./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test_union_cast-2.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-2.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 c0b52ca6f506b754b9ab96f64f1e5708d2849337 ................................................................................................................................................................................................................................................... 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-2.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 c0b52ca6f506b754b9ab96f64f1e5708d2849337 .............................................................................................................................................................................................................................................................................................................................. 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 17:59:20,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:59:20,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:59:20,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:59:20,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:59:20,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:59:20,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:59:20,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:59:20,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:59:20,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:59:20,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:59:20,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:59:20,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:59:20,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:59:20,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:59:20,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:59:20,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:59:20,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:59:20,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:59:20,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:59:20,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:59:20,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:59:20,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:59:20,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:59:20,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:59:20,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:59:20,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:59:20,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:59:20,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:59:20,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:59:20,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:59:20,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:59:20,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:59:20,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:59:20,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:59:20,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:59:20,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:59:20,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:59:20,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:59:20,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:59:20,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:59:20,878 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:59:20,892 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:59:20,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:59:20,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:59:20,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:59:20,895 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:59:20,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:59:20,895 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:59:20,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:59:20,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:59:20,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:59:20,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:59:20,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:59:20,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:59:20,897 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:59:20,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:59:20,898 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:59:20,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:59:20,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:59:20,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:59:20,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:59:20,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:59:20,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:59:20,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:59:20,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:59:20,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:59:20,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:59:20,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:59:20,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:59:20,901 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:59:20,902 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 -> c0b52ca6f506b754b9ab96f64f1e5708d2849337 [2020-07-28 17:59:21,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:59:21,215 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:59:21,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:59:21,220 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:59:21,220 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:59:21,221 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_union_cast-2.i [2020-07-28 17:59:21,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e632ef1b/ba0e8c7299d84f75a0b8b1328ae07f32/FLAGcc7238a75 [2020-07-28 17:59:21,763 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:59:21,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_union_cast-2.i [2020-07-28 17:59:21,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e632ef1b/ba0e8c7299d84f75a0b8b1328ae07f32/FLAGcc7238a75 [2020-07-28 17:59:22,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e632ef1b/ba0e8c7299d84f75a0b8b1328ae07f32 [2020-07-28 17:59:22,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:59:22,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:59:22,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:59:22,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:59:22,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:59:22,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:59:22" (1/1) ... [2020-07-28 17:59:22,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b5a801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22, skipping insertion in model container [2020-07-28 17:59:22,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:59:22" (1/1) ... [2020-07-28 17:59:22,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:59:22,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:59:22,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:59:22,350 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:59:22,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:59:22,384 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:59:22,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22 WrapperNode [2020-07-28 17:59:22,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:59:22,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:59:22,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:59:22,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:59:22,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22" (1/1) ... [2020-07-28 17:59:22,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22" (1/1) ... [2020-07-28 17:59:22,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:59:22,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:59:22,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:59:22,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:59:22,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22" (1/1) ... [2020-07-28 17:59:22,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22" (1/1) ... [2020-07-28 17:59:22,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22" (1/1) ... [2020-07-28 17:59:22,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22" (1/1) ... [2020-07-28 17:59:22,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22" (1/1) ... [2020-07-28 17:59:22,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22" (1/1) ... [2020-07-28 17:59:22,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22" (1/1) ... [2020-07-28 17:59:22,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:59:22,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:59:22,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:59:22,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:59:22,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22" (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 17:59:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:59:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:59:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:59:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:59:22,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:59:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:59:22,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:59:22,771 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:59:22,771 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-28 17:59:22,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:22 BoogieIcfgContainer [2020-07-28 17:59:22,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:59:22,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:59:22,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:59:22,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:59:22,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:59:22" (1/3) ... [2020-07-28 17:59:22,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19273e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:59:22, skipping insertion in model container [2020-07-28 17:59:22,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:22" (2/3) ... [2020-07-28 17:59:22,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19273e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:59:22, skipping insertion in model container [2020-07-28 17:59:22,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:22" (3/3) ... [2020-07-28 17:59:22,784 INFO L109 eAbstractionObserver]: Analyzing ICFG test_union_cast-2.i [2020-07-28 17:59:22,795 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:59:22,803 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:59:22,822 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:59:22,855 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:59:22,856 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:59:22,856 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:59:22,856 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:59:22,857 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:59:22,857 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:59:22,857 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:59:22,857 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:59:22,877 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-07-28 17:59:22,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-28 17:59:22,883 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:59:22,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-28 17:59:22,884 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:59:22,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:59:22,891 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-07-28 17:59:22,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:59:22,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190667175] [2020-07-28 17:59:22,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:59:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:59:23,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:59:23,057 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 17:59:23,064 INFO L168 Benchmark]: Toolchain (without parser) took 913.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -129.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:23,065 INFO L168 Benchmark]: CDTParser took 0.33 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 17:59:23,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.30 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:23,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:23,068 INFO L168 Benchmark]: Boogie Preprocessor took 20.76 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 17:59:23,069 INFO L168 Benchmark]: RCFGBuilder took 268.20 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:23,070 INFO L168 Benchmark]: TraceAbstraction took 283.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:23,075 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 0.33 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 233.30 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 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 99.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.76 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 268.20 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 283.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 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 17:59:25,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:59:25,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:59:25,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:59:25,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:59:25,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:59:25,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:59:25,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:59:25,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:59:25,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:59:25,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:59:25,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:59:25,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:59:25,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:59:25,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:59:25,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:59:25,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:59:25,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:59:25,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:59:25,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:59:25,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:59:25,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:59:25,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:59:25,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:59:25,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:59:25,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:59:25,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:59:25,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:59:25,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:59:25,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:59:25,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:59:25,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:59:25,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:59:25,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:59:25,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:59:25,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:59:25,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:59:25,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:59:25,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:59:25,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:59:25,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:59:25,221 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:59:25,250 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:59:25,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:59:25,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:59:25,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:59:25,254 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:59:25,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:59:25,255 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:59:25,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:59:25,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:59:25,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:59:25,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:59:25,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:59:25,257 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:59:25,258 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:59:25,258 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:59:25,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:59:25,259 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:59:25,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:59:25,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:59:25,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:59:25,260 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:59:25,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:59:25,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:59:25,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:59:25,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:59:25,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:59:25,262 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:59:25,262 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:59:25,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:59:25,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:59:25,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:59:25,263 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 -> c0b52ca6f506b754b9ab96f64f1e5708d2849337 [2020-07-28 17:59:25,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:59:25,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:59:25,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:59:25,582 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:59:25,582 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:59:25,583 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_union_cast-2.i [2020-07-28 17:59:25,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c780f670/5ebe1905ba134482b25bb2e6af7491fd/FLAG2a170537c [2020-07-28 17:59:26,156 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:59:26,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_union_cast-2.i [2020-07-28 17:59:26,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c780f670/5ebe1905ba134482b25bb2e6af7491fd/FLAG2a170537c [2020-07-28 17:59:26,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c780f670/5ebe1905ba134482b25bb2e6af7491fd [2020-07-28 17:59:26,501 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:59:26,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:59:26,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:59:26,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:59:26,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:59:26,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:59:26" (1/1) ... [2020-07-28 17:59:26,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74804181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26, skipping insertion in model container [2020-07-28 17:59:26,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:59:26" (1/1) ... [2020-07-28 17:59:26,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:59:26,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:59:26,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:59:26,758 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:59:26,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:59:26,802 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:59:26,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26 WrapperNode [2020-07-28 17:59:26,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:59:26,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:59:26,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:59:26,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:59:26,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26" (1/1) ... [2020-07-28 17:59:26,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26" (1/1) ... [2020-07-28 17:59:26,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:59:26,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:59:26,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:59:26,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:59:26,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26" (1/1) ... [2020-07-28 17:59:26,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26" (1/1) ... [2020-07-28 17:59:26,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26" (1/1) ... [2020-07-28 17:59:26,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26" (1/1) ... [2020-07-28 17:59:26,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26" (1/1) ... [2020-07-28 17:59:26,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26" (1/1) ... [2020-07-28 17:59:26,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26" (1/1) ... [2020-07-28 17:59:26,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:59:26,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:59:26,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:59:26,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:59:26,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26" (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 17:59:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-07-28 17:59:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:59:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:59:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:59:27,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:59:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:59:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:59:27,237 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:59:27,238 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-28 17:59:27,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:27 BoogieIcfgContainer [2020-07-28 17:59:27,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:59:27,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:59:27,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:59:27,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:59:27,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:59:26" (1/3) ... [2020-07-28 17:59:27,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296f4baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:59:27, skipping insertion in model container [2020-07-28 17:59:27,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:26" (2/3) ... [2020-07-28 17:59:27,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296f4baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:59:27, skipping insertion in model container [2020-07-28 17:59:27,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:27" (3/3) ... [2020-07-28 17:59:27,254 INFO L109 eAbstractionObserver]: Analyzing ICFG test_union_cast-2.i [2020-07-28 17:59:27,269 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:59:27,278 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:59:27,306 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:59:27,374 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:59:27,375 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:59:27,375 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:59:27,375 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:59:27,375 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:59:27,375 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:59:27,376 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:59:27,376 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:59:27,398 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-07-28 17:59:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-28 17:59:27,404 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:59:27,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-28 17:59:27,405 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:59:27,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:59:27,410 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-07-28 17:59:27,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:59:27,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763887842] [2020-07-28 17:59:27,422 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 17:59:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:59:27,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-28 17:59:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:59:27,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:59:27,587 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:59:27,636 INFO L280 TraceCheckUtils]: 0: Hoare triple {12#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~CURRENTLY_UNKNOWN~0 := 0bv32; {12#true} is VALID [2020-07-28 17:59:27,640 INFO L280 TraceCheckUtils]: 1: Hoare triple {12#true} havoc main_#res;havoc main_#t~mem0, main_~#llvm_cbe_var~0.base, main_~#llvm_cbe_var~0.offset;call main_~#llvm_cbe_var~0.base, main_~#llvm_cbe_var~0.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(~to_fp~DOUBLE(currentRoundingMode, 20.0), main_~#llvm_cbe_var~0.base, main_~#llvm_cbe_var~0.offset, 8bv32);call write~intINTTYPE4(10bv32, main_~#llvm_cbe_var~0.base, main_~#llvm_cbe_var~0.offset, 4bv32);call main_#t~mem0 := read~intINTTYPE4(main_~#llvm_cbe_var~0.base, main_~#llvm_cbe_var~0.offset, 4bv32);__VERIFIER_assert_#in~cond := (if 10bv32 == main_#t~mem0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {20#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 17:59:27,641 INFO L280 TraceCheckUtils]: 2: Hoare triple {20#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == __VERIFIER_assert_~cond; {13#false} is VALID [2020-07-28 17:59:27,642 INFO L280 TraceCheckUtils]: 3: Hoare triple {13#false} assume !false; {13#false} is VALID [2020-07-28 17:59:27,644 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 17:59:27,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:59:27,689 INFO L280 TraceCheckUtils]: 3: Hoare triple {13#false} assume !false; {13#false} is VALID [2020-07-28 17:59:27,691 INFO L280 TraceCheckUtils]: 2: Hoare triple {30#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} assume 0bv32 == __VERIFIER_assert_~cond; {13#false} is VALID [2020-07-28 17:59:27,694 INFO L280 TraceCheckUtils]: 1: Hoare triple {12#true} havoc main_#res;havoc main_#t~mem0, main_~#llvm_cbe_var~0.base, main_~#llvm_cbe_var~0.offset;call main_~#llvm_cbe_var~0.base, main_~#llvm_cbe_var~0.offset := #Ultimate.allocOnStack(8bv32);call write~intFLOATTYPE8(~to_fp~DOUBLE(currentRoundingMode, 20.0), main_~#llvm_cbe_var~0.base, main_~#llvm_cbe_var~0.offset, 8bv32);call write~intINTTYPE4(10bv32, main_~#llvm_cbe_var~0.base, main_~#llvm_cbe_var~0.offset, 4bv32);call main_#t~mem0 := read~intINTTYPE4(main_~#llvm_cbe_var~0.base, main_~#llvm_cbe_var~0.offset, 4bv32);__VERIFIER_assert_#in~cond := (if 10bv32 == main_#t~mem0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {30#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} is VALID [2020-07-28 17:59:27,695 INFO L280 TraceCheckUtils]: 0: Hoare triple {12#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~CURRENTLY_UNKNOWN~0 := 0bv32; {12#true} is VALID [2020-07-28 17:59:27,696 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 17:59:27,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763887842] [2020-07-28 17:59:27,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:59:27,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-07-28 17:59:27,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829615333] [2020-07-28 17:59:27,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-07-28 17:59:27,708 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:59:27,712 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 17:59:27,731 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:59:27,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 17:59:27,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:59:27,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 17:59:27,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 17:59:27,745 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-07-28 17:59:27,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:59:27,802 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-07-28 17:59:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 17:59:27,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-07-28 17:59:27,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:59:27,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:59:27,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-07-28 17:59:27,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:59:27,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-07-28 17:59:27,810 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 12 transitions. [2020-07-28 17:59:27,845 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 17:59:27,852 INFO L225 Difference]: With dead ends: 13 [2020-07-28 17:59:27,853 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:59:27,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-28 17:59:27,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:59:27,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:59:27,880 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:59:27,881 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:27,882 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:27,882 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:27,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:59:27,883 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:59:27,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:59:27,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:59:27,883 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:59:27,884 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:27,884 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:27,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:59:27,884 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:59:27,884 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:59:27,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:59:27,885 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:59:27,885 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:59:27,885 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:59:27,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:59:27,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:59:27,887 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-07-28 17:59:27,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:59:27,888 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:59:27,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 17:59:27,888 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:59:27,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:59:28,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:59:28,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:59:28,155 INFO L264 CegarLoopResult]: At program point L3-2(lines 2 7) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-07-28 17:59:28,156 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:59:28,156 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:59:28,156 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:59:28,157 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:59:28,157 INFO L264 CegarLoopResult]: At program point L27(lines 22 28) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-07-28 17:59:28,158 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-07-28 17:59:28,158 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-28 17:59:28,158 INFO L268 CegarLoopResult]: For program point L3(lines 3 5) no Hoare annotation was computed. [2020-07-28 17:59:28,162 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:59:28,163 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:59:28,163 WARN L170 areAnnotationChecker]: L3 has no Hoare annotation [2020-07-28 17:59:28,163 WARN L170 areAnnotationChecker]: L3 has no Hoare annotation [2020-07-28 17:59:28,164 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-28 17:59:28,164 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-28 17:59:28,166 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:59:28,166 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:59:28,166 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:59:28,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:59:28 BoogieIcfgContainer [2020-07-28 17:59:28,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:59:28,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:59:28,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:59:28,189 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:59:28,190 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:27" (3/4) ... [2020-07-28 17:59:28,193 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:59:28,210 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-07-28 17:59:28,211 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 17:59:28,211 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:59:28,249 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:59:28,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:59:28,253 INFO L168 Benchmark]: Toolchain (without parser) took 1748.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -121.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:28,254 INFO L168 Benchmark]: CDTParser took 0.27 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 17:59:28,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.11 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:28,255 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -202.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:28,256 INFO L168 Benchmark]: Boogie Preprocessor took 32.16 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:28,257 INFO L168 Benchmark]: RCFGBuilder took 308.15 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:28,258 INFO L168 Benchmark]: TraceAbstraction took 933.48 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: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:28,258 INFO L168 Benchmark]: Witness Printer took 69.43 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 17:59:28,262 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 0.27 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 296.11 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 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 98.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -202.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.16 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 308.15 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 933.48 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: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. * Witness Printer took 69.43 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: - PositiveResult [Line: 4]: 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: 22]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 2]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - 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, 4 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 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, 39 SizeOfPredicates, 6 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 5 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...