./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer --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 bdc5f20645b6035e443a85580281230285a361ed ......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:09:21,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:09:21,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:09:21,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:09:21,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:09:21,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:09:21,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:09:21,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:09:21,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:09:21,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:09:21,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:09:21,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:09:21,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:09:21,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:09:21,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:09:21,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:09:21,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:09:21,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:09:21,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:09:21,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:09:21,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:09:21,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:09:21,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:09:21,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:09:21,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:09:21,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:09:21,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:09:21,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:09:21,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:09:21,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:09:21,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:09:21,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:09:21,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:09:21,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:09:21,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:09:21,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:09:21,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:09:21,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:09:21,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:09:21,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:09:21,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:09:21,951 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:09:21,984 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:09:21,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:09:21,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:09:21,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:09:21,986 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:09:21,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:09:21,987 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:09:21,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:09:21,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:09:21,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:09:21,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:09:21,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:09:21,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:09:21,989 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:09:21,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:09:21,989 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:09:21,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:09:21,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:09:21,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:09:21,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:09:21,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:09:21,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:09:21,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:09:21,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:09:21,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:09:21,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:09:21,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:09:21,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:09:21,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:09:21,994 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:/tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdc5f20645b6035e443a85580281230285a361ed [2020-11-29 20:09:22,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:09:22,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:09:22,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:09:22,329 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:09:22,330 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:09:22,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2020-11-29 20:09:22,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer/data/572a7c822/01c773b4e7ce4d8dbd45b9671fa674f8/FLAG43f254b03 [2020-11-29 20:09:22,976 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:09:22,977 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2020-11-29 20:09:22,984 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer/data/572a7c822/01c773b4e7ce4d8dbd45b9671fa674f8/FLAG43f254b03 [2020-11-29 20:09:23,352 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer/data/572a7c822/01c773b4e7ce4d8dbd45b9671fa674f8 [2020-11-29 20:09:23,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:09:23,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:09:23,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:09:23,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:09:23,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:09:23,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:09:23" (1/1) ... [2020-11-29 20:09:23,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd00fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23, skipping insertion in model container [2020-11-29 20:09:23,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:09:23" (1/1) ... [2020-11-29 20:09:23,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:09:23,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:09:23,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:09:23,658 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:09:23,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:09:23,704 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:09:23,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23 WrapperNode [2020-11-29 20:09:23,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:09:23,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:09:23,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:09:23,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:09:23,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23" (1/1) ... [2020-11-29 20:09:23,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23" (1/1) ... [2020-11-29 20:09:23,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:09:23,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:09:23,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:09:23,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:09:23,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23" (1/1) ... [2020-11-29 20:09:23,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23" (1/1) ... [2020-11-29 20:09:23,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23" (1/1) ... [2020-11-29 20:09:23,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23" (1/1) ... [2020-11-29 20:09:23,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23" (1/1) ... [2020-11-29 20:09:23,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23" (1/1) ... [2020-11-29 20:09:23,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23" (1/1) ... [2020-11-29 20:09:23,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:09:23,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:09:23,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:09:23,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:09:23,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/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 [2020-11-29 20:09:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:09:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:09:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:09:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:09:24,155 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:09:24,155 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-29 20:09:24,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:09:24 BoogieIcfgContainer [2020-11-29 20:09:24,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:09:24,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:09:24,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:09:24,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:09:24,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:09:23" (1/3) ... [2020-11-29 20:09:24,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c24aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:09:24, skipping insertion in model container [2020-11-29 20:09:24,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:23" (2/3) ... [2020-11-29 20:09:24,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c24aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:09:24, skipping insertion in model container [2020-11-29 20:09:24,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:09:24" (3/3) ... [2020-11-29 20:09:24,184 INFO L111 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2020-11-29 20:09:24,197 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:09:24,202 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 20:09:24,216 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 20:09:24,251 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:09:24,252 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:09:24,255 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:09:24,255 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:09:24,255 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:09:24,255 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:09:24,255 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:09:24,256 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:09:24,286 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-11-29 20:09:24,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 20:09:24,309 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:09:24,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:09:24,310 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:09:24,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:24,317 INFO L82 PathProgramCache]: Analyzing trace with hash 889538503, now seen corresponding path program 1 times [2020-11-29 20:09:24,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:24,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501455484] [2020-11-29 20:09:24,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:24,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:09:24,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501455484] [2020-11-29 20:09:24,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:09:24,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:09:24,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834033431] [2020-11-29 20:09:24,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:09:24,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:09:24,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:09:24,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:09:24,677 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2020-11-29 20:09:24,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:09:24,763 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2020-11-29 20:09:24,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:09:24,765 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-29 20:09:24,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:09:24,775 INFO L225 Difference]: With dead ends: 28 [2020-11-29 20:09:24,776 INFO L226 Difference]: Without dead ends: 14 [2020-11-29 20:09:24,779 INFO L677 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 [2020-11-29 20:09:24,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-11-29 20:09:24,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-11-29 20:09:24,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-29 20:09:24,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-11-29 20:09:24,823 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 6 [2020-11-29 20:09:24,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:09:24,823 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-11-29 20:09:24,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:09:24,824 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-29 20:09:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 20:09:24,825 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:09:24,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:09:24,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:09:24,826 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:09:24,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:24,827 INFO L82 PathProgramCache]: Analyzing trace with hash 148195689, now seen corresponding path program 1 times [2020-11-29 20:09:24,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:24,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627717600] [2020-11-29 20:09:24,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:24,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:09:24,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627717600] [2020-11-29 20:09:24,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:09:24,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:09:24,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049828438] [2020-11-29 20:09:24,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:09:24,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:09:24,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:09:24,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:09:24,961 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 4 states. [2020-11-29 20:09:25,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:09:25,027 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-11-29 20:09:25,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:09:25,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-29 20:09:25,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:09:25,029 INFO L225 Difference]: With dead ends: 15 [2020-11-29 20:09:25,029 INFO L226 Difference]: Without dead ends: 13 [2020-11-29 20:09:25,030 INFO L677 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 [2020-11-29 20:09:25,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-29 20:09:25,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-11-29 20:09:25,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 20:09:25,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-11-29 20:09:25,035 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2020-11-29 20:09:25,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:09:25,036 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-11-29 20:09:25,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:09:25,040 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-29 20:09:25,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:09:25,041 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:09:25,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:09:25,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:09:25,044 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:09:25,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:25,048 INFO L82 PathProgramCache]: Analyzing trace with hash 682324909, now seen corresponding path program 1 times [2020-11-29 20:09:25,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:09:25,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110234863] [2020-11-29 20:09:25,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:09:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:09:25,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110234863] [2020-11-29 20:09:25,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:09:25,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:09:25,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842699033] [2020-11-29 20:09:25,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:09:25,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:09:25,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:09:25,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:09:25,196 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 5 states. [2020-11-29 20:09:25,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:09:25,379 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2020-11-29 20:09:25,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 20:09:25,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-29 20:09:25,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:09:25,380 INFO L225 Difference]: With dead ends: 21 [2020-11-29 20:09:25,380 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:09:25,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:09:25,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:09:25,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:09:25,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:09:25,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:09:25,382 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-29 20:09:25,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:09:25,383 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:09:25,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:09:25,383 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:09:25,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:09:25,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:09:25,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:09:25,645 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2020-11-29 20:09:25,653 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:09:25,653 INFO L270 CegarLoopResult]: At program point L69(lines 39 89) the Hoare annotation is: (let ((.cse0 (< 0 (+ ULTIMATE.start_main_~main__i~0 1))) (.cse1 (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__nlen~0))) (or (and .cse0 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 0)) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0)) .cse1) (and .cse0 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1) .cse1))) [2020-11-29 20:09:25,653 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:09:25,653 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:09:25,654 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:09:25,654 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:09:25,654 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-29 20:09:25,654 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-11-29 20:09:25,654 INFO L274 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-11-29 20:09:25,655 INFO L274 CegarLoopResult]: For program point L33(lines 33 89) no Hoare annotation was computed. [2020-11-29 20:09:25,655 INFO L274 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-11-29 20:09:25,655 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:09:25,655 INFO L274 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-11-29 20:09:25,655 INFO L274 CegarLoopResult]: For program point L4-5(line 4) no Hoare annotation was computed. [2020-11-29 20:09:25,655 INFO L270 CegarLoopResult]: At program point L95(lines 14 102) the Hoare annotation is: (< 0 (+ ULTIMATE.start_main_~main__i~0 1)) [2020-11-29 20:09:25,655 INFO L274 CegarLoopResult]: For program point L62(lines 62 70) no Hoare annotation was computed. [2020-11-29 20:09:25,656 INFO L270 CegarLoopResult]: At program point L79(lines 52 87) the Hoare annotation is: (and (< 0 (+ ULTIMATE.start_main_~main__i~0 1)) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 0)) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__nlen~0) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~1 0))) [2020-11-29 20:09:25,656 INFO L274 CegarLoopResult]: For program point L46(lines 46 87) no Hoare annotation was computed. [2020-11-29 20:09:25,656 INFO L277 CegarLoopResult]: At program point L100(lines 13 102) the Hoare annotation is: true [2020-11-29 20:09:25,656 INFO L274 CegarLoopResult]: For program point L26(lines 26 96) no Hoare annotation was computed. [2020-11-29 20:09:25,656 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 20:09:25,657 INFO L274 CegarLoopResult]: For program point L76(lines 76 85) no Hoare annotation was computed. [2020-11-29 20:09:25,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:09:25 BoogieIcfgContainer [2020-11-29 20:09:25,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:09:25,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:09:25,689 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:09:25,690 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:09:25,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:09:24" (3/4) ... [2020-11-29 20:09:25,694 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:09:25,710 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 20:09:25,711 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:09:25,711 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:09:25,711 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:09:25,790 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0237f145-824c-4063-b7a6-58524072bada/bin/uautomizer/witness.graphml [2020-11-29 20:09:25,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:09:25,793 INFO L168 Benchmark]: Toolchain (without parser) took 2429.01 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 73.8 MB in the beginning and 90.0 MB in the end (delta: -16.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:09:25,794 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory is still 60.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:09:25,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.10 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 76.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:09:25,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.11 ms. Allocated memory is still 100.7 MB. Free memory was 76.4 MB in the beginning and 74.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:09:25,797 INFO L168 Benchmark]: Boogie Preprocessor took 24.03 ms. Allocated memory is still 100.7 MB. Free memory was 74.8 MB in the beginning and 73.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:09:25,797 INFO L168 Benchmark]: RCFGBuilder took 384.42 ms. Allocated memory is still 100.7 MB. Free memory was 73.7 MB in the beginning and 60.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:09:25,798 INFO L168 Benchmark]: TraceAbstraction took 1528.54 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 60.5 MB in the beginning and 93.2 MB in the end (delta: -32.7 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:09:25,799 INFO L168 Benchmark]: Witness Printer took 101.80 ms. Allocated memory is still 123.7 MB. Free memory was 93.2 MB in the beginning and 90.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:09:25,811 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory is still 60.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 335.10 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 76.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.11 ms. Allocated memory is still 100.7 MB. Free memory was 76.4 MB in the beginning and 74.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.03 ms. Allocated memory is still 100.7 MB. Free memory was 74.8 MB in the beginning and 73.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 384.42 ms. Allocated memory is still 100.7 MB. Free memory was 73.7 MB in the beginning and 60.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1528.54 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 60.5 MB in the beginning and 93.2 MB in the end (delta: -32.7 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. * Witness Printer took 101.80 ms. Allocated memory is still 123.7 MB. Free memory was 93.2 MB in the beginning and 90.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 < main__i + 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((0 < main__i + 1 && !(__VERIFIER_assert__cond == 0)) && main__i < main__nlen) && !(__VERIFIER_assert__cond == 0) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((0 < main__i + 1 && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__i < main__nlen) || ((0 < main__i + 1 && __VERIFIER_assert__cond == 1) && main__i < main__nlen) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 53 SDslu, 20 SDs, 0 SdLazy, 57 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 53 HoareAnnotationTreeSize, 4 FomulaSimplifications, 138 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 44 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 610 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...