bv32);cast_#res := ~fp.sub~DOUBLE(currentRoundingMode, cast_#t~mem2, cast_#t~mem3);havoc cast_#t~mem2;havoc cast_#t~mem3;call ULTIMATE.dealloc(cast_~#x~0.base, cast_~#x~0.offset);havoc cast_~#x~0.base, cast_~#x~0.offset;call ULTIMATE.dealloc(cast_~#y~0.base, cast_~#y~0.offset);havoc cast_~#y~0.base, cast_~#y~0.offset; {16#false} is VALID [2020-07-28 17:22:29,107 INFO L280 TraceCheckUtils]: 2: Hoare triple {15#true} assume 0bv32 == assume_abort_if_not_~cond;assume false; {16#false} is VALID [2020-07-28 17:22:29,108 INFO L280 TraceCheckUtils]: 1: Hoare triple {15#true} havoc main_#res;havoc main_#t~nondet4, main_#t~ret5, main_~a~0, main_~r~0;havoc main_~a~0;havoc main_~r~0;main_~a~0 := main_#t~nondet4;havoc main_#t~nondet4;assume_abort_if_not_#in~cond := (if ~bvsge32(main_~a~0, 4294957296bv32) && ~bvsle32(main_~a~0, 10000bv32) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond;assume_abort_if_not_~cond := assume_abort_if_not_#in~cond; {15#true} is VALID [2020-07-28 17:22:29,108 INFO L280 TraceCheckUtils]: 0: Hoare triple {15#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {15#true} is VALID [2020-07-28 17:22:29,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:22:29,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775897998] [2020-07-28 17:22:29,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:22:29,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:22:29,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649809033] [2020-07-28 17:22:29,119 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-07-28 17:22:29,121 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:22:29,125 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:22:29,180 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:22:29,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:22:29,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:22:29,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:22:29,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:22:29,194 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-07-28 17:22:29,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:22:29,464 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-07-28 17:22:29,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:22:29,464 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-07-28 17:22:29,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:22:29,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:22:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 22 transitions. [2020-07-28 17:22:29,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:22:29,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 22 transitions. [2020-07-28 17:22:29,475 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 22 transitions. [2020-07-28 17:22:29,596 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:22:29,607 INFO L225 Difference]: With dead ends: 21 [2020-07-28 17:22:29,607 INFO L226 Difference]: Without dead ends: 8 [2020-07-28 17:22:29,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:22:29,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-07-28 17:22:29,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-07-28 17:22:29,642 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:22:29,643 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states. Second operand 8 states. [2020-07-28 17:22:29,644 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 8 states. [2020-07-28 17:22:29,644 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2020-07-28 17:22:29,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:22:29,647 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-07-28 17:22:29,647 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-07-28 17:22:29,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:22:29,648 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:22:29,648 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 8 states. [2020-07-28 17:22:29,648 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2020-07-28 17:22:29,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:22:29,650 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-07-28 17:22:29,650 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-07-28 17:22:29,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:22:29,651 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:22:29,651 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:22:29,652 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:22:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:22:29,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-07-28 17:22:29,655 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-07-28 17:22:29,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:22:29,656 INFO L479 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-07-28 17:22:29,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:22:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-07-28 17:22:29,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 17:22:29,657 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:22:29,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:22:29,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:22:29,873 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:22:29,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:22:29,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2020-07-28 17:22:29,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:22:29,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739635945] [2020-07-28 17:22:29,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-07-28 17:22:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:22:30,087 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:22:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:22:30,236 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:22:30,272 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-07-28 17:22:30,272 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:22:30,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:22:30,499 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:22:30,499 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:22:30,499 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-28 17:22:30,499 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-28 17:22:30,500 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 17:22:30,500 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 17:22:30,500 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 17:22:30,500 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 17:22:30,500 WARN L170 areAnnotationChecker]: L11-1 has no Hoare annotation [2020-07-28 17:22:30,500 WARN L170 areAnnotationChecker]: L11-1 has no Hoare annotation [2020-07-28 17:22:30,501 WARN L170 areAnnotationChecker]: L11-3 has no Hoare annotation [2020-07-28 17:22:30,501 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-28 17:22:30,501 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:22:30,501 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:22:30,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:22:30 BoogieIcfgContainer [2020-07-28 17:22:30,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:22:30,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:22:30,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:22:30,504 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:22:30,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:22:28" (3/4) ... [2020-07-28 17:22:30,507 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 17:22:30,551 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:22:30,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:22:30,555 INFO L168 Benchmark]: Toolchain (without parser) took 2952.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 957.5 MB in the beginning and 1.0 GB in the end (delta: -83.3 MB). Peak memory consumption was 54.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:22:30,555 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:22:30,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:22:30,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.65 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. [2020-07-28 17:22:30,557 INFO L168 Benchmark]: Boogie Preprocessor took 37.02 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. [2020-07-28 17:22:30,558 INFO L168 Benchmark]: RCFGBuilder took 593.51 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:22:30,559 INFO L168 Benchmark]: TraceAbstraction took 1744.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:22:30,559 INFO L168 Benchmark]: Witness Printer took 47.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:22:30,563 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 473.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.02 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 593.51 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1744.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. * Witness Printer took 47.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L30] int a; [L31] double r; [L33] a = __VERIFIER_nondet_int() [L9] COND FALSE !(!cond) [L20] union u x, y; [L21] x.i[0] = 0x43300000 [L22] EXPR x.i[0] [L22] y.i[0] = x.i[0] [L23] x.i[1] = 0x80000000 [L24] EXPR x.i[1] [L24] y.i[1] = i ^ x.i[1] [L25] EXPR y.d [L25] EXPR x.d [L25] return y.d - x.d; [L25] return y.d - x.d; [L25] return y.d - x.d; [L36] r = cast(a) [L11] COND TRUE !(cond) [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...