./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector-regression/signextension2-1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector-regression/signextension2-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d4720d49a1188bad2d134c8dd08313372db11fb ............................................................................................................................................................................................................................................ 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/bitvector-regression/signextension2-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d4720d49a1188bad2d134c8dd08313372db11fb ................................................................................................................................................................................................................................................................................................................. 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 15:02:26,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 15:02:26,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 15:02:26,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 15:02:26,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 15:02:26,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 15:02:26,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 15:02:26,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 15:02:26,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 15:02:26,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 15:02:26,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 15:02:26,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 15:02:26,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 15:02:26,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 15:02:26,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 15:02:26,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 15:02:26,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 15:02:26,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 15:02:26,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 15:02:26,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 15:02:26,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 15:02:26,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 15:02:26,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 15:02:26,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 15:02:26,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 15:02:26,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 15:02:26,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 15:02:26,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 15:02:26,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 15:02:26,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 15:02:26,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 15:02:26,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 15:02:26,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 15:02:26,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 15:02:26,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 15:02:26,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 15:02:26,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 15:02:26,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 15:02:26,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 15:02:26,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 15:02:26,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 15:02:26,863 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 15:02:26,878 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 15:02:26,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 15:02:26,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 15:02:26,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 15:02:26,881 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 15:02:26,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 15:02:26,881 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 15:02:26,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 15:02:26,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 15:02:26,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 15:02:26,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 15:02:26,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 15:02:26,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 15:02:26,883 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 15:02:26,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 15:02:26,884 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 15:02:26,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 15:02:26,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 15:02:26,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 15:02:26,885 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 15:02:26,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 15:02:26,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 15:02:26,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 15:02:26,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 15:02:26,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 15:02:26,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 15:02:26,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 15:02:26,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 15:02:26,887 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 15:02:26,888 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 -> 3d4720d49a1188bad2d134c8dd08313372db11fb [2020-07-28 15:02:27,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 15:02:27,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 15:02:27,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 15:02:27,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 15:02:27,217 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 15:02:27,218 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/signextension2-1.c [2020-07-28 15:02:27,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c82ba24cc/3d5f77f403d04c63bc1f52c0f5b4278e/FLAGc1ce9d707 [2020-07-28 15:02:27,751 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 15:02:27,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/signextension2-1.c [2020-07-28 15:02:27,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c82ba24cc/3d5f77f403d04c63bc1f52c0f5b4278e/FLAGc1ce9d707 [2020-07-28 15:02:28,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c82ba24cc/3d5f77f403d04c63bc1f52c0f5b4278e [2020-07-28 15:02:28,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 15:02:28,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 15:02:28,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 15:02:28,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 15:02:28,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 15:02:28,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 03:02:28" (1/1) ... [2020-07-28 15:02:28,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3994dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28, skipping insertion in model container [2020-07-28 15:02:28,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 03:02:28" (1/1) ... [2020-07-28 15:02:28,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 15:02:28,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 15:02:28,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 15:02:28,434 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 15:02:28,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 15:02:28,476 INFO L208 MainTranslator]: Completed translation [2020-07-28 15:02:28,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28 WrapperNode [2020-07-28 15:02:28,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 15:02:28,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 15:02:28,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 15:02:28,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 15:02:28,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28" (1/1) ... [2020-07-28 15:02:28,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28" (1/1) ... [2020-07-28 15:02:28,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 15:02:28,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 15:02:28,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 15:02:28,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 15:02:28,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28" (1/1) ... [2020-07-28 15:02:28,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28" (1/1) ... [2020-07-28 15:02:28,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28" (1/1) ... [2020-07-28 15:02:28,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28" (1/1) ... [2020-07-28 15:02:28,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28" (1/1) ... [2020-07-28 15:02:28,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28" (1/1) ... [2020-07-28 15:02:28,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28" (1/1) ... [2020-07-28 15:02:28,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 15:02:28,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 15:02:28,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 15:02:28,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 15:02:28,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28" (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 15:02:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 15:02:28,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 15:02:28,821 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 15:02:28,822 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-28 15:02:28,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:02:28 BoogieIcfgContainer [2020-07-28 15:02:28,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 15:02:28,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 15:02:28,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 15:02:28,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 15:02:28,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 03:02:28" (1/3) ... [2020-07-28 15:02:28,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e92079b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 03:02:28, skipping insertion in model container [2020-07-28 15:02:28,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:28" (2/3) ... [2020-07-28 15:02:28,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e92079b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 03:02:28, skipping insertion in model container [2020-07-28 15:02:28,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:02:28" (3/3) ... [2020-07-28 15:02:28,833 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension2-1.c [2020-07-28 15:02:28,844 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 15:02:28,851 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 15:02:28,864 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 15:02:28,888 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 15:02:28,888 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 15:02:28,889 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 15:02:28,889 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 15:02:28,889 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 15:02:28,889 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 15:02:28,890 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 15:02:28,890 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 15:02:28,905 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-07-28 15:02:28,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-28 15:02:28,911 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:02:28,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-28 15:02:28,913 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:02:28,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:02:28,919 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2020-07-28 15:02:28,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 15:02:28,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812375612] [2020-07-28 15:02:28,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 15:02:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:02:29,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 15:02:29,106 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:800) 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 15:02:29,114 INFO L168 Benchmark]: Toolchain (without parser) took 967.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 961.6 MB in the beginning and 1.0 GB in the end (delta: -85.2 MB). Peak memory consumption was 299.6 kB. Max. memory is 11.5 GB. [2020-07-28 15:02:29,115 INFO L168 Benchmark]: CDTParser took 0.77 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 15:02:29,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.64 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 15:02:29,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -130.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:29,118 INFO L168 Benchmark]: Boogie Preprocessor took 18.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:29,119 INFO L168 Benchmark]: RCFGBuilder took 237.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:29,120 INFO L168 Benchmark]: TraceAbstraction took 284.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:29,125 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 0.77 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 328.64 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 89.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -130.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 237.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 284.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: java.lang.NullPointerException de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: java.lang.NullPointerException: de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:800) 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 15:02:31,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 15:02:31,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 15:02:31,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 15:02:31,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 15:02:31,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 15:02:31,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 15:02:31,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 15:02:31,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 15:02:31,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 15:02:31,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 15:02:31,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 15:02:31,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 15:02:31,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 15:02:31,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 15:02:31,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 15:02:31,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 15:02:31,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 15:02:31,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 15:02:31,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 15:02:31,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 15:02:31,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 15:02:31,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 15:02:31,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 15:02:31,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 15:02:31,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 15:02:31,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 15:02:31,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 15:02:31,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 15:02:31,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 15:02:31,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 15:02:31,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 15:02:31,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 15:02:31,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 15:02:31,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 15:02:31,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 15:02:31,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 15:02:31,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 15:02:31,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 15:02:31,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 15:02:31,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 15:02:31,080 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 15:02:31,096 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 15:02:31,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 15:02:31,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 15:02:31,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 15:02:31,098 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 15:02:31,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 15:02:31,099 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 15:02:31,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 15:02:31,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 15:02:31,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 15:02:31,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 15:02:31,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 15:02:31,101 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 15:02:31,101 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 15:02:31,101 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 15:02:31,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 15:02:31,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 15:02:31,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 15:02:31,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 15:02:31,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 15:02:31,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 15:02:31,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 15:02:31,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 15:02:31,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 15:02:31,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 15:02:31,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 15:02:31,105 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 15:02:31,105 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 15:02:31,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 15:02:31,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 15:02:31,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 15:02:31,106 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 -> 3d4720d49a1188bad2d134c8dd08313372db11fb [2020-07-28 15:02:31,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 15:02:31,450 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 15:02:31,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 15:02:31,456 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 15:02:31,459 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 15:02:31,460 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/signextension2-1.c [2020-07-28 15:02:31,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e886c1d6c/2a7e4b260cfa46c1b05ab1cb3da5bfa9/FLAG63f42f388 [2020-07-28 15:02:31,973 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 15:02:31,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/signextension2-1.c [2020-07-28 15:02:31,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e886c1d6c/2a7e4b260cfa46c1b05ab1cb3da5bfa9/FLAG63f42f388 [2020-07-28 15:02:32,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e886c1d6c/2a7e4b260cfa46c1b05ab1cb3da5bfa9 [2020-07-28 15:02:32,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 15:02:32,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 15:02:32,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 15:02:32,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 15:02:32,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 15:02:32,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 03:02:32" (1/1) ... [2020-07-28 15:02:32,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a3fde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32, skipping insertion in model container [2020-07-28 15:02:32,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 03:02:32" (1/1) ... [2020-07-28 15:02:32,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 15:02:32,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 15:02:32,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 15:02:32,562 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 15:02:32,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 15:02:32,591 INFO L208 MainTranslator]: Completed translation [2020-07-28 15:02:32,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32 WrapperNode [2020-07-28 15:02:32,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 15:02:32,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 15:02:32,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 15:02:32,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 15:02:32,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32" (1/1) ... [2020-07-28 15:02:32,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32" (1/1) ... [2020-07-28 15:02:32,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 15:02:32,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 15:02:32,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 15:02:32,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 15:02:32,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32" (1/1) ... [2020-07-28 15:02:32,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32" (1/1) ... [2020-07-28 15:02:32,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32" (1/1) ... [2020-07-28 15:02:32,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32" (1/1) ... [2020-07-28 15:02:32,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32" (1/1) ... [2020-07-28 15:02:32,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32" (1/1) ... [2020-07-28 15:02:32,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32" (1/1) ... [2020-07-28 15:02:32,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 15:02:32,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 15:02:32,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 15:02:32,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 15:02:32,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32" (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 15:02:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 15:02:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 15:02:32,917 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 15:02:32,917 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-28 15:02:32,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:02:32 BoogieIcfgContainer [2020-07-28 15:02:32,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 15:02:32,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 15:02:32,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 15:02:32,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 15:02:32,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 03:02:32" (1/3) ... [2020-07-28 15:02:32,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7b77bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 03:02:32, skipping insertion in model container [2020-07-28 15:02:32,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:02:32" (2/3) ... [2020-07-28 15:02:32,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7b77bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 03:02:32, skipping insertion in model container [2020-07-28 15:02:32,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:02:32" (3/3) ... [2020-07-28 15:02:32,929 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension2-1.c [2020-07-28 15:02:32,940 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 15:02:32,948 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 15:02:32,962 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 15:02:32,985 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 15:02:32,985 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 15:02:32,985 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 15:02:32,986 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 15:02:32,986 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 15:02:32,986 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 15:02:32,986 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 15:02:32,986 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 15:02:33,000 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-07-28 15:02:33,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-28 15:02:33,006 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:02:33,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-28 15:02:33,008 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:02:33,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:02:33,015 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2020-07-28 15:02:33,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 15:02:33,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049094241] [2020-07-28 15:02:33,027 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 15:02:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:02:33,092 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-28 15:02:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:02:33,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 15:02:33,306 INFO L280 TraceCheckUtils]: 0: Hoare triple {10#true} havoc main_#res;havoc main_~allOne~0, main_~castToInt~0, main_~castToLong~0, main_~castToLong2~0, main_~castToULong~0;main_~allOne~0 := 4294967295bv32;main_~castToInt~0 := main_~allOne~0;main_~castToLong~0 := main_~allOne~0;main_~castToLong2~0 := main_~castToInt~0;main_~castToULong~0 := main_~allOne~0; {15#(and (= (bvadd ULTIMATE.start_main_~castToLong~0 (_ bv1 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start_main_~castToULong~0 (_ bv1 32)) (_ bv0 32)) (= ULTIMATE.start_main_~castToInt~0 ULTIMATE.start_main_~castToLong2~0) (= (bvadd ULTIMATE.start_main_~castToInt~0 (_ bv1 32)) (_ bv0 32)))} is VALID [2020-07-28 15:02:33,308 INFO L280 TraceCheckUtils]: 1: Hoare triple {15#(and (= (bvadd ULTIMATE.start_main_~castToLong~0 (_ bv1 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start_main_~castToULong~0 (_ bv1 32)) (_ bv0 32)) (= ULTIMATE.start_main_~castToInt~0 ULTIMATE.start_main_~castToLong2~0) (= (bvadd ULTIMATE.start_main_~castToInt~0 (_ bv1 32)) (_ bv0 32)))} assume ((4294967295bv32 != main_~castToInt~0 || 4294967295bv32 != main_~castToLong~0) || 4294967295bv32 != main_~castToLong2~0) || 4294967295bv32 != main_~castToULong~0; {11#false} is VALID [2020-07-28 15:02:33,308 INFO L280 TraceCheckUtils]: 2: Hoare triple {11#false} assume !false; {11#false} is VALID [2020-07-28 15:02:33,311 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 15:02:33,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 15:02:33,346 INFO L280 TraceCheckUtils]: 2: Hoare triple {11#false} assume !false; {11#false} is VALID [2020-07-28 15:02:33,347 INFO L280 TraceCheckUtils]: 1: Hoare triple {15#(and (= (bvadd ULTIMATE.start_main_~castToLong~0 (_ bv1 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start_main_~castToULong~0 (_ bv1 32)) (_ bv0 32)) (= ULTIMATE.start_main_~castToInt~0 ULTIMATE.start_main_~castToLong2~0) (= (bvadd ULTIMATE.start_main_~castToInt~0 (_ bv1 32)) (_ bv0 32)))} assume ((4294967295bv32 != main_~castToInt~0 || 4294967295bv32 != main_~castToLong~0) || 4294967295bv32 != main_~castToLong2~0) || 4294967295bv32 != main_~castToULong~0; {11#false} is VALID [2020-07-28 15:02:33,351 INFO L280 TraceCheckUtils]: 0: Hoare triple {10#true} havoc main_#res;havoc main_~allOne~0, main_~castToInt~0, main_~castToLong~0, main_~castToLong2~0, main_~castToULong~0;main_~allOne~0 := 4294967295bv32;main_~castToInt~0 := main_~allOne~0;main_~castToLong~0 := main_~allOne~0;main_~castToLong2~0 := main_~castToInt~0;main_~castToULong~0 := main_~allOne~0; {15#(and (= (bvadd ULTIMATE.start_main_~castToLong~0 (_ bv1 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start_main_~castToULong~0 (_ bv1 32)) (_ bv0 32)) (= ULTIMATE.start_main_~castToInt~0 ULTIMATE.start_main_~castToLong2~0) (= (bvadd ULTIMATE.start_main_~castToInt~0 (_ bv1 32)) (_ bv0 32)))} is VALID [2020-07-28 15:02:33,352 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 15:02:33,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049094241] [2020-07-28 15:02:33,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 15:02:33,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 15:02:33,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509569480] [2020-07-28 15:02:33,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-07-28 15:02:33,365 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 15:02:33,369 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 15:02:33,379 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:02:33,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 15:02:33,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 15:02:33,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 15:02:33,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 15:02:33,392 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-07-28 15:02:33,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:02:33,436 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-07-28 15:02:33,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 15:02:33,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-07-28 15:02:33,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 15:02:33,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 15:02:33,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-28 15:02:33,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 15:02:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-28 15:02:33,445 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 9 transitions. [2020-07-28 15:02:33,466 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:02:33,473 INFO L225 Difference]: With dead ends: 10 [2020-07-28 15:02:33,474 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 15:02:33,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 15:02:33,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 15:02:33,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 15:02:33,503 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 15:02:33,504 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 15:02:33,504 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 15:02:33,505 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 15:02:33,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:02:33,505 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 15:02:33,506 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 15:02:33,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:02:33,506 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:02:33,506 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 15:02:33,507 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 15:02:33,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:02:33,507 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 15:02:33,507 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 15:02:33,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:02:33,508 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:02:33,508 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 15:02:33,508 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 15:02:33,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 15:02:33,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 15:02:33,510 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2020-07-28 15:02:33,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 15:02:33,511 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 15:02:33,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 15:02:33,511 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 15:02:33,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:02:33,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 15:02:33,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 15:02:33,800 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 15:02:33,801 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 15:02:33,801 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 15:02:33,801 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-07-28 15:02:33,802 INFO L264 CegarLoopResult]: At program point L18(lines 3 19) the Hoare annotation is: (and (= (bvadd ULTIMATE.start_main_~castToLong~0 (_ bv1 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start_main_~castToULong~0 (_ bv1 32)) (_ bv0 32)) (= ULTIMATE.start_main_~castToInt~0 ULTIMATE.start_main_~castToLong2~0) (= (bvadd ULTIMATE.start_main_~castToInt~0 (_ bv1 32)) (_ bv0 32))) [2020-07-28 15:02:33,802 INFO L264 CegarLoopResult]: At program point L13(lines 3 19) the Hoare annotation is: false [2020-07-28 15:02:33,802 INFO L268 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-07-28 15:02:33,809 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 15:02:33,809 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 15:02:33,809 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 15:02:33,809 WARN L170 areAnnotationChecker]: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2020-07-28 15:02:33,810 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 15:02:33,810 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 15:02:33,810 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 15:02:33,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 03:02:33 BoogieIcfgContainer [2020-07-28 15:02:33,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 15:02:33,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 15:02:33,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 15:02:33,822 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 15:02:33,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:02:32" (3/4) ... [2020-07-28 15:02:33,826 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 15:02:33,837 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 15:02:33,837 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-28 15:02:33,879 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 15:02:33,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 15:02:33,882 INFO L168 Benchmark]: Toolchain (without parser) took 1530.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -105.8 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:33,883 INFO L168 Benchmark]: CDTParser took 0.31 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 15:02:33,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.81 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:33,884 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.32 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 15:02:33,885 INFO L168 Benchmark]: Boogie Preprocessor took 76.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:33,886 INFO L168 Benchmark]: RCFGBuilder took 218.27 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:33,887 INFO L168 Benchmark]: TraceAbstraction took 899.32 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:33,888 INFO L168 Benchmark]: Witness Printer took 57.53 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 15:02:33,892 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 0.31 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 238.81 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 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 32.32 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 218.27 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 899.32 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: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * Witness Printer took 57.53 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: 17]: 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: 3]: Loop Invariant Derived loop invariant: ((~bvadd64(castToLong, 1bv32) == 0bv32 && ~bvadd64(castToULong, 1bv32) == 0bv32) && castToInt == castToLong2) && ~bvadd64(castToInt, 1bv32) == 0bv32 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 3 NumberOfFragments, 20 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 5 NumberOfNonLiveVariables, 9 ConjunctsInSsa, 6 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...