./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/nla-digbench-scaling/freire2_unwindbound10.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfedb244e0d879c5f8a4ebdb82e083423734a8b8 .................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 22:37:30,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:37:30,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:37:30,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:37:30,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:37:30,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:37:30,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:37:30,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:37:30,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:37:30,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:37:30,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:37:30,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:37:30,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:37:30,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:37:30,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:37:30,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:37:30,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:37:30,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:37:30,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:37:30,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:37:30,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:37:30,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:37:30,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:37:30,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:37:30,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:37:30,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:37:30,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:37:30,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:37:30,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:37:30,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:37:30,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:37:30,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:37:30,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:37:30,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:37:30,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:37:30,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:37:30,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:37:30,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:37:30,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:37:30,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:37:30,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:37:30,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 22:37:30,727 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:37:30,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:37:30,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:37:30,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:37:30,730 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:37:30,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:37:30,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:37:30,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 22:37:30,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:37:30,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:37:30,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:37:30,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:37:30,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:37:30,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:37:30,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:37:30,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:37:30,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:37:30,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:37:30,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:37:30,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:37:30,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:37:30,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:37:30,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:37:30,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:37:30,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:37:30,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 22:37:30,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 22:37:30,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:37:30,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:37:30,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfedb244e0d879c5f8a4ebdb82e083423734a8b8 [2020-10-25 22:37:31,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:37:31,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:37:31,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:37:31,207 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:37:31,207 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:37:31,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c [2020-10-25 22:37:31,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f97f66361/6c6709fe3b5b45d08dee68cf1248d2a3/FLAG4286bc341 [2020-10-25 22:37:32,023 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:37:32,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound10.c [2020-10-25 22:37:32,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f97f66361/6c6709fe3b5b45d08dee68cf1248d2a3/FLAG4286bc341 [2020-10-25 22:37:32,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f97f66361/6c6709fe3b5b45d08dee68cf1248d2a3 [2020-10-25 22:37:32,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:37:32,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:37:32,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:37:32,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:37:32,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:37:32,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:37:32" (1/1) ... [2020-10-25 22:37:32,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe229d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32, skipping insertion in model container [2020-10-25 22:37:32,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:37:32" (1/1) ... [2020-10-25 22:37:32,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:37:32,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:37:32,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:37:32,646 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:37:32,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:37:32,686 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:37:32,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32 WrapperNode [2020-10-25 22:37:32,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:37:32,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:37:32,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:37:32,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:37:32,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32" (1/1) ... [2020-10-25 22:37:32,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32" (1/1) ... [2020-10-25 22:37:32,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:37:32,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:37:32,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:37:32,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:37:32,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32" (1/1) ... [2020-10-25 22:37:32,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32" (1/1) ... [2020-10-25 22:37:32,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32" (1/1) ... [2020-10-25 22:37:32,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32" (1/1) ... [2020-10-25 22:37:32,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32" (1/1) ... [2020-10-25 22:37:32,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32" (1/1) ... [2020-10-25 22:37:32,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32" (1/1) ... [2020-10-25 22:37:32,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:37:32,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:37:32,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:37:32,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:37:32,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:37:32,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:37:32,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:37:33,118 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:37:33,120 INFO L298 CfgBuilder]: Removed 29 assume(true) statements. [2020-10-25 22:37:33,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:37:33 BoogieIcfgContainer [2020-10-25 22:37:33,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:37:33,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:37:33,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:37:33,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:37:33,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:37:32" (1/3) ... [2020-10-25 22:37:33,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5c1881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:37:33, skipping insertion in model container [2020-10-25 22:37:33,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:37:32" (2/3) ... [2020-10-25 22:37:33,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5c1881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:37:33, skipping insertion in model container [2020-10-25 22:37:33,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:37:33" (3/3) ... [2020-10-25 22:37:33,153 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_unwindbound10.c [2020-10-25 22:37:33,181 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:37:33,192 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-25 22:37:33,228 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-25 22:37:33,296 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:37:33,299 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:37:33,299 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:37:33,299 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:37:33,299 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:37:33,300 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:37:33,300 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:37:33,300 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:37:33,319 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-25 22:37:33,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 22:37:33,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 20 states. [2020-10-25 22:37:33,457 INFO L277 CegarLoopResult]: At program point L48(lines 24 49) the Hoare annotation is: true [2020-10-25 22:37:33,458 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 22:37:33,458 INFO L274 CegarLoopResult]: For program point L32-1(lines 32 42) no Hoare annotation was computed. [2020-10-25 22:37:33,458 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 22:37:33,459 INFO L277 CegarLoopResult]: At program point L32-3(lines 32 42) the Hoare annotation is: true [2020-10-25 22:37:33,459 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 22:37:33,460 INFO L274 CegarLoopResult]: For program point L32-4(lines 32 42) no Hoare annotation was computed. [2020-10-25 22:37:33,460 INFO L274 CegarLoopResult]: For program point L16(lines 16 19) no Hoare annotation was computed. [2020-10-25 22:37:33,461 INFO L277 CegarLoopResult]: At program point L16-1(lines 15 21) the Hoare annotation is: true [2020-10-25 22:37:33,461 INFO L274 CegarLoopResult]: For program point L16-2(lines 16 19) no Hoare annotation was computed. [2020-10-25 22:37:33,462 INFO L277 CegarLoopResult]: At program point L16-3(lines 15 21) the Hoare annotation is: true [2020-10-25 22:37:33,462 INFO L274 CegarLoopResult]: For program point L16-4(lines 16 19) no Hoare annotation was computed. [2020-10-25 22:37:33,462 INFO L277 CegarLoopResult]: At program point L16-5(lines 36 37) the Hoare annotation is: true [2020-10-25 22:37:33,462 INFO L274 CegarLoopResult]: For program point L16-6(lines 16 19) no Hoare annotation was computed. [2020-10-25 22:37:33,463 INFO L277 CegarLoopResult]: At program point L16-7(lines 15 21) the Hoare annotation is: true [2020-10-25 22:37:33,463 INFO L274 CegarLoopResult]: For program point L16-8(lines 16 19) no Hoare annotation was computed. [2020-10-25 22:37:33,464 INFO L277 CegarLoopResult]: At program point L16-9(lines 15 21) the Hoare annotation is: true [2020-10-25 22:37:33,464 INFO L274 CegarLoopResult]: For program point L16-10(lines 16 19) no Hoare annotation was computed. [2020-10-25 22:37:33,465 INFO L277 CegarLoopResult]: At program point L16-11(lines 15 21) the Hoare annotation is: true [2020-10-25 22:37:33,466 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 22:37:33,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:37:33 BoogieIcfgContainer [2020-10-25 22:37:33,479 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 22:37:33,482 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 22:37:33,482 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 22:37:33,483 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 22:37:33,484 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:37:33" (3/4) ... [2020-10-25 22:37:33,491 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 22:37:33,513 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-25 22:37:33,513 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 22:37:33,611 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 22:37:33,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 22:37:33,616 INFO L168 Benchmark]: Toolchain (without parser) took 1228.22 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.1 MB in the beginning and 44.3 MB in the end (delta: -15.1 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-10-25 22:37:33,618 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 52.4 MB. Free memory is still 38.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:37:33,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.16 ms. Allocated memory is still 52.4 MB. Free memory was 28.6 MB in the beginning and 32.0 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-25 22:37:33,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.18 ms. Allocated memory is still 52.4 MB. Free memory was 32.0 MB in the beginning and 30.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:37:33,625 INFO L168 Benchmark]: Boogie Preprocessor took 26.04 ms. Allocated memory is still 52.4 MB. Free memory was 30.4 MB in the beginning and 29.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:37:33,628 INFO L168 Benchmark]: RCFGBuilder took 372.87 ms. Allocated memory is still 52.4 MB. Free memory was 29.3 MB in the beginning and 31.5 MB in the end (delta: -2.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-10-25 22:37:33,629 INFO L168 Benchmark]: TraceAbstraction took 349.75 ms. Allocated memory is still 52.4 MB. Free memory was 31.1 MB in the beginning and 22.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-25 22:37:33,631 INFO L168 Benchmark]: Witness Printer took 129.45 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 22.3 MB in the beginning and 44.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-10-25 22:37:33,639 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 52.4 MB. Free memory is still 38.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 295.16 ms. Allocated memory is still 52.4 MB. Free memory was 28.6 MB in the beginning and 32.0 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.18 ms. Allocated memory is still 52.4 MB. Free memory was 32.0 MB in the beginning and 30.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.04 ms. Allocated memory is still 52.4 MB. Free memory was 30.4 MB in the beginning and 29.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 372.87 ms. Allocated memory is still 52.4 MB. Free memory was 29.3 MB in the beginning and 31.5 MB in the end (delta: -2.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 349.75 ms. Allocated memory is still 52.4 MB. Free memory was 31.1 MB in the beginning and 22.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 129.45 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 22.3 MB in the beginning and 44.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...