./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 678e0110 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 0.1.24-678e011 [2019-11-19 21:13:57,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:13:57,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:13:57,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:13:57,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:13:57,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:13:57,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:13:57,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:13:57,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:13:57,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:13:57,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:13:57,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:13:57,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:13:57,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:13:57,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:13:57,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:13:57,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:13:57,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:13:57,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:13:57,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:13:57,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:13:57,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:13:57,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:13:57,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:13:57,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:13:57,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:13:57,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:13:57,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:13:57,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:13:57,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:13:57,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:13:57,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:13:57,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:13:57,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:13:57,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:13:57,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:13:57,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:13:57,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:13:57,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:13:57,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:13:57,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:13:57,578 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 21:13:57,604 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:13:57,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:13:57,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:13:57,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:13:57,607 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:13:57,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:13:57,611 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:13:57,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 21:13:57,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:13:57,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:13:57,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:13:57,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:13:57,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:13:57,612 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:13:57,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:13:57,613 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:13:57,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:13:57,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:13:57,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:13:57,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:13:57,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:13:57,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:13:57,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:13:57,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:13:57,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:13:57,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 21:13:57,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 21:13:57,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:13:57,616 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 [2019-11-19 21:13:57,979 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:13:58,001 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:13:58,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:13:58,008 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:13:58,008 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:13:58,009 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/fo_test.i [2019-11-19 21:13:58,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf0aa1cc/1f5848e1e75447c6818360f590129ea5/FLAG00cf8a6fe [2019-11-19 21:13:58,713 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:13:58,714 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/fo_test.i [2019-11-19 21:13:58,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf0aa1cc/1f5848e1e75447c6818360f590129ea5/FLAG00cf8a6fe [2019-11-19 21:13:58,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf0aa1cc/1f5848e1e75447c6818360f590129ea5 [2019-11-19 21:13:58,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:13:58,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:13:58,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:13:58,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:13:58,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:13:58,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:13:58" (1/1) ... [2019-11-19 21:13:58,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21bb86f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:58, skipping insertion in model container [2019-11-19 21:13:58,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:13:58" (1/1) ... [2019-11-19 21:13:58,994 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:13:59,059 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:13:59,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:13:59,606 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:13:59,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:13:59,772 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:13:59,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:59 WrapperNode [2019-11-19 21:13:59,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:13:59,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:13:59,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:13:59,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:13:59,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:59" (1/1) ... [2019-11-19 21:13:59,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:59" (1/1) ... [2019-11-19 21:13:59,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:13:59,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:13:59,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:13:59,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:13:59,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:59" (1/1) ... [2019-11-19 21:13:59,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:59" (1/1) ... [2019-11-19 21:13:59,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:59" (1/1) ... [2019-11-19 21:13:59,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:59" (1/1) ... [2019-11-19 21:13:59,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:59" (1/1) ... [2019-11-19 21:13:59,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:59" (1/1) ... [2019-11-19 21:13:59,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:59" (1/1) ... [2019-11-19 21:13:59,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:13:59,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:13:59,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:13:59,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:13:59,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:59" (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 [2019-11-19 21:13:59,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 21:13:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:13:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-11-19 21:13:59,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:13:59,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:14:00,296 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:14:00,296 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-19 21:14:00,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:14:00 BoogieIcfgContainer [2019-11-19 21:14:00,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:14:00,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:14:00,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:14:00,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:14:00,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:13:58" (1/3) ... [2019-11-19 21:14:00,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fe8ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:14:00, skipping insertion in model container [2019-11-19 21:14:00,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:59" (2/3) ... [2019-11-19 21:14:00,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fe8ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:14:00, skipping insertion in model container [2019-11-19 21:14:00,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:14:00" (3/3) ... [2019-11-19 21:14:00,306 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2019-11-19 21:14:00,316 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:14:00,324 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 21:14:00,334 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 21:14:00,356 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:14:00,357 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:14:00,357 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:14:00,357 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:14:00,357 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:14:00,357 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:14:00,358 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:14:00,358 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:14:00,372 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-19 21:14:00,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 21:14:00,379 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:14:00,380 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:14:00,380 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:14:00,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:14:00,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965446, now seen corresponding path program 1 times [2019-11-19 21:14:00,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:14:00,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209947252] [2019-11-19 21:14:00,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:14:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:14:00,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:14:00,565 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209947252] [2019-11-19 21:14:00,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:14:00,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 21:14:00,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063066449] [2019-11-19 21:14:00,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 21:14:00,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 21:14:00,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 21:14:00,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 21:14:00,588 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2019-11-19 21:14:00,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:14:00,629 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-11-19 21:14:00,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 21:14:00,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-19 21:14:00,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:14:00,639 INFO L225 Difference]: With dead ends: 23 [2019-11-19 21:14:00,639 INFO L226 Difference]: Without dead ends: 8 [2019-11-19 21:14:00,642 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 [2019-11-19 21:14:00,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-19 21:14:00,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-19 21:14:00,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-19 21:14:00,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-11-19 21:14:00,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2019-11-19 21:14:00,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:14:00,672 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-11-19 21:14:00,672 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 21:14:00,672 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-11-19 21:14:00,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 21:14:00,673 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:14:00,673 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:14:00,673 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:14:00,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:14:00,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812488, now seen corresponding path program 1 times [2019-11-19 21:14:00,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:14:00,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644483858] [2019-11-19 21:14:00,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:14:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:14:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:14:00,752 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 21:14:00,752 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 21:14:00,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:14:00 BoogieIcfgContainer [2019-11-19 21:14:00,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:14:00,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:14:00,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:14:00,787 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:14:00,788 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:14:00" (3/4) ... [2019-11-19 21:14:00,791 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 21:14:00,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:14:00,794 INFO L168 Benchmark]: Toolchain (without parser) took 1817.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -105.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:00,795 INFO L168 Benchmark]: CDTParser took 0.32 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. [2019-11-19 21:14:00,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:00,797 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.38 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. [2019-11-19 21:14:00,797 INFO L168 Benchmark]: Boogie Preprocessor took 55.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:14:00,798 INFO L168 Benchmark]: RCFGBuilder took 388.78 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:00,799 INFO L168 Benchmark]: TraceAbstraction took 487.58 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:00,800 INFO L168 Benchmark]: Witness Printer took 4.72 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. [2019-11-19 21:14:00,804 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 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 796.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.38 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 55.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 388.78 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 487.58 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.72 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; [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 0.1.24-678e011 [2019-11-19 21:14:02,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:14:02,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:14:02,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:14:02,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:14:02,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:14:02,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:14:02,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:14:02,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:14:02,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:14:02,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:14:02,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:14:02,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:14:02,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:14:02,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:14:02,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:14:02,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:14:02,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:14:02,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:14:02,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:14:02,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:14:02,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:14:02,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:14:02,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:14:02,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:14:02,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:14:02,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:14:02,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:14:02,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:14:02,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:14:02,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:14:02,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:14:02,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:14:02,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:14:02,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:14:02,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:14:02,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:14:02,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:14:02,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:14:02,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:14:02,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:14:02,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 21:14:02,987 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:14:02,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:14:02,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:14:02,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:14:02,991 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:14:02,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:14:02,991 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:14:02,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:14:02,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:14:02,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:14:02,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:14:02,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:14:02,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 21:14:02,994 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 21:14:02,994 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:14:02,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:14:02,995 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:14:02,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:14:02,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:14:02,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:14:02,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:14:02,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:14:02,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:14:02,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:14:02,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:14:02,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:14:02,998 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 21:14:02,998 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 21:14:02,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:14:02,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 21:14:02,999 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 [2019-11-19 21:14:03,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:14:03,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:14:03,342 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:14:03,344 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:14:03,344 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:14:03,345 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/fo_test.i [2019-11-19 21:14:03,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/963db48ee/d60f6933295341f99606018146712c85/FLAGc8d4d36f5 [2019-11-19 21:14:03,983 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:14:03,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/fo_test.i [2019-11-19 21:14:03,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/963db48ee/d60f6933295341f99606018146712c85/FLAGc8d4d36f5 [2019-11-19 21:14:04,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/963db48ee/d60f6933295341f99606018146712c85 [2019-11-19 21:14:04,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:14:04,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:14:04,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:14:04,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:14:04,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:14:04,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:14:04" (1/1) ... [2019-11-19 21:14:04,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e62f6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04, skipping insertion in model container [2019-11-19 21:14:04,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:14:04" (1/1) ... [2019-11-19 21:14:04,287 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:14:04,343 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:14:04,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:14:04,827 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:14:04,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:14:04,994 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:14:04,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04 WrapperNode [2019-11-19 21:14:04,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:14:04,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:14:04,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:14:04,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:14:05,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04" (1/1) ... [2019-11-19 21:14:05,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04" (1/1) ... [2019-11-19 21:14:05,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:14:05,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:14:05,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:14:05,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:14:05,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04" (1/1) ... [2019-11-19 21:14:05,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04" (1/1) ... [2019-11-19 21:14:05,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04" (1/1) ... [2019-11-19 21:14:05,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04" (1/1) ... [2019-11-19 21:14:05,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04" (1/1) ... [2019-11-19 21:14:05,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04" (1/1) ... [2019-11-19 21:14:05,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04" (1/1) ... [2019-11-19 21:14:05,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:14:05,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:14:05,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:14:05,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:14:05,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04" (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 [2019-11-19 21:14:05,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 21:14:05,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:14:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-11-19 21:14:05,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:14:05,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:14:05,501 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:14:05,501 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-19 21:14:05,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:14:05 BoogieIcfgContainer [2019-11-19 21:14:05,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:14:05,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:14:05,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:14:05,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:14:05,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:14:04" (1/3) ... [2019-11-19 21:14:05,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbba595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:14:05, skipping insertion in model container [2019-11-19 21:14:05,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:14:04" (2/3) ... [2019-11-19 21:14:05,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbba595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:14:05, skipping insertion in model container [2019-11-19 21:14:05,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:14:05" (3/3) ... [2019-11-19 21:14:05,511 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2019-11-19 21:14:05,521 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:14:05,528 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 21:14:05,541 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 21:14:05,564 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:14:05,565 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:14:05,565 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:14:05,565 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:14:05,565 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:14:05,566 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:14:05,566 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:14:05,566 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:14:05,578 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-19 21:14:05,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 21:14:05,584 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:14:05,585 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:14:05,586 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:14:05,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:14:05,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965446, now seen corresponding path program 1 times [2019-11-19 21:14:05,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:14:05,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [859187662] [2019-11-19 21:14:05,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 21:14:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:14:05,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 21:14:05,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:14:05,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:14:05,762 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:14:05,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:14:05,769 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [859187662] [2019-11-19 21:14:05,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:14:05,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-19 21:14:05,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002603774] [2019-11-19 21:14:05,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 21:14:05,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:14:05,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 21:14:05,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 21:14:05,796 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2019-11-19 21:14:05,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:14:05,837 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-11-19 21:14:05,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 21:14:05,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-19 21:14:05,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:14:05,862 INFO L225 Difference]: With dead ends: 23 [2019-11-19 21:14:05,862 INFO L226 Difference]: Without dead ends: 8 [2019-11-19 21:14:05,866 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 [2019-11-19 21:14:05,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-19 21:14:05,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-19 21:14:05,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-19 21:14:05,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-11-19 21:14:05,911 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2019-11-19 21:14:05,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:14:05,912 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-11-19 21:14:05,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 21:14:05,914 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-11-19 21:14:05,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 21:14:05,915 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:14:05,915 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:14:06,119 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 21:14:06,119 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:14:06,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:14:06,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812488, now seen corresponding path program 1 times [2019-11-19 21:14:06,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:14:06,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1498888576] [2019-11-19 21:14:06,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 21:14:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:14:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:14:06,346 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-19 21:14:06,347 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 21:14:06,558 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 21:14:06,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:14:06 BoogieIcfgContainer [2019-11-19 21:14:06,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:14:06,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:14:06,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:14:06,595 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:14:06,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:14:05" (3/4) ... [2019-11-19 21:14:06,599 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 21:14:06,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:14:06,602 INFO L168 Benchmark]: Toolchain (without parser) took 2333.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -97.7 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:06,602 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-19 21:14:06,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:06,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.99 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. [2019-11-19 21:14:06,605 INFO L168 Benchmark]: Boogie Preprocessor took 61.89 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. [2019-11-19 21:14:06,606 INFO L168 Benchmark]: RCFGBuilder took 383.09 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:06,606 INFO L168 Benchmark]: TraceAbstraction took 1090.94 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: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. [2019-11-19 21:14:06,607 INFO L168 Benchmark]: Witness Printer took 4.78 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. [2019-11-19 21:14:06,612 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 727.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.99 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 61.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 383.09 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1090.94 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: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.78 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; [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: 1.0s, 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, 47 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...