./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/fo_test.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/fo_test.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 1b89be727e1b941b152f4b6e505aae7e5221fdd7 ......................................................................................................................................................................................................................................................................... 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 -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/fo_test.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 1b89be727e1b941b152f4b6e505aae7e5221fdd7 ....................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:52:54,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:52:54,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:52:54,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:52:54,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:52:54,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:52:54,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:52:54,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:52:54,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:52:54,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:52:54,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:52:54,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:52:54,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:52:54,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:52:54,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:52:54,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:52:54,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:52:54,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:52:54,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:52:54,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:52:54,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:52:54,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:52:54,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:52:54,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:52:54,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:52:54,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:52:54,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:52:54,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:52:54,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:52:54,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:52:54,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:52:54,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:52:54,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:52:54,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:52:54,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:52:54,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:52:54,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:52:54,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:52:54,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:52:54,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:52:54,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:52:54,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:52:54,947 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:52:54,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:52:54,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:52:54,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:52:54,950 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:52:54,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:52:54,950 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:52:54,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:52:54,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:52:54,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:52:54,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:52:54,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:52:54,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:52:54,952 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:52:54,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:52:54,953 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:52:54,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:52:54,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:52:54,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:52:54,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:52:54,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:52:54,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:52:54,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:52:54,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:52:54,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:52:54,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:52:54,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:52:54,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:52:54,957 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 -> 1b89be727e1b941b152f4b6e505aae7e5221fdd7 [2019-11-27 23:52:55,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:52:55,279 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:52:55,282 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:52:55,284 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:52:55,285 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:52:55,286 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/fo_test.i [2019-11-27 23:52:55,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d75d3b5/7cfc25a696534f318453ea8e3c11f7e9/FLAG26acc9a42 [2019-11-27 23:52:55,912 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:52:55,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/fo_test.i [2019-11-27 23:52:55,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d75d3b5/7cfc25a696534f318453ea8e3c11f7e9/FLAG26acc9a42 [2019-11-27 23:52:56,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d75d3b5/7cfc25a696534f318453ea8e3c11f7e9 [2019-11-27 23:52:56,226 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:52:56,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:52:56,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:52:56,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:52:56,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:52:56,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:52:56" (1/1) ... [2019-11-27 23:52:56,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d8897c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56, skipping insertion in model container [2019-11-27 23:52:56,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:52:56" (1/1) ... [2019-11-27 23:52:56,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:52:56,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:52:56,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:52:56,719 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:52:56,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:52:56,859 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:52:56,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56 WrapperNode [2019-11-27 23:52:56,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:52:56,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:52:56,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:52:56,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:52:56,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56" (1/1) ... [2019-11-27 23:52:56,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56" (1/1) ... [2019-11-27 23:52:56,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:52:56,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:52:56,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:52:56,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:52:56,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56" (1/1) ... [2019-11-27 23:52:56,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56" (1/1) ... [2019-11-27 23:52:56,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56" (1/1) ... [2019-11-27 23:52:56,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56" (1/1) ... [2019-11-27 23:52:56,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56" (1/1) ... [2019-11-27 23:52:56,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56" (1/1) ... [2019-11-27 23:52:56,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56" (1/1) ... [2019-11-27 23:52:56,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:52:56,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:52:56,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:52:56,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:52:56,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56" (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 [2019-11-27 23:52:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-27 23:52:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:52:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-11-27 23:52:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:52:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:52:57,319 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:52:57,319 INFO L297 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-27 23:52:57,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:52:57 BoogieIcfgContainer [2019-11-27 23:52:57,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:52:57,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:52:57,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:52:57,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:52:57,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:52:56" (1/3) ... [2019-11-27 23:52:57,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6032e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:52:57, skipping insertion in model container [2019-11-27 23:52:57,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:52:56" (2/3) ... [2019-11-27 23:52:57,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6032e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:52:57, skipping insertion in model container [2019-11-27 23:52:57,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:52:57" (3/3) ... [2019-11-27 23:52:57,329 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2019-11-27 23:52:57,340 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:52:57,348 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:52:57,360 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:52:57,381 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:52:57,382 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:52:57,382 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:52:57,382 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:52:57,382 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:52:57,383 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:52:57,383 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:52:57,383 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:52:57,396 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-27 23:52:57,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-27 23:52:57,401 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:52:57,402 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:52:57,403 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:52:57,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:52:57,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965446, now seen corresponding path program 1 times [2019-11-27 23:52:57,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:52:57,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485777390] [2019-11-27 23:52:57,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:52:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:52:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:52:57,587 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485777390] [2019-11-27 23:52:57,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:52:57,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 23:52:57,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278887873] [2019-11-27 23:52:57,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 23:52:57,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:52:57,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 23:52:57,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:52:57,608 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2019-11-27 23:52:57,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:52:57,638 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-11-27 23:52:57,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:52:57,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-27 23:52:57,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:52:57,650 INFO L225 Difference]: With dead ends: 23 [2019-11-27 23:52:57,650 INFO L226 Difference]: Without dead ends: 8 [2019-11-27 23:52:57,654 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:52:57,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-27 23:52:57,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-27 23:52:57,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-27 23:52:57,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-11-27 23:52:57,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2019-11-27 23:52:57,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:52:57,692 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-11-27 23:52:57,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 23:52:57,693 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-11-27 23:52:57,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-27 23:52:57,694 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:52:57,694 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:52:57,695 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:52:57,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:52:57,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812488, now seen corresponding path program 1 times [2019-11-27 23:52:57,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:52:57,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719285077] [2019-11-27 23:52:57,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:52:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:52:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:52:57,864 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:52:57,865 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:52:57,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:52:57 BoogieIcfgContainer [2019-11-27 23:52:57,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:52:57,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:52:57,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:52:57,919 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:52:57,919 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:52:57" (3/4) ... [2019-11-27 23:52:57,924 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:52:57,924 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:52:57,928 INFO L168 Benchmark]: Toolchain (without parser) took 1698.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -111.9 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:57,929 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:52:57,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:57,932 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.09 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. [2019-11-27 23:52:57,933 INFO L168 Benchmark]: Boogie Preprocessor took 22.32 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. [2019-11-27 23:52:57,933 INFO L168 Benchmark]: RCFGBuilder took 376.81 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. [2019-11-27 23:52:57,935 INFO L168 Benchmark]: TraceAbstraction took 595.57 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:52:57,935 INFO L168 Benchmark]: Witness Printer took 5.90 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. [2019-11-27 23:52:57,946 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 632.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.32 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 376.81 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 595.57 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1152] int globalState = 0; VAL [globalState=0] [L1170] int fd = open(file,flags); VAL [globalState=0] [L1171] COND FALSE !(fd>0) VAL [globalState=0] [L1172] return fd; VAL [globalState=0] [L1158] int file = l_open("unknown",00); [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); [L1165] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=0] [L960] __VERIFIER_error() VAL [globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 5 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:52:59,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:52:59,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:52:59,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:52:59,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:52:59,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:52:59,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:52:59,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:52:59,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:52:59,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:52:59,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:52:59,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:52:59,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:52:59,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:52:59,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:52:59,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:52:59,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:52:59,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:52:59,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:52:59,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:52:59,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:52:59,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:53:00,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:53:00,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:53:00,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:53:00,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:53:00,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:53:00,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:53:00,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:53:00,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:53:00,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:53:00,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:53:00,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:53:00,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:53:00,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:53:00,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:53:00,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:53:00,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:53:00,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:53:00,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:53:00,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:53:00,022 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:53:00,058 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:53:00,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:53:00,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:53:00,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:53:00,064 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:53:00,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:53:00,064 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:53:00,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:53:00,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:53:00,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:53:00,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:53:00,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:53:00,065 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:53:00,065 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:53:00,066 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:53:00,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:53:00,066 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:53:00,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:53:00,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:53:00,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:53:00,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:53:00,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:53:00,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:53:00,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:53:00,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:53:00,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:53:00,068 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:53:00,069 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:53:00,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:53:00,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:53:00,069 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 -> 1b89be727e1b941b152f4b6e505aae7e5221fdd7 [2019-11-27 23:53:00,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:53:00,428 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:53:00,431 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:53:00,433 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:53:00,434 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:53:00,436 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/fo_test.i [2019-11-27 23:53:00,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00ae62ba5/3fe9aa0bd1fe42ee8d4a7260ab8f60ef/FLAGf9f5ae864 [2019-11-27 23:53:01,043 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:53:01,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/fo_test.i [2019-11-27 23:53:01,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00ae62ba5/3fe9aa0bd1fe42ee8d4a7260ab8f60ef/FLAGf9f5ae864 [2019-11-27 23:53:01,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00ae62ba5/3fe9aa0bd1fe42ee8d4a7260ab8f60ef [2019-11-27 23:53:01,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:53:01,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:53:01,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:53:01,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:53:01,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:53:01,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:53:01" (1/1) ... [2019-11-27 23:53:01,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4aa4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:01, skipping insertion in model container [2019-11-27 23:53:01,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:53:01" (1/1) ... [2019-11-27 23:53:01,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:53:01,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:53:01,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:53:02,005 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:53:02,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:53:02,140 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:53:02,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:02 WrapperNode [2019-11-27 23:53:02,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:53:02,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:53:02,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:53:02,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:53:02,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:02" (1/1) ... [2019-11-27 23:53:02,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:02" (1/1) ... [2019-11-27 23:53:02,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:53:02,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:53:02,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:53:02,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:53:02,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:02" (1/1) ... [2019-11-27 23:53:02,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:02" (1/1) ... [2019-11-27 23:53:02,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:02" (1/1) ... [2019-11-27 23:53:02,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:02" (1/1) ... [2019-11-27 23:53:02,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:02" (1/1) ... [2019-11-27 23:53:02,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:02" (1/1) ... [2019-11-27 23:53:02,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:02" (1/1) ... [2019-11-27 23:53:02,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:53:02,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:53:02,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:53:02,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:53:02,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:02" (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 [2019-11-27 23:53:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-27 23:53:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:53:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-11-27 23:53:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:53:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:53:02,587 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:53:02,587 INFO L297 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-27 23:53:02,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:53:02 BoogieIcfgContainer [2019-11-27 23:53:02,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:53:02,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:53:02,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:53:02,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:53:02,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:53:01" (1/3) ... [2019-11-27 23:53:02,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7c310a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:53:02, skipping insertion in model container [2019-11-27 23:53:02,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:02" (2/3) ... [2019-11-27 23:53:02,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7c310a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:53:02, skipping insertion in model container [2019-11-27 23:53:02,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:53:02" (3/3) ... [2019-11-27 23:53:02,598 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2019-11-27 23:53:02,609 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:53:02,616 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:53:02,627 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:53:02,648 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:53:02,649 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:53:02,649 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:53:02,649 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:53:02,649 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:53:02,650 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:53:02,650 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:53:02,650 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:53:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-27 23:53:02,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-27 23:53:02,669 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:53:02,670 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:53:02,671 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:53:02,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:53:02,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965446, now seen corresponding path program 1 times [2019-11-27 23:53:02,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:53:02,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040580525] [2019-11-27 23:53:02,686 INFO L94 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 [2019-11-27 23:53:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:53:02,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-27 23:53:02,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:53:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:53:02,828 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:53:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:53:02,835 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040580525] [2019-11-27 23:53:02,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:53:02,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-27 23:53:02,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555665584] [2019-11-27 23:53:02,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 23:53:02,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:53:02,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 23:53:02,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:53:02,854 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2019-11-27 23:53:02,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:53:02,891 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-11-27 23:53:02,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:53:02,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-27 23:53:02,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:53:02,903 INFO L225 Difference]: With dead ends: 23 [2019-11-27 23:53:02,904 INFO L226 Difference]: Without dead ends: 8 [2019-11-27 23:53:02,907 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:53:02,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-27 23:53:02,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-27 23:53:02,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-27 23:53:02,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-11-27 23:53:02,943 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2019-11-27 23:53:02,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:53:02,944 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-11-27 23:53:02,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 23:53:02,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-11-27 23:53:02,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-27 23:53:02,945 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:53:02,945 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:53:03,154 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:53:03,158 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:53:03,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:53:03,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812488, now seen corresponding path program 1 times [2019-11-27 23:53:03,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:53:03,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665396387] [2019-11-27 23:53:03,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-27 23:53:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:53:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:53:03,282 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-27 23:53:03,282 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:53:03,492 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:53:03,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:53:03 BoogieIcfgContainer [2019-11-27 23:53:03,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:53:03,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:53:03,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:53:03,536 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:53:03,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:53:02" (3/4) ... [2019-11-27 23:53:03,544 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:53:03,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:53:03,547 INFO L168 Benchmark]: Toolchain (without parser) took 2066.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -59.2 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:03,548 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:53:03,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -128.3 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:03,552 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:53:03,552 INFO L168 Benchmark]: Boogie Preprocessor took 27.93 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:53:03,554 INFO L168 Benchmark]: RCFGBuilder took 371.72 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:03,555 INFO L168 Benchmark]: TraceAbstraction took 944.45 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: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:03,557 INFO L168 Benchmark]: Witness Printer took 9.56 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:53:03,572 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 661.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -128.3 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.93 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 371.72 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 944.45 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: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 11.5 GB. * Witness Printer took 9.56 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1152] int globalState = 0; VAL [globalState=0] [L1170] int fd = open(file,flags); VAL [globalState=0] [L1171] COND FALSE !(fd>0) VAL [globalState=0] [L1172] return fd; VAL [globalState=0] [L1158] int file = l_open("unknown",00); [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); [L1165] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=0] [L960] __VERIFIER_error() VAL [globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 5 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 1 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 2 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...