./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: 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 /storage/repos/svcomp/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.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: 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 /storage/repos/svcomp/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.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 0.1.24-0ed9222-m [2019-01-14 15:47:15,496 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 15:47:15,498 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 15:47:15,513 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 15:47:15,514 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 15:47:15,516 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 15:47:15,519 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 15:47:15,522 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 15:47:15,525 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 15:47:15,527 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 15:47:15,528 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 15:47:15,529 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 15:47:15,531 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 15:47:15,534 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 15:47:15,535 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 15:47:15,535 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 15:47:15,536 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 15:47:15,538 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 15:47:15,540 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 15:47:15,542 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 15:47:15,543 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 15:47:15,545 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 15:47:15,547 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 15:47:15,548 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 15:47:15,548 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 15:47:15,549 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 15:47:15,550 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 15:47:15,551 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 15:47:15,552 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 15:47:15,553 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 15:47:15,553 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 15:47:15,554 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 15:47:15,554 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 15:47:15,554 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 15:47:15,555 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 15:47:15,556 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 15:47:15,557 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 15:47:15,581 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 15:47:15,581 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 15:47:15,583 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 15:47:15,583 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 15:47:15,583 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 15:47:15,584 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 15:47:15,584 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 15:47:15,584 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 15:47:15,584 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 15:47:15,584 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 15:47:15,584 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 15:47:15,585 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 15:47:15,586 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 15:47:15,586 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 15:47:15,586 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 15:47:15,586 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 15:47:15,586 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 15:47:15,586 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 15:47:15,587 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 15:47:15,588 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 15:47:15,588 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 15:47:15,588 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 15:47:15,588 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 15:47:15,588 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 15:47:15,588 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 15:47:15,589 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 15:47:15,589 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 15:47:15,589 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 [2019-01-14 15:47:15,626 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 15:47:15,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 15:47:15,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 15:47:15,650 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 15:47:15,651 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 15:47:15,652 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2019-01-14 15:47:15,713 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf553b542/b9b83af35cfb4daf8e88ab16b7c38c1b/FLAGa8bf7c3af [2019-01-14 15:47:16,200 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 15:47:16,201 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2019-01-14 15:47:16,215 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf553b542/b9b83af35cfb4daf8e88ab16b7c38c1b/FLAGa8bf7c3af [2019-01-14 15:47:16,510 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf553b542/b9b83af35cfb4daf8e88ab16b7c38c1b [2019-01-14 15:47:16,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 15:47:16,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 15:47:16,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 15:47:16,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 15:47:16,521 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 15:47:16,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:47:16" (1/1) ... [2019-01-14 15:47:16,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657599d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:16, skipping insertion in model container [2019-01-14 15:47:16,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:47:16" (1/1) ... [2019-01-14 15:47:16,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 15:47:16,594 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 15:47:16,973 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 15:47:16,984 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 15:47:17,124 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 15:47:17,193 INFO L195 MainTranslator]: Completed translation [2019-01-14 15:47:17,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:17 WrapperNode [2019-01-14 15:47:17,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 15:47:17,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 15:47:17,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 15:47:17,195 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 15:47:17,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:17" (1/1) ... [2019-01-14 15:47:17,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:17" (1/1) ... [2019-01-14 15:47:17,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 15:47:17,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 15:47:17,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 15:47:17,265 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 15:47:17,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:17" (1/1) ... [2019-01-14 15:47:17,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:17" (1/1) ... [2019-01-14 15:47:17,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:17" (1/1) ... [2019-01-14 15:47:17,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:17" (1/1) ... [2019-01-14 15:47:17,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:17" (1/1) ... [2019-01-14 15:47:17,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:17" (1/1) ... [2019-01-14 15:47:17,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:17" (1/1) ... [2019-01-14 15:47:17,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 15:47:17,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 15:47:17,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 15:47:17,303 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 15:47:17,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:17" (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 [2019-01-14 15:47:17,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-14 15:47:17,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 15:47:17,375 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-01-14 15:47:17,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 15:47:17,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 15:47:17,762 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 15:47:17,762 INFO L286 CfgBuilder]: Removed 10 assue(true) statements. [2019-01-14 15:47:17,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:47:17 BoogieIcfgContainer [2019-01-14 15:47:17,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 15:47:17,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 15:47:17,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 15:47:17,772 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 15:47:17,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 03:47:16" (1/3) ... [2019-01-14 15:47:17,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1c1c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 03:47:17, skipping insertion in model container [2019-01-14 15:47:17,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:17" (2/3) ... [2019-01-14 15:47:17,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1c1c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 03:47:17, skipping insertion in model container [2019-01-14 15:47:17,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:47:17" (3/3) ... [2019-01-14 15:47:17,776 INFO L112 eAbstractionObserver]: Analyzing ICFG fo_test_true-termination.c_false-unreach-call.i [2019-01-14 15:47:17,793 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 15:47:17,808 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 15:47:17,824 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 15:47:17,856 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 15:47:17,856 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 15:47:17,856 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 15:47:17,856 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 15:47:17,857 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 15:47:17,857 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 15:47:17,857 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 15:47:17,857 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 15:47:17,857 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 15:47:17,868 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-01-14 15:47:17,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 15:47:17,874 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 15:47:17,875 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 15:47:17,878 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 15:47:17,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 15:47:17,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965446, now seen corresponding path program 1 times [2019-01-14 15:47:17,885 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 15:47:17,885 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 15:47:17,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 15:47:17,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 15:47:17,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 15:47:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 15:47:18,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 15:47:18,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 15:47:18,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 15:47:18,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 15:47:18,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 15:47:18,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 15:47:18,065 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2019-01-14 15:47:18,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 15:47:18,120 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-01-14 15:47:18,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 15:47:18,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-01-14 15:47:18,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 15:47:18,130 INFO L225 Difference]: With dead ends: 23 [2019-01-14 15:47:18,130 INFO L226 Difference]: Without dead ends: 8 [2019-01-14 15:47:18,133 INFO L631 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 [2019-01-14 15:47:18,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-14 15:47:18,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-14 15:47:18,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-14 15:47:18,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-01-14 15:47:18,162 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2019-01-14 15:47:18,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 15:47:18,162 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-01-14 15:47:18,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 15:47:18,163 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-01-14 15:47:18,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 15:47:18,163 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 15:47:18,163 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 15:47:18,164 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 15:47:18,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 15:47:18,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812488, now seen corresponding path program 1 times [2019-01-14 15:47:18,164 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 15:47:18,164 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 15:47:18,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 15:47:18,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 15:47:18,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 15:47:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 15:47:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 15:47:18,279 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 15:47:18,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 03:47:18 BoogieIcfgContainer [2019-01-14 15:47:18,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 15:47:18,316 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 15:47:18,316 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 15:47:18,316 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 15:47:18,317 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:47:17" (3/4) ... [2019-01-14 15:47:18,321 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 15:47:18,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 15:47:18,322 INFO L168 Benchmark]: Toolchain (without parser) took 1808.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -108.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-01-14 15:47:18,324 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 15:47:18,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-01-14 15:47:18,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.08 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-14 15:47:18,327 INFO L168 Benchmark]: Boogie Preprocessor took 37.81 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. [2019-01-14 15:47:18,327 INFO L168 Benchmark]: RCFGBuilder took 461.09 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-01-14 15:47:18,328 INFO L168 Benchmark]: TraceAbstraction took 550.64 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: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-01-14 15:47:18,329 INFO L168 Benchmark]: Witness Printer took 5.34 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. [2019-01-14 15:47:18,334 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 678.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.08 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.81 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 461.09 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 550.64 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: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.34 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. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 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, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.24-0ed9222-m [2019-01-14 15:47:20,534 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 15:47:20,538 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 15:47:20,553 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 15:47:20,553 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 15:47:20,554 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 15:47:20,555 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 15:47:20,557 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 15:47:20,563 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 15:47:20,564 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 15:47:20,565 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 15:47:20,565 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 15:47:20,566 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 15:47:20,567 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 15:47:20,568 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 15:47:20,569 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 15:47:20,570 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 15:47:20,572 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 15:47:20,574 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 15:47:20,575 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 15:47:20,576 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 15:47:20,578 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 15:47:20,580 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 15:47:20,581 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 15:47:20,581 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 15:47:20,582 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 15:47:20,583 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 15:47:20,584 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 15:47:20,584 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 15:47:20,590 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 15:47:20,590 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 15:47:20,591 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 15:47:20,591 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 15:47:20,591 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 15:47:20,595 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 15:47:20,596 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 15:47:20,596 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-14 15:47:20,624 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 15:47:20,624 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 15:47:20,626 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 15:47:20,626 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 15:47:20,626 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 15:47:20,626 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 15:47:20,627 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 15:47:20,627 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 15:47:20,627 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 15:47:20,627 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 15:47:20,627 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 15:47:20,627 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 15:47:20,629 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-14 15:47:20,629 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-14 15:47:20,629 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 15:47:20,629 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 15:47:20,629 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 15:47:20,629 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 15:47:20,630 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 15:47:20,630 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 15:47:20,630 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 15:47:20,630 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 15:47:20,630 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 15:47:20,630 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 15:47:20,632 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 15:47:20,632 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-14 15:47:20,632 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 15:47:20,632 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-14 15:47:20,633 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-14 15:47:20,633 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 [2019-01-14 15:47:20,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 15:47:20,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 15:47:20,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 15:47:20,716 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 15:47:20,717 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 15:47:20,717 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2019-01-14 15:47:20,777 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1545bfcee/903d90113cf7403d8a29b0cd0001e0c9/FLAGcaaa5160e [2019-01-14 15:47:21,276 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 15:47:21,277 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2019-01-14 15:47:21,291 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1545bfcee/903d90113cf7403d8a29b0cd0001e0c9/FLAGcaaa5160e [2019-01-14 15:47:21,545 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1545bfcee/903d90113cf7403d8a29b0cd0001e0c9 [2019-01-14 15:47:21,549 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 15:47:21,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 15:47:21,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 15:47:21,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 15:47:21,556 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 15:47:21,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:47:21" (1/1) ... [2019-01-14 15:47:21,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b942bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:21, skipping insertion in model container [2019-01-14 15:47:21,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:47:21" (1/1) ... [2019-01-14 15:47:21,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 15:47:21,622 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 15:47:22,052 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 15:47:22,064 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 15:47:22,207 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 15:47:22,283 INFO L195 MainTranslator]: Completed translation [2019-01-14 15:47:22,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:22 WrapperNode [2019-01-14 15:47:22,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 15:47:22,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 15:47:22,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 15:47:22,285 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 15:47:22,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:22" (1/1) ... [2019-01-14 15:47:22,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:22" (1/1) ... [2019-01-14 15:47:22,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 15:47:22,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 15:47:22,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 15:47:22,348 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 15:47:22,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:22" (1/1) ... [2019-01-14 15:47:22,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:22" (1/1) ... [2019-01-14 15:47:22,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:22" (1/1) ... [2019-01-14 15:47:22,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:22" (1/1) ... [2019-01-14 15:47:22,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:22" (1/1) ... [2019-01-14 15:47:22,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:22" (1/1) ... [2019-01-14 15:47:22,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:22" (1/1) ... [2019-01-14 15:47:22,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 15:47:22,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 15:47:22,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 15:47:22,375 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 15:47:22,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 15:47:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-14 15:47:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 15:47:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-01-14 15:47:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 15:47:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 15:47:22,775 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 15:47:22,776 INFO L286 CfgBuilder]: Removed 10 assue(true) statements. [2019-01-14 15:47:22,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:47:22 BoogieIcfgContainer [2019-01-14 15:47:22,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 15:47:22,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 15:47:22,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 15:47:22,782 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 15:47:22,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 03:47:21" (1/3) ... [2019-01-14 15:47:22,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3ba367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 03:47:22, skipping insertion in model container [2019-01-14 15:47:22,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:47:22" (2/3) ... [2019-01-14 15:47:22,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3ba367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 03:47:22, skipping insertion in model container [2019-01-14 15:47:22,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:47:22" (3/3) ... [2019-01-14 15:47:22,786 INFO L112 eAbstractionObserver]: Analyzing ICFG fo_test_true-termination.c_false-unreach-call.i [2019-01-14 15:47:22,798 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 15:47:22,806 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 15:47:22,825 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 15:47:22,864 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 15:47:22,864 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 15:47:22,865 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 15:47:22,865 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 15:47:22,866 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 15:47:22,866 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 15:47:22,866 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 15:47:22,866 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 15:47:22,867 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 15:47:22,880 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-01-14 15:47:22,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 15:47:22,885 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 15:47:22,886 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 15:47:22,888 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 15:47:22,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 15:47:22,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965446, now seen corresponding path program 1 times [2019-01-14 15:47:22,897 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-14 15:47:22,898 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2019-01-14 15:47:22,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 15:47:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 15:47:22,974 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 15:47:23,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 15:47:23,029 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-14 15:47:23,033 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 15:47:23,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 15:47:23,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 15:47:23,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 15:47:23,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 15:47:23,051 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2019-01-14 15:47:23,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 15:47:23,106 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-01-14 15:47:23,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 15:47:23,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-01-14 15:47:23,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 15:47:23,118 INFO L225 Difference]: With dead ends: 23 [2019-01-14 15:47:23,118 INFO L226 Difference]: Without dead ends: 8 [2019-01-14 15:47:23,121 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 15:47:23,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-14 15:47:23,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-14 15:47:23,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-14 15:47:23,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-01-14 15:47:23,155 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2019-01-14 15:47:23,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 15:47:23,156 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-01-14 15:47:23,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 15:47:23,156 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-01-14 15:47:23,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 15:47:23,157 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 15:47:23,157 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 15:47:23,157 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 15:47:23,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 15:47:23,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812488, now seen corresponding path program 1 times [2019-01-14 15:47:23,159 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-14 15:47:23,159 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2019-01-14 15:47:23,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 15:47:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 15:47:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 15:47:23,315 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 15:47:23,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 03:47:23 BoogieIcfgContainer [2019-01-14 15:47:23,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 15:47:23,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 15:47:23,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 15:47:23,353 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 15:47:23,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:47:22" (3/4) ... [2019-01-14 15:47:23,359 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 15:47:23,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 15:47:23,360 INFO L168 Benchmark]: Toolchain (without parser) took 1810.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -114.5 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. [2019-01-14 15:47:23,362 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 15:47:23,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -173.9 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2019-01-14 15:47:23,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.79 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. [2019-01-14 15:47:23,364 INFO L168 Benchmark]: Boogie Preprocessor took 26.95 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. [2019-01-14 15:47:23,366 INFO L168 Benchmark]: RCFGBuilder took 402.71 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. [2019-01-14 15:47:23,366 INFO L168 Benchmark]: TraceAbstraction took 573.78 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: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. [2019-01-14 15:47:23,368 INFO L168 Benchmark]: Witness Printer took 6.21 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. [2019-01-14 15:47:23,373 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 732.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -173.9 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.79 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 26.95 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 402.71 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 573.78 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: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. * Witness Printer took 6.21 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. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 5 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...