./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.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 d1ac99cc75dda278b7c98c2e87fcb53ba1667d29 .................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:15:52,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:15:52,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:15:52,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:15:52,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:15:52,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:15:52,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:15:52,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:15:52,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:15:52,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:15:52,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:15:52,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:15:52,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:15:52,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:15:52,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:15:52,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:15:52,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:15:52,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:15:52,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:15:52,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:15:52,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:15:52,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:15:52,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:15:52,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:15:52,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:15:52,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:15:52,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:15:52,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:15:52,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:15:52,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:15:52,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:15:52,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:15:52,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:15:52,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:15:52,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:15:52,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:15:52,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:15:52,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:15:52,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:15:52,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:15:52,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:15:52,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:15:52,919 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:15:52,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:15:52,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:15:52,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:15:52,921 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:15:52,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:15:52,921 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:15:52,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:15:52,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:15:52,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:15:52,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:15:52,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:15:52,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:15:52,923 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:15:52,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:15:52,923 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:15:52,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:15:52,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:15:52,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:15:52,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:15:52,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:15:52,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:15:52,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:15:52,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:15:52,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:15:52,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:15:52,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:15:52,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:15:52,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:15:52,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(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 -> d1ac99cc75dda278b7c98c2e87fcb53ba1667d29 [2020-10-20 01:15:53,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:15:53,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:15:53,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:15:53,143 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:15:53,144 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:15:53,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.c [2020-10-20 01:15:53,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9ef8e2ff/5dbadda9d5ed4434bdc61b1d6e4f3ece/FLAGc1595935a [2020-10-20 01:15:53,688 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:15:53,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.c [2020-10-20 01:15:53,696 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9ef8e2ff/5dbadda9d5ed4434bdc61b1d6e4f3ece/FLAGc1595935a [2020-10-20 01:15:54,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9ef8e2ff/5dbadda9d5ed4434bdc61b1d6e4f3ece [2020-10-20 01:15:54,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:15:54,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:15:54,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:15:54,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:15:54,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:15:54,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:15:54" (1/1) ... [2020-10-20 01:15:54,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74fa7c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54, skipping insertion in model container [2020-10-20 01:15:54,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:15:54" (1/1) ... [2020-10-20 01:15:54,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:15:54,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:15:54,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:15:54,405 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:15:54,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:15:54,441 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:15:54,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54 WrapperNode [2020-10-20 01:15:54,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:15:54,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:15:54,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:15:54,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:15:54,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54" (1/1) ... [2020-10-20 01:15:54,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54" (1/1) ... [2020-10-20 01:15:54,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:15:54,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:15:54,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:15:54,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:15:54,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54" (1/1) ... [2020-10-20 01:15:54,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54" (1/1) ... [2020-10-20 01:15:54,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54" (1/1) ... [2020-10-20 01:15:54,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54" (1/1) ... [2020-10-20 01:15:54,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54" (1/1) ... [2020-10-20 01:15:54,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54" (1/1) ... [2020-10-20 01:15:54,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54" (1/1) ... [2020-10-20 01:15:54,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:15:54,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:15:54,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:15:54,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:15:54,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54" (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 [2020-10-20 01:15:54,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:15:54,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:15:54,832 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:15:54,832 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-10-20 01:15:54,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:15:54 BoogieIcfgContainer [2020-10-20 01:15:54,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:15:54,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:15:54,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:15:54,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:15:54,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:15:54" (1/3) ... [2020-10-20 01:15:54,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28bef55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:15:54, skipping insertion in model container [2020-10-20 01:15:54,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:54" (2/3) ... [2020-10-20 01:15:54,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28bef55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:15:54, skipping insertion in model container [2020-10-20 01:15:54,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:15:54" (3/3) ... [2020-10-20 01:15:54,843 INFO L111 eAbstractionObserver]: Analyzing ICFG hard2_unwindbound20.c [2020-10-20 01:15:54,856 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:15:54,863 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-20 01:15:54,882 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-20 01:15:54,912 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:15:54,913 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:15:54,913 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:15:54,913 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:15:54,913 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:15:54,913 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:15:54,913 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:15:54,913 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:15:54,931 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-20 01:15:54,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:15:54,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 25 states. [2020-10-20 01:15:55,018 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:15:55,018 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:15:55,018 INFO L274 CegarLoopResult]: For program point L14(lines 14 17) no Hoare annotation was computed. [2020-10-20 01:15:55,019 INFO L277 CegarLoopResult]: At program point L14-1(lines 13 19) the Hoare annotation is: true [2020-10-20 01:15:55,019 INFO L274 CegarLoopResult]: For program point L14-2(lines 14 17) no Hoare annotation was computed. [2020-10-20 01:15:55,019 INFO L277 CegarLoopResult]: At program point L14-3(lines 13 19) the Hoare annotation is: true [2020-10-20 01:15:55,019 INFO L274 CegarLoopResult]: For program point L14-4(lines 14 17) no Hoare annotation was computed. [2020-10-20 01:15:55,019 INFO L277 CegarLoopResult]: At program point L14-5(line 37) the Hoare annotation is: true [2020-10-20 01:15:55,020 INFO L274 CegarLoopResult]: For program point L14-6(lines 14 17) no Hoare annotation was computed. [2020-10-20 01:15:55,020 INFO L277 CegarLoopResult]: At program point L14-7(lines 13 19) the Hoare annotation is: true [2020-10-20 01:15:55,020 INFO L274 CegarLoopResult]: For program point L14-8(lines 14 17) no Hoare annotation was computed. [2020-10-20 01:15:55,020 INFO L277 CegarLoopResult]: At program point L14-9(line 47) the Hoare annotation is: true [2020-10-20 01:15:55,020 INFO L274 CegarLoopResult]: For program point L14-10(lines 14 17) no Hoare annotation was computed. [2020-10-20 01:15:55,021 INFO L277 CegarLoopResult]: At program point L14-11(lines 13 19) the Hoare annotation is: true [2020-10-20 01:15:55,021 INFO L274 CegarLoopResult]: For program point L14-12(lines 14 17) no Hoare annotation was computed. [2020-10-20 01:15:55,021 INFO L277 CegarLoopResult]: At program point L14-13(lines 13 19) the Hoare annotation is: true [2020-10-20 01:15:55,021 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:15:55,021 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:15:55,022 INFO L274 CegarLoopResult]: For program point L33-1(lines 33 41) no Hoare annotation was computed. [2020-10-20 01:15:55,022 INFO L277 CegarLoopResult]: At program point L33-3(lines 33 41) the Hoare annotation is: true [2020-10-20 01:15:55,022 INFO L277 CegarLoopResult]: At program point L59(lines 22 60) the Hoare annotation is: true [2020-10-20 01:15:55,022 INFO L274 CegarLoopResult]: For program point L51(lines 51 54) no Hoare annotation was computed. [2020-10-20 01:15:55,022 INFO L274 CegarLoopResult]: For program point L51-2(lines 22 60) no Hoare annotation was computed. [2020-10-20 01:15:55,023 INFO L274 CegarLoopResult]: For program point L43(lines 43 55) no Hoare annotation was computed. [2020-10-20 01:15:55,023 INFO L274 CegarLoopResult]: For program point L43-2(lines 43 55) no Hoare annotation was computed. [2020-10-20 01:15:55,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:15:55 BoogieIcfgContainer [2020-10-20 01:15:55,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:15:55,033 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:15:55,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:15:55,034 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:15:55,035 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:15:54" (3/4) ... [2020-10-20 01:15:55,038 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:15:55,059 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:15:55,060 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:15:55,119 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:15:55,119 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:15:55,122 INFO L168 Benchmark]: Toolchain (without parser) took 1025.07 ms. Allocated memory was 36.2 MB in the beginning and 47.2 MB in the end (delta: 11.0 MB). Free memory was 17.9 MB in the beginning and 26.5 MB in the end (delta: -8.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:15:55,123 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 33.0 MB. Free memory was 8.7 MB in the beginning and 8.6 MB in the end (delta: 52.4 kB). Peak memory consumption was 52.4 kB. Max. memory is 14.3 GB. [2020-10-20 01:15:55,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.12 ms. Allocated memory was 36.2 MB in the beginning and 45.1 MB in the end (delta: 8.9 MB). Free memory was 17.0 MB in the beginning and 26.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:15:55,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.05 ms. Allocated memory is still 45.1 MB. Free memory was 26.5 MB in the beginning and 24.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:15:55,125 INFO L168 Benchmark]: Boogie Preprocessor took 25.65 ms. Allocated memory is still 45.1 MB. Free memory was 24.7 MB in the beginning and 23.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:15:55,126 INFO L168 Benchmark]: RCFGBuilder took 327.18 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 23.4 MB in the beginning and 23.0 MB in the end (delta: 323.0 kB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:15:55,127 INFO L168 Benchmark]: TraceAbstraction took 197.74 ms. Allocated memory is still 47.2 MB. Free memory was 22.4 MB in the beginning and 11.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:15:55,127 INFO L168 Benchmark]: Witness Printer took 86.56 ms. Allocated memory is still 47.2 MB. Free memory was 11.6 MB in the beginning and 26.5 MB in the end (delta: -14.8 MB). Peak memory consumption was 563.8 kB. Max. memory is 14.3 GB. [2020-10-20 01:15:55,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 33.0 MB. Free memory was 8.7 MB in the beginning and 8.6 MB in the end (delta: 52.4 kB). Peak memory consumption was 52.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 339.12 ms. Allocated memory was 36.2 MB in the beginning and 45.1 MB in the end (delta: 8.9 MB). Free memory was 17.0 MB in the beginning and 26.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 38.05 ms. Allocated memory is still 45.1 MB. Free memory was 26.5 MB in the beginning and 24.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 25.65 ms. Allocated memory is still 45.1 MB. Free memory was 24.7 MB in the beginning and 23.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 327.18 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 23.4 MB in the beginning and 23.0 MB in the end (delta: 323.0 kB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 197.74 ms. Allocated memory is still 47.2 MB. Free memory was 22.4 MB in the beginning and 11.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. * Witness Printer took 86.56 ms. Allocated memory is still 47.2 MB. Free memory was 11.6 MB in the beginning and 26.5 MB in the end (delta: -14.8 MB). Peak memory consumption was 563.8 kB. Max. memory is 14.3 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: 47]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 9 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 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...