./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b10c0555613e3e1e99ee574b69e31152fe0aa7f9 ................................................................................................................................................................................................................................................................................................................................................................... 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 01:24:04,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:24:04,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:24:04,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:24:04,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:24:04,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:24:04,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:24:04,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:24:04,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:24:04,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:24:04,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:24:04,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:24:04,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:24:04,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:24:04,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:24:04,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:24:04,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:24:04,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:24:04,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:24:04,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:24:04,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:24:04,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:24:04,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:24:04,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:24:04,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:24:04,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:24:04,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:24:04,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:24:04,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:24:04,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:24:04,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:24:04,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:24:04,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:24:04,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:24:04,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:24:04,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:24:04,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:24:04,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:24:04,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:24:04,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:24:04,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:24:04,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-30 01:24:04,472 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:24:04,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:24:04,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:24:04,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:24:04,475 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:24:04,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:24:04,475 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:24:04,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:24:04,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:24:04,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:24:04,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:24:04,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:24:04,478 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:24:04,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:24:04,478 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:24:04,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:24:04,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:24:04,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:24:04,479 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:24:04,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:24:04,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:24:04,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:24:04,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:24:04,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:24:04,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:24:04,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:24:04,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:24:04,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:24:04,481 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_709d6ad1-0a95-4187-9f47-8c3080293894/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b10c0555613e3e1e99ee574b69e31152fe0aa7f9 [2020-11-30 01:24:04,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:24:04,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:24:04,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:24:04,857 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:24:04,859 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:24:04,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c [2020-11-30 01:24:04,957 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer/data/aa5d6b7bd/ca4c15ba539c43d2af7caf6893817f20/FLAGe7b557943 [2020-11-30 01:24:05,508 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:24:05,509 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/sv-benchmarks/c/termination-crafted/NonTermination3-2.c [2020-11-30 01:24:05,519 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer/data/aa5d6b7bd/ca4c15ba539c43d2af7caf6893817f20/FLAGe7b557943 [2020-11-30 01:24:05,884 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer/data/aa5d6b7bd/ca4c15ba539c43d2af7caf6893817f20 [2020-11-30 01:24:05,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:24:05,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:24:05,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:24:05,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:24:05,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:24:05,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:24:05" (1/1) ... [2020-11-30 01:24:05,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1227558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:05, skipping insertion in model container [2020-11-30 01:24:05,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:24:05" (1/1) ... [2020-11-30 01:24:05,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:24:05,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:24:06,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:24:06,140 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:24:06,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:24:06,179 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:24:06,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:06 WrapperNode [2020-11-30 01:24:06,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:24:06,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:24:06,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:24:06,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:24:06,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:06" (1/1) ... [2020-11-30 01:24:06,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:06" (1/1) ... [2020-11-30 01:24:06,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:24:06,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:24:06,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:24:06,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:24:06,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:06" (1/1) ... [2020-11-30 01:24:06,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:06" (1/1) ... [2020-11-30 01:24:06,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:06" (1/1) ... [2020-11-30 01:24:06,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:06" (1/1) ... [2020-11-30 01:24:06,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:06" (1/1) ... [2020-11-30 01:24:06,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:06" (1/1) ... [2020-11-30 01:24:06,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:06" (1/1) ... [2020-11-30 01:24:06,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:24:06,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:24:06,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:24:06,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:24:06,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/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 [2020-11-30 01:24:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:24:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:24:06,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:24:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:24:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:24:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:24:06,645 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:24:06,645 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 01:24:06,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:24:06 BoogieIcfgContainer [2020-11-30 01:24:06,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:24:06,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:24:06,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:24:06,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:24:06,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:24:05" (1/3) ... [2020-11-30 01:24:06,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236ffa17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:24:06, skipping insertion in model container [2020-11-30 01:24:06,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:06" (2/3) ... [2020-11-30 01:24:06,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236ffa17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:24:06, skipping insertion in model container [2020-11-30 01:24:06,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:24:06" (3/3) ... [2020-11-30 01:24:06,679 INFO L111 eAbstractionObserver]: Analyzing ICFG NonTermination3-2.c [2020-11-30 01:24:06,693 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:24:06,697 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 01:24:06,721 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-30 01:24:06,760 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:24:06,761 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:24:06,761 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:24:06,763 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:24:06,763 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:24:06,763 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:24:06,763 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:24:06,763 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:24:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-11-30 01:24:06,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:24:06,781 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:24:06,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 01:24:06,782 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:24:06,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:24:06,787 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-11-30 01:24:06,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:24:06,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522201461] [2020-11-30 01:24:06,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:24:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:24:06,966 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 01:24:06,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522201461] [2020-11-30 01:24:06,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:24:06,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:24:06,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327765162] [2020-11-30 01:24:06,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:24:06,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:24:06,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:24:06,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:24:06,998 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2020-11-30 01:24:07,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:24:07,111 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2020-11-30 01:24:07,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:24:07,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 01:24:07,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:24:07,124 INFO L225 Difference]: With dead ends: 26 [2020-11-30 01:24:07,125 INFO L226 Difference]: Without dead ends: 10 [2020-11-30 01:24:07,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:24:07,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-30 01:24:07,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-30 01:24:07,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-30 01:24:07,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-11-30 01:24:07,172 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 4 [2020-11-30 01:24:07,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:24:07,172 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-11-30 01:24:07,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:24:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-11-30 01:24:07,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:24:07,174 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:24:07,174 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-11-30 01:24:07,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:24:07,175 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:24:07,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:24:07,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2020-11-30 01:24:07,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:24:07,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510058829] [2020-11-30 01:24:07,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:24:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:24:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 01:24:07,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510058829] [2020-11-30 01:24:07,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:24:07,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:24:07,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926042537] [2020-11-30 01:24:07,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:24:07,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:24:07,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:24:07,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:24:07,246 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2020-11-30 01:24:07,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:24:07,276 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-11-30 01:24:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:24:07,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-30 01:24:07,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:24:07,278 INFO L225 Difference]: With dead ends: 10 [2020-11-30 01:24:07,278 INFO L226 Difference]: Without dead ends: 9 [2020-11-30 01:24:07,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:24:07,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-30 01:24:07,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-30 01:24:07,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-30 01:24:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-30 01:24:07,283 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-11-30 01:24:07,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:24:07,283 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-30 01:24:07,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:24:07,283 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-30 01:24:07,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:24:07,286 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:24:07,288 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2020-11-30 01:24:07,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:24:07,288 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:24:07,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:24:07,293 INFO L82 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2020-11-30 01:24:07,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:24:07,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017019830] [2020-11-30 01:24:07,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:24:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:24:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:24:07,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017019830] [2020-11-30 01:24:07,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134216409] [2020-11-30 01:24:07,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer/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 01:24:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:24:07,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:24:07,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:24:07,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:24:07,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:24:07,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-11-30 01:24:07,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953805919] [2020-11-30 01:24:07,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:24:07,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:24:07,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:24:07,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:24:07,576 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-11-30 01:24:07,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:24:07,600 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-11-30 01:24:07,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:24:07,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-30 01:24:07,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:24:07,602 INFO L225 Difference]: With dead ends: 9 [2020-11-30 01:24:07,602 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:24:07,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 01:24:07,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:24:07,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:24:07,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:24:07,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:24:07,603 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-11-30 01:24:07,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:24:07,603 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:24:07,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:24:07,603 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:24:07,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:24:07,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-30 01:24:07,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:24:07,846 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2020-11-30 01:24:07,846 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:24:07,847 INFO L277 CegarLoopResult]: At program point L21(lines 9 22) the Hoare annotation is: true [2020-11-30 01:24:07,847 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-11-30 01:24:07,847 INFO L274 CegarLoopResult]: For program point L17-2(lines 17 20) no Hoare annotation was computed. [2020-11-30 01:24:07,847 INFO L274 CegarLoopResult]: For program point L17-4(lines 9 22) no Hoare annotation was computed. [2020-11-30 01:24:07,847 INFO L274 CegarLoopResult]: For program point L17-5(lines 17 20) no Hoare annotation was computed. [2020-11-30 01:24:07,847 INFO L274 CegarLoopResult]: For program point L13-2(lines 13 15) no Hoare annotation was computed. [2020-11-30 01:24:07,847 INFO L274 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-11-30 01:24:07,848 INFO L270 CegarLoopResult]: At program point L13-4(lines 13 15) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~n~0) [2020-11-30 01:24:07,848 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:24:07,848 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2020-11-30 01:24:07,848 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:24:07,848 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:24:07,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:24:07 BoogieIcfgContainer [2020-11-30 01:24:07,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:24:07,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:24:07,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:24:07,871 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:24:07,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:24:06" (3/4) ... [2020-11-30 01:24:07,876 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:24:07,888 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-30 01:24:07,889 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 01:24:07,889 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:24:07,930 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_709d6ad1-0a95-4187-9f47-8c3080293894/bin/uautomizer/witness.graphml [2020-11-30 01:24:07,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:24:07,933 INFO L168 Benchmark]: Toolchain (without parser) took 2041.76 ms. Allocated memory is still 119.5 MB. Free memory was 89.1 MB in the beginning and 78.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:24:07,934 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 83.9 MB. Free memory was 41.9 MB in the beginning and 41.8 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:24:07,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.00 ms. Allocated memory is still 119.5 MB. Free memory was 88.8 MB in the beginning and 96.2 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:24:07,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.02 ms. Allocated memory is still 119.5 MB. Free memory was 96.2 MB in the beginning and 94.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:24:07,936 INFO L168 Benchmark]: Boogie Preprocessor took 47.64 ms. Allocated memory is still 119.5 MB. Free memory was 94.8 MB in the beginning and 93.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:24:07,936 INFO L168 Benchmark]: RCFGBuilder took 382.13 ms. Allocated memory is still 119.5 MB. Free memory was 93.7 MB in the beginning and 82.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:24:07,937 INFO L168 Benchmark]: TraceAbstraction took 1207.67 ms. Allocated memory is still 119.5 MB. Free memory was 82.3 MB in the beginning and 81.7 MB in the end (delta: 648.6 kB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:24:07,938 INFO L168 Benchmark]: Witness Printer took 60.95 ms. Allocated memory is still 119.5 MB. Free memory was 81.0 MB in the beginning and 78.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:24:07,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 83.9 MB. Free memory was 41.9 MB in the beginning and 41.8 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.00 ms. Allocated memory is still 119.5 MB. Free memory was 88.8 MB in the beginning and 96.2 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.02 ms. Allocated memory is still 119.5 MB. Free memory was 96.2 MB in the beginning and 94.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.64 ms. Allocated memory is still 119.5 MB. Free memory was 94.8 MB in the beginning and 93.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 382.13 ms. Allocated memory is still 119.5 MB. Free memory was 93.7 MB in the beginning and 82.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1207.67 ms. Allocated memory is still 119.5 MB. Free memory was 82.3 MB in the beginning and 81.7 MB in the end (delta: 648.6 kB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. * Witness Printer took 60.95 ms. Allocated memory is still 119.5 MB. Free memory was 81.0 MB in the beginning and 78.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= n - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 3 SDslu, 11 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 11 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 335 SizeOfPredicates, 0 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 5/8 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...