./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/simple_2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/simple_2-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer --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 d241a4a24d7ed77783d3342cc0956b8336ac1c40 ........................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:50:42,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:50:42,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:50:42,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:50:42,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:50:42,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:50:42,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:50:42,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:50:42,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:50:42,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:50:42,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:50:42,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:50:42,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:50:42,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:50:42,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:50:42,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:50:42,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:50:42,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:50:42,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:50:42,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:50:42,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:50:42,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:50:42,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:50:42,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:50:42,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:50:42,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:50:42,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:50:42,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:50:42,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:50:42,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:50:42,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:50:42,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:50:42,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:50:42,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:50:42,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:50:42,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:50:42,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:50:42,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:50:42,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:50:42,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:50:42,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:50:42,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:50:42,919 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:50:42,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:50:42,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:50:42,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:50:42,920 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:50:42,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:50:42,921 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:50:42,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:50:42,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:50:42,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:50:42,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:50:42,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:50:42,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:50:42,922 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:50:42,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:50:42,922 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:50:42,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:50:42,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:50:42,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:50:42,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:50:42,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:50:42,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:50:42,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:50:42,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:50:42,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:50:42,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:50:42,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:50:42,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:50:42,925 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer 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 -> d241a4a24d7ed77783d3342cc0956b8336ac1c40 [2019-11-25 08:50:43,076 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:50:43,086 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:50:43,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:50:43,091 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:50:43,091 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:50:43,092 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer/../../sv-benchmarks/c/loop-acceleration/simple_2-1.c [2019-11-25 08:50:43,148 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer/data/72226c860/18f4c503e135410f81e2e9e23edb9ee3/FLAGeb2a9f803 [2019-11-25 08:50:43,544 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:50:43,544 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/sv-benchmarks/c/loop-acceleration/simple_2-1.c [2019-11-25 08:50:43,549 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer/data/72226c860/18f4c503e135410f81e2e9e23edb9ee3/FLAGeb2a9f803 [2019-11-25 08:50:43,566 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer/data/72226c860/18f4c503e135410f81e2e9e23edb9ee3 [2019-11-25 08:50:43,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:50:43,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:50:43,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:43,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:50:43,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:50:43,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:43" (1/1) ... [2019-11-25 08:50:43,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50bd8770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43, skipping insertion in model container [2019-11-25 08:50:43,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:43" (1/1) ... [2019-11-25 08:50:43,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:50:43,604 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:50:43,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:43,758 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:50:43,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:43,855 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:50:43,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43 WrapperNode [2019-11-25 08:50:43,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:43,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:43,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:50:43,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:50:43,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43" (1/1) ... [2019-11-25 08:50:43,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43" (1/1) ... [2019-11-25 08:50:43,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:43,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:50:43,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:50:43,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:50:43,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43" (1/1) ... [2019-11-25 08:50:43,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43" (1/1) ... [2019-11-25 08:50:43,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43" (1/1) ... [2019-11-25 08:50:43,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43" (1/1) ... [2019-11-25 08:50:43,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43" (1/1) ... [2019-11-25 08:50:43,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43" (1/1) ... [2019-11-25 08:50:43,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43" (1/1) ... [2019-11-25 08:50:43,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:50:43,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:50:43,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:50:43,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:50:43,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:50:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:50:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:50:44,160 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:50:44,160 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-25 08:50:44,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:44 BoogieIcfgContainer [2019-11-25 08:50:44,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:50:44,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:50:44,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:50:44,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:50:44,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:50:43" (1/3) ... [2019-11-25 08:50:44,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dac5f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:50:44, skipping insertion in model container [2019-11-25 08:50:44,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:43" (2/3) ... [2019-11-25 08:50:44,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dac5f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:50:44, skipping insertion in model container [2019-11-25 08:50:44,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:44" (3/3) ... [2019-11-25 08:50:44,169 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_2-1.c [2019-11-25 08:50:44,178 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:50:44,184 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:50:44,193 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:50:44,214 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:50:44,214 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:50:44,214 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:50:44,215 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:50:44,215 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:50:44,215 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:50:44,215 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:50:44,218 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:50:44,230 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-25 08:50:44,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-25 08:50:44,236 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:44,236 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-25 08:50:44,237 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:44,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:44,243 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-11-25 08:50:44,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:44,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975205623] [2019-11-25 08:50:44,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:44,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:44,385 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975205623] [2019-11-25 08:50:44,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:44,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:50:44,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922135150] [2019-11-25 08:50:44,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:50:44,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:44,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:50:44,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:50:44,411 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-25 08:50:44,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:44,461 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-25 08:50:44,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:50:44,463 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-25 08:50:44,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:44,469 INFO L225 Difference]: With dead ends: 14 [2019-11-25 08:50:44,469 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:50:44,472 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:50:44,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:50:44,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:50:44,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:50:44,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:50:44,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-25 08:50:44,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:44,503 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:50:44,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:50:44,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:50:44,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:50:44,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:50:44,532 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:50:44,532 INFO L444 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-25 08:50:44,532 INFO L440 ceAbstractionStarter]: At program point L5-2(lines 1 19) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< (+ (* 4294967296 (div ULTIMATE.start_main_~x~0 4294967296)) 268435454) ULTIMATE.start_main_~x~0)) [2019-11-25 08:50:44,533 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:50:44,533 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:50:44,533 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-25 08:50:44,533 INFO L447 ceAbstractionStarter]: At program point L14-2(lines 14 16) the Hoare annotation is: true [2019-11-25 08:50:44,533 INFO L444 ceAbstractionStarter]: For program point L14-3(lines 14 16) no Hoare annotation was computed. [2019-11-25 08:50:44,533 INFO L444 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-25 08:50:44,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:50:44 BoogieIcfgContainer [2019-11-25 08:50:44,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:50:44,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:50:44,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:50:44,548 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:50:44,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:44" (3/4) ... [2019-11-25 08:50:44,551 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:50:44,560 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-25 08:50:44,561 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 08:50:44,611 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d805b496-4550-4b49-b08b-cfe508410f27/bin/uautomizer/witness.graphml [2019-11-25 08:50:44,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:50:44,614 INFO L168 Benchmark]: Toolchain (without parser) took 1042.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -172.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:44,614 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:44,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -214.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:44,619 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:44,620 INFO L168 Benchmark]: Boogie Preprocessor took 19.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:44,620 INFO L168 Benchmark]: RCFGBuilder took 253.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:44,622 INFO L168 Benchmark]: TraceAbstraction took 384.61 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:44,622 INFO L168 Benchmark]: Witness Printer took 64.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:44,627 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -214.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 253.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 384.61 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Witness Printer took 64.54 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: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: !(0 == cond) && 4294967296 * (x / 4294967296) + 268435454 < x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 7 SDslu, 3 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 15 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...