./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i --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_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8a833a1b9e7471f6481f3d298fb7b827e4068305 .......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:39:27,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:39:27,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:39:27,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:39:27,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:39:27,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:39:27,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:39:27,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:39:27,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:39:27,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:39:27,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:39:27,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:39:27,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:39:27,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:39:27,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:39:27,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:39:27,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:39:27,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:39:27,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:39:27,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:39:27,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:39:27,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:39:27,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:39:27,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:39:27,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:39:27,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:39:27,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:39:27,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:39:27,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:39:27,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:39:27,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:39:27,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:39:27,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:39:27,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:39:27,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:39:27,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:39:27,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:39:27,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:39:27,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:39:27,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:39:27,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:39:27,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:39:27,216 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:39:27,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:39:27,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:39:27,217 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:39:27,217 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:39:27,217 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:39:27,218 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:39:27,218 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:39:27,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:39:27,218 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:39:27,219 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:39:27,219 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:39:27,219 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:39:27,219 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:39:27,220 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:39:27,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:39:27,221 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:39:27,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:39:27,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:39:27,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:39:27,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:39:27,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:39:27,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:39:27,222 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:39:27,222 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:39:27,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:39:27,223 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:39:27,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:39:27,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:39:27,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:39:27,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:39:27,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:39:27,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:39:27,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:39:27,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:39:27,225 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:39:27,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:39:27,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:39:27,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:39:27,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:39:27,226 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a833a1b9e7471f6481f3d298fb7b827e4068305 [2020-11-30 01:39:27,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:39:27,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:39:27,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:39:27,493 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:39:27,494 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:39:27,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i [2020-11-30 01:39:27,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/data/dd1641d45/42f26684851f4478ab53c701edf53aeb/FLAG9ae27f977 [2020-11-30 01:39:28,214 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:39:28,214 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i [2020-11-30 01:39:28,220 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/data/dd1641d45/42f26684851f4478ab53c701edf53aeb/FLAG9ae27f977 [2020-11-30 01:39:28,605 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/data/dd1641d45/42f26684851f4478ab53c701edf53aeb [2020-11-30 01:39:28,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:39:28,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:39:28,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:39:28,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:39:28,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:39:28,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:39:28" (1/1) ... [2020-11-30 01:39:28,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ab3229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28, skipping insertion in model container [2020-11-30 01:39:28,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:39:28" (1/1) ... [2020-11-30 01:39:28,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:39:28,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:39:28,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:39:28,854 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:39:28,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:39:28,888 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:39:28,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28 WrapperNode [2020-11-30 01:39:28,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:39:28,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:39:28,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:39:28,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:39:28,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28" (1/1) ... [2020-11-30 01:39:28,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28" (1/1) ... [2020-11-30 01:39:28,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:39:28,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:39:28,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:39:28,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:39:28,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28" (1/1) ... [2020-11-30 01:39:28,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28" (1/1) ... [2020-11-30 01:39:28,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28" (1/1) ... [2020-11-30 01:39:28,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28" (1/1) ... [2020-11-30 01:39:28,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28" (1/1) ... [2020-11-30 01:39:28,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28" (1/1) ... [2020-11-30 01:39:28,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28" (1/1) ... [2020-11-30 01:39:28,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:39:28,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:39:28,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:39:28,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:39:28,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/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 [2020-11-30 01:39:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:39:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:39:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:39:29,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:39:29,302 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:39:29,302 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 01:39:29,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:39:29 BoogieIcfgContainer [2020-11-30 01:39:29,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:39:29,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:39:29,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:39:29,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:39:29,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:39:28" (1/3) ... [2020-11-30 01:39:29,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782378c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:39:29, skipping insertion in model container [2020-11-30 01:39:29,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:39:28" (2/3) ... [2020-11-30 01:39:29,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782378c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:39:29, skipping insertion in model container [2020-11-30 01:39:29,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:39:29" (3/3) ... [2020-11-30 01:39:29,333 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark37_conjunctive.i [2020-11-30 01:39:29,346 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:39:29,352 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:39:29,367 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:39:29,395 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:39:29,395 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:39:29,396 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:39:29,396 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:39:29,396 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:39:29,396 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:39:29,397 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:39:29,397 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:39:29,411 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-30 01:39:29,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:39:29,416 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:39:29,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:39:29,418 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:39:29,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:39:29,424 INFO L82 PathProgramCache]: Analyzing trace with hash 2011779439, now seen corresponding path program 1 times [2020-11-30 01:39:29,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:39:29,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832501469] [2020-11-30 01:39:29,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:39:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:39:29,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:39:29,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832501469] [2020-11-30 01:39:29,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:39:29,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:39:29,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872305059] [2020-11-30 01:39:29,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:39:29,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:39:29,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:39:29,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:39:29,716 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-11-30 01:39:29,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:39:29,789 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2020-11-30 01:39:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:39:29,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-30 01:39:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:39:29,799 INFO L225 Difference]: With dead ends: 23 [2020-11-30 01:39:29,799 INFO L226 Difference]: Without dead ends: 8 [2020-11-30 01:39:29,815 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 [2020-11-30 01:39:29,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-30 01:39:29,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-30 01:39:29,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-30 01:39:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-11-30 01:39:29,849 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2020-11-30 01:39:29,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:39:29,849 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-11-30 01:39:29,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:39:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-11-30 01:39:29,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:39:29,850 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:39:29,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:39:29,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:39:29,851 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:39:29,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:39:29,852 INFO L82 PathProgramCache]: Analyzing trace with hash -2082797155, now seen corresponding path program 1 times [2020-11-30 01:39:29,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:39:29,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959771798] [2020-11-30 01:39:29,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:39:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:39:29,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:39:29,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959771798] [2020-11-30 01:39:29,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070965758] [2020-11-30 01:39:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:39:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:39:29,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 01:39:29,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:39:30,050 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:39:30,062 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:39:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:39:30,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:39:30,109 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:39:30,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:39:30,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1988824364] [2020-11-30 01:39:30,194 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-11-30 01:39:30,195 INFO L166 IcfgInterpreter]: Building call graph [2020-11-30 01:39:30,201 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-30 01:39:30,209 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-30 01:39:30,210 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-30 01:39:30,442 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-30 01:39:30,605 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-11-30 01:39:30,770 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2020-11-30 01:39:30,946 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-11-30 01:39:30,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-30 01:39:30,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5] total 10 [2020-11-30 01:39:30,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861921746] [2020-11-30 01:39:30,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:39:30,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:39:30,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:39:30,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:39:30,952 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2020-11-30 01:39:30,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:39:30,976 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2020-11-30 01:39:30,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:39:30,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-30 01:39:30,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:39:30,978 INFO L225 Difference]: With dead ends: 8 [2020-11-30 01:39:30,978 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:39:30,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:39:30,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:39:30,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:39:30,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:39:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:39:30,980 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-11-30 01:39:30,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:39:30,980 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:39:30,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:39:30,980 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:39:30,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:39:31,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-30 01:39:31,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:39:31,284 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:39:31,284 INFO L270 CegarLoopResult]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string0.base|))) (and (= |#t~string1.offset| 0) (= (select |#length| |#t~string1.base|) 26) (= |#NULL.base| 0) (= (select .cse0 |#t~string0.offset|) 48) (= (select .cse0 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (= 2 (select |#length| |#t~string0.base|)) (<= ULTIMATE.start_main_~y~0 2147483647) (< |#StackHeapBarrier| |#t~string0.base|) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0) (<= 0 ULTIMATE.start_main_~x~0) (= (select |#valid| |#t~string0.base|) 1) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |#t~string1.base|) (= |#NULL.offset| 0) (= (select |#valid| |#t~string1.base|) 1) (= |#t~string0.offset| 0))) [2020-11-30 01:39:31,285 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-30 01:39:31,285 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-30 01:39:31,285 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-11-30 01:39:31,285 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:39:31,285 INFO L277 CegarLoopResult]: At program point L28(lines 19 29) the Hoare annotation is: true [2020-11-30 01:39:31,285 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2020-11-30 01:39:31,285 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-11-30 01:39:31,286 INFO L274 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-11-30 01:39:31,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:39:31,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:39:31,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:31,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:31,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:39:31,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:39:31,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:39:31,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:39:31,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:39:31,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:39:31,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:39:31,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:31,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:31,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:39:31,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:39:31,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:39:31,323 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:39:31,323 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:39:31,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:39:31 BoogieIcfgContainer [2020-11-30 01:39:31,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:39:31,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:39:31,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:39:31,331 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:39:31,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:39:29" (3/4) ... [2020-11-30 01:39:31,337 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:39:31,349 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-30 01:39:31,349 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 01:39:31,350 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:39:31,350 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:39:31,415 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_aef69715-6bfe-4110-bb7b-410a0edae2eb/bin/utaipan/witness.graphml [2020-11-30 01:39:31,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:39:31,426 INFO L168 Benchmark]: Toolchain (without parser) took 2806.57 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 53.9 MB in the beginning and 63.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:39:31,428 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 41.0 MB in the beginning and 40.9 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:39:31,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.91 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 53.9 MB in the beginning and 94.6 MB in the end (delta: -40.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:39:31,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.62 ms. Allocated memory is still 117.4 MB. Free memory was 94.6 MB in the beginning and 93.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:39:31,437 INFO L168 Benchmark]: Boogie Preprocessor took 23.66 ms. Allocated memory is still 117.4 MB. Free memory was 93.4 MB in the beginning and 92.5 MB in the end (delta: 873.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:39:31,438 INFO L168 Benchmark]: RCFGBuilder took 350.08 ms. Allocated memory is still 117.4 MB. Free memory was 92.1 MB in the beginning and 79.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:39:31,438 INFO L168 Benchmark]: TraceAbstraction took 2023.87 ms. Allocated memory is still 117.4 MB. Free memory was 78.7 MB in the beginning and 66.0 MB in the end (delta: 12.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:39:31,438 INFO L168 Benchmark]: Witness Printer took 91.55 ms. Allocated memory is still 117.4 MB. Free memory was 66.0 MB in the beginning and 63.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:39:31,441 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 41.0 MB in the beginning and 40.9 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.91 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 53.9 MB in the beginning and 94.6 MB in the end (delta: -40.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.62 ms. Allocated memory is still 117.4 MB. Free memory was 94.6 MB in the beginning and 93.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.66 ms. Allocated memory is still 117.4 MB. Free memory was 93.4 MB in the beginning and 92.5 MB in the end (delta: 873.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 350.08 ms. Allocated memory is still 117.4 MB. Free memory was 92.1 MB in the beginning and 79.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2023.87 ms. Allocated memory is still 117.4 MB. Free memory was 78.7 MB in the beginning and 66.0 MB in the end (delta: 12.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * Witness Printer took 91.55 ms. Allocated memory is still 117.4 MB. Free memory was 66.0 MB in the beginning and 63.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: 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: 23]: Loop Invariant [2020-11-30 01:39:31,449 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:39:31,450 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:39:31,450 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:31,450 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:31,450 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:39:31,451 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:39:31,451 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:39:31,451 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:39:31,451 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:39:31,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:39:31,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-30 01:39:31,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:31,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-30 01:39:31,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:39:31,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:39:31,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:39:31,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-30 01:39:31,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((((((((((((("benchmark37_conjunctive.c" == 0 && unknown-#length-unknown["benchmark37_conjunctive.c"] == 26) && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && 2 == unknown-#length-unknown["0"]) && y <= 2147483647) && unknown-#StackHeapBarrier-unknown < "0") && y == x) && 0 <= x) && \valid["0"] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "benchmark37_conjunctive.c") && #NULL == 0) && \valid["benchmark37_conjunctive.c"] == 1) && "0" == 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 12 SDslu, 13 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 73 HoareAnnotationTreeSize, 2 FomulaSimplifications, 76 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 296 SizeOfPredicates, 5 NumberOfNonLiveVariables, 46 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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: OVERALL_TIME[ms]: 249, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 5, TOOLS_POST_TIME[ms]: 156, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 5, TOOLS_QUANTIFIERELIM_TIME[ms]: 153, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 150, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 13, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 4, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 35, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 9, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 9, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 3, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 2, DAG_COMPRESSION_TIME[ms]: 12, DAG_COMPRESSION_PROCESSED_NODES: 41, DAG_COMPRESSION_RETAINED_NODES: 20, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...