./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i --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/ldv-regression/test_union_cast.c_1.i -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 014adfded3244f58999914f8fd9f9980a1efc2a4 ................................................................................................................................................................................................................................................... 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/ldv-regression/test_union_cast.c_1.i -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 014adfded3244f58999914f8fd9f9980a1efc2a4 ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:59:22,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:59:22,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:59:22,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:59:22,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:59:22,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:59:22,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:59:22,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:59:22,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:59:22,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:59:22,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:59:22,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:59:22,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:59:22,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:59:22,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:59:22,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:59:22,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:59:22,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:59:22,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:59:22,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:59:22,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:59:22,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:59:22,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:59:22,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:59:22,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:59:22,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:59:22,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:59:22,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:59:22,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:59:22,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:59:22,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:59:22,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:59:22,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:59:22,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:59:22,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:59:22,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:59:22,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:59:22,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:59:22,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:59:22,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:59:22,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:59:22,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:59:22,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:59:22,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:59:22,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:59:22,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:59:22,332 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:59:22,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:59:22,333 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:59:22,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:59:22,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:59:22,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:59:22,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:59:22,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:59:22,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:59:22,335 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:59:22,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:59:22,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:59:22,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:59:22,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:59:22,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:59:22,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:59:22,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:59:22,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:59:22,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:59:22,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:59:22,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:59:22,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:59:22,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:59:22,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:59:22,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:59:22,339 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 -> 014adfded3244f58999914f8fd9f9980a1efc2a4 [2020-07-28 17:59:22,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:59:22,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:59:22,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:59:22,684 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:59:22,685 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:59:22,686 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i [2020-07-28 17:59:22,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189e4df6f/e6bb2b2e5b1e4075906b754b4beb1dbe/FLAGd4b88d5d4 [2020-07-28 17:59:23,169 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:59:23,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i [2020-07-28 17:59:23,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189e4df6f/e6bb2b2e5b1e4075906b754b4beb1dbe/FLAGd4b88d5d4 [2020-07-28 17:59:23,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189e4df6f/e6bb2b2e5b1e4075906b754b4beb1dbe [2020-07-28 17:59:23,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:59:23,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:59:23,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:59:23,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:59:23,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:59:23,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:59:23" (1/1) ... [2020-07-28 17:59:23,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c34d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23, skipping insertion in model container [2020-07-28 17:59:23,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:59:23" (1/1) ... [2020-07-28 17:59:23,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:59:23,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:59:23,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:59:23,865 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:59:23,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:59:23,922 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:59:23,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23 WrapperNode [2020-07-28 17:59:23,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:59:23,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:59:23,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:59:23,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:59:23,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23" (1/1) ... [2020-07-28 17:59:23,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23" (1/1) ... [2020-07-28 17:59:24,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:59:24,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:59:24,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:59:24,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:59:24,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23" (1/1) ... [2020-07-28 17:59:24,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23" (1/1) ... [2020-07-28 17:59:24,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23" (1/1) ... [2020-07-28 17:59:24,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23" (1/1) ... [2020-07-28 17:59:24,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23" (1/1) ... [2020-07-28 17:59:24,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23" (1/1) ... [2020-07-28 17:59:24,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23" (1/1) ... [2020-07-28 17:59:24,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:59:24,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:59:24,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:59:24,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:59:24,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23" (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 17:59:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:59:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:59:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:59:24,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:59:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:59:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:59:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:59:24,320 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:59:24,320 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-28 17:59:24,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:24 BoogieIcfgContainer [2020-07-28 17:59:24,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:59:24,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:59:24,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:59:24,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:59:24,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:59:23" (1/3) ... [2020-07-28 17:59:24,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6992fbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:59:24, skipping insertion in model container [2020-07-28 17:59:24,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:23" (2/3) ... [2020-07-28 17:59:24,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6992fbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:59:24, skipping insertion in model container [2020-07-28 17:59:24,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:24" (3/3) ... [2020-07-28 17:59:24,334 INFO L109 eAbstractionObserver]: Analyzing ICFG test_union_cast.c_1.i [2020-07-28 17:59:24,345 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:59:24,352 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:59:24,374 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:59:24,408 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:59:24,408 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:59:24,409 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:59:24,409 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:59:24,409 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:59:24,410 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:59:24,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:59:24,410 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:59:24,428 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-07-28 17:59:24,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-28 17:59:24,434 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:59:24,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-28 17:59:24,436 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:59:24,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:59:24,443 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-07-28 17:59:24,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:59:24,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131294673] [2020-07-28 17:59:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:59:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:59:24,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:59:24,611 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 17:59:24,617 INFO L168 Benchmark]: Toolchain (without parser) took 1019.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -143.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:24,618 INFO L168 Benchmark]: CDTParser took 0.26 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 17:59:24,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.43 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 946.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:24,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:24,621 INFO L168 Benchmark]: Boogie Preprocessor took 24.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:59:24,622 INFO L168 Benchmark]: RCFGBuilder took 276.59 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: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:24,622 INFO L168 Benchmark]: TraceAbstraction took 288.07 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: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:24,626 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 0.26 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 324.43 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 946.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 98.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 276.59 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: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 288.07 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: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:59:26,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:59:26,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:59:26,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:59:26,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:59:26,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:59:26,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:59:26,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:59:26,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:59:26,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:59:26,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:59:26,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:59:26,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:59:26,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:59:26,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:59:26,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:59:26,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:59:26,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:59:26,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:59:26,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:59:26,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:59:26,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:59:26,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:59:26,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:59:26,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:59:26,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:59:26,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:59:26,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:59:26,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:59:26,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:59:26,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:59:26,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:59:26,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:59:26,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:59:26,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:59:26,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:59:26,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:59:26,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:59:26,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:59:26,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:59:26,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:59:26,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:59:26,627 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:59:26,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:59:26,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:59:26,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:59:26,629 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:59:26,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:59:26,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:59:26,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:59:26,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:59:26,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:59:26,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:59:26,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:59:26,631 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:59:26,631 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:59:26,632 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:59:26,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:59:26,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:59:26,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:59:26,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:59:26,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:59:26,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:59:26,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:59:26,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:59:26,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:59:26,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:59:26,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:59:26,634 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:59:26,634 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:59:26,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:59:26,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:59:26,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:59:26,635 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 -> 014adfded3244f58999914f8fd9f9980a1efc2a4 [2020-07-28 17:59:26,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:59:26,963 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:59:26,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:59:26,968 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:59:26,969 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:59:26,970 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i [2020-07-28 17:59:27,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c93e3346/895680691e304713a4c4dce506c26312/FLAGdfeba806c [2020-07-28 17:59:27,430 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:59:27,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i [2020-07-28 17:59:27,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c93e3346/895680691e304713a4c4dce506c26312/FLAGdfeba806c [2020-07-28 17:59:27,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c93e3346/895680691e304713a4c4dce506c26312 [2020-07-28 17:59:27,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:59:27,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:59:27,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:59:27,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:59:27,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:59:27,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:59:27" (1/1) ... [2020-07-28 17:59:27,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c34d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:27, skipping insertion in model container [2020-07-28 17:59:27,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:59:27" (1/1) ... [2020-07-28 17:59:27,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:59:27,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:59:28,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:59:28,066 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:59:28,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:59:28,116 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:59:28,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:28 WrapperNode [2020-07-28 17:59:28,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:59:28,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:59:28,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:59:28,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:59:28,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:28" (1/1) ... [2020-07-28 17:59:28,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:28" (1/1) ... [2020-07-28 17:59:28,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:59:28,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:59:28,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:59:28,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:59:28,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:28" (1/1) ... [2020-07-28 17:59:28,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:28" (1/1) ... [2020-07-28 17:59:28,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:28" (1/1) ... [2020-07-28 17:59:28,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:28" (1/1) ... [2020-07-28 17:59:28,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:28" (1/1) ... [2020-07-28 17:59:28,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:28" (1/1) ... [2020-07-28 17:59:28,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:28" (1/1) ... [2020-07-28 17:59:28,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:59:28,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:59:28,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:59:28,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:59:28,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:28" (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 17:59:28,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:59:28,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-07-28 17:59:28,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:59:28,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:59:28,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:59:28,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:59:28,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:59:28,581 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:59:28,581 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-28 17:59:28,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:28 BoogieIcfgContainer [2020-07-28 17:59:28,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:59:28,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:59:28,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:59:28,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:59:28,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:59:27" (1/3) ... [2020-07-28 17:59:28,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62483796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:59:28, skipping insertion in model container [2020-07-28 17:59:28,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:28" (2/3) ... [2020-07-28 17:59:28,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62483796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:59:28, skipping insertion in model container [2020-07-28 17:59:28,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:28" (3/3) ... [2020-07-28 17:59:28,594 INFO L109 eAbstractionObserver]: Analyzing ICFG test_union_cast.c_1.i [2020-07-28 17:59:28,605 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:59:28,612 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:59:28,628 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:59:28,657 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:59:28,658 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:59:28,658 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:59:28,658 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:59:28,659 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:59:28,659 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:59:28,659 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:59:28,659 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:59:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-07-28 17:59:28,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-28 17:59:28,685 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:59:28,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-28 17:59:28,687 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:59:28,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:59:28,696 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-07-28 17:59:28,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:59:28,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353875963] [2020-07-28 17:59:28,715 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 17:59:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:59:28,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-28 17:59:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:59:28,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:59:28,956 INFO L280 TraceCheckUtils]: 0: Hoare triple {12#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {12#true} is VALID [2020-07-28 17:59:28,959 INFO L280 TraceCheckUtils]: 1: Hoare triple {12#true} havoc main_#res;havoc main_#t~mem0, main_~#var~0.base, main_~#var~0.offset;call main_~#var~0.base, main_~#var~0.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(~to_fp~DOUBLE(currentRoundingMode, 20.0), main_~#var~0.base, main_~#var~0.offset, 8bv32);call write~intINTTYPE4(10bv32, main_~#var~0.base, main_~#var~0.offset, 4bv32);call main_#t~mem0 := read~intINTTYPE4(main_~#var~0.base, main_~#var~0.offset, 4bv32); {20#(= (bvadd |ULTIMATE.start_main_#t~mem0| (_ bv4294967286 32)) (_ bv0 32))} is VALID [2020-07-28 17:59:28,961 INFO L280 TraceCheckUtils]: 2: Hoare triple {20#(= (bvadd |ULTIMATE.start_main_#t~mem0| (_ bv4294967286 32)) (_ bv0 32))} assume !(10bv32 == main_#t~mem0); {13#false} is VALID [2020-07-28 17:59:28,961 INFO L280 TraceCheckUtils]: 3: Hoare triple {13#false} assume !false; {13#false} is VALID [2020-07-28 17:59:28,963 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 17:59:28,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:59:28,991 INFO L280 TraceCheckUtils]: 3: Hoare triple {13#false} assume !false; {13#false} is VALID [2020-07-28 17:59:28,997 INFO L280 TraceCheckUtils]: 2: Hoare triple {20#(= (bvadd |ULTIMATE.start_main_#t~mem0| (_ bv4294967286 32)) (_ bv0 32))} assume !(10bv32 == main_#t~mem0); {13#false} is VALID [2020-07-28 17:59:29,007 INFO L280 TraceCheckUtils]: 1: Hoare triple {12#true} havoc main_#res;havoc main_#t~mem0, main_~#var~0.base, main_~#var~0.offset;call main_~#var~0.base, main_~#var~0.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(~to_fp~DOUBLE(currentRoundingMode, 20.0), main_~#var~0.base, main_~#var~0.offset, 8bv32);call write~intINTTYPE4(10bv32, main_~#var~0.base, main_~#var~0.offset, 4bv32);call main_#t~mem0 := read~intINTTYPE4(main_~#var~0.base, main_~#var~0.offset, 4bv32); {20#(= (bvadd |ULTIMATE.start_main_#t~mem0| (_ bv4294967286 32)) (_ bv0 32))} is VALID [2020-07-28 17:59:29,008 INFO L280 TraceCheckUtils]: 0: Hoare triple {12#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {12#true} is VALID [2020-07-28 17:59:29,009 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 17:59:29,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353875963] [2020-07-28 17:59:29,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:59:29,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-07-28 17:59:29,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731393927] [2020-07-28 17:59:29,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-28 17:59:29,028 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:59:29,033 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 17:59:29,056 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:59:29,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 17:59:29,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:59:29,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 17:59:29,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 17:59:29,069 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-07-28 17:59:29,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:59:29,123 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-07-28 17:59:29,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 17:59:29,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-28 17:59:29,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:59:29,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 17:59:29,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-07-28 17:59:29,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 17:59:29,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-07-28 17:59:29,140 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 12 transitions. [2020-07-28 17:59:29,171 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:59:29,177 INFO L225 Difference]: With dead ends: 13 [2020-07-28 17:59:29,178 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:59:29,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 17:59:29,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:59:29,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:59:29,206 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:59:29,207 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:29,207 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:29,208 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:29,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:59:29,209 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:59:29,209 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:59:29,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:59:29,210 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:59:29,210 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:29,210 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:29,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:59:29,211 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:59:29,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:59:29,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:59:29,212 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:59:29,212 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:59:29,212 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:59:29,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:59:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:59:29,214 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-07-28 17:59:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:59:29,214 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:59:29,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 17:59:29,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:59:29,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:59:29,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:59:29,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:59:29,477 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:59:29,477 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:59:29,478 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:59:29,478 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:59:29,478 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-07-28 17:59:29,478 INFO L271 CegarLoopResult]: At program point L41(lines 29 42) the Hoare annotation is: true [2020-07-28 17:59:29,479 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-07-28 17:59:29,479 INFO L268 CegarLoopResult]: For program point L4(lines 1 42) no Hoare annotation was computed. [2020-07-28 17:59:29,479 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-28 17:59:29,487 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:59:29,487 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:59:29,487 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-28 17:59:29,487 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-28 17:59:29,488 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-28 17:59:29,488 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-28 17:59:29,488 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-28 17:59:29,488 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:59:29,489 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:59:29,489 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 17:59:29,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:59:29 BoogieIcfgContainer [2020-07-28 17:59:29,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:59:29,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:59:29,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:59:29,504 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:59:29,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:28" (3/4) ... [2020-07-28 17:59:29,509 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:59:29,523 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-07-28 17:59:29,523 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 17:59:29,523 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:59:29,566 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:59:29,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:59:29,570 INFO L168 Benchmark]: Toolchain (without parser) took 1701.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -108.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:29,571 INFO L168 Benchmark]: CDTParser took 0.19 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 17:59:29,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.09 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 940.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:29,573 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -196.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:29,573 INFO L168 Benchmark]: Boogie Preprocessor took 62.47 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 17:59:29,574 INFO L168 Benchmark]: RCFGBuilder took 302.43 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:29,575 INFO L168 Benchmark]: TraceAbstraction took 916.73 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: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:29,576 INFO L168 Benchmark]: Witness Printer took 63.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:29,580 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 0.19 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 247.09 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 940.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 101.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -196.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.47 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. * RCFGBuilder took 302.43 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 916.73 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: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. * Witness Printer took 63.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 1 SDslu, 3 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 4 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 3 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 correct! Received shutdown request...