./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark20_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_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f633d6d31a5ab4cff0448367c5d8cec927cf3a8f ................................................................................................................................................................................................................................................................................................................................................................. 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 00:40:56,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:40:56,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:40:56,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:40:56,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:40:56,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:40:56,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:40:56,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:40:56,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:40:56,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:40:56,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:40:56,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:40:56,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:40:56,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:40:56,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:40:56,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:40:56,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:40:56,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:40:56,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:40:56,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:40:56,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:40:56,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:40:56,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:40:56,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:40:56,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:40:56,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:40:56,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:40:56,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:40:56,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:40:56,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:40:56,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:40:56,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:40:56,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:40:56,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:40:56,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:40:56,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:40:56,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:40:56,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:40:56,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:40:56,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:40:56,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:40:56,575 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:40:56,604 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:40:56,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:40:56,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:40:56,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:40:56,607 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:40:56,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:40:56,607 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:40:56,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:40:56,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:40:56,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:40:56,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:40:56,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:40:56,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:40:56,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:40:56,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:40:56,610 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:40:56,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:40:56,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:40:56,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:40:56,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:40:56,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:40:56,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:40:56,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:40:56,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:40:56,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:40:56,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:40:56,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:40:56,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:40:56,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:40:56,615 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_f9f49bf0-6742-453f-ab70-d7f4a35efae5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f633d6d31a5ab4cff0448367c5d8cec927cf3a8f [2020-11-30 00:40:56,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:40:56,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:40:56,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:40:56,979 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:40:56,982 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:40:56,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer/../../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i [2020-11-30 00:40:57,072 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer/data/80418f1b4/ccfb10d58be64a7f92f84ce09e60e533/FLAGf5c8ab711 [2020-11-30 00:40:57,704 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:40:57,705 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i [2020-11-30 00:40:57,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer/data/80418f1b4/ccfb10d58be64a7f92f84ce09e60e533/FLAGf5c8ab711 [2020-11-30 00:40:58,063 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer/data/80418f1b4/ccfb10d58be64a7f92f84ce09e60e533 [2020-11-30 00:40:58,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:40:58,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:40:58,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:40:58,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:40:58,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:40:58,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:40:58" (1/1) ... [2020-11-30 00:40:58,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2295b76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58, skipping insertion in model container [2020-11-30 00:40:58,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:40:58" (1/1) ... [2020-11-30 00:40:58,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:40:58,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:40:58,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:40:58,329 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:40:58,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:40:58,377 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:40:58,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58 WrapperNode [2020-11-30 00:40:58,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:40:58,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:40:58,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:40:58,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:40:58,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58" (1/1) ... [2020-11-30 00:40:58,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58" (1/1) ... [2020-11-30 00:40:58,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:40:58,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:40:58,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:40:58,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:40:58,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58" (1/1) ... [2020-11-30 00:40:58,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58" (1/1) ... [2020-11-30 00:40:58,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58" (1/1) ... [2020-11-30 00:40:58,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58" (1/1) ... [2020-11-30 00:40:58,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58" (1/1) ... [2020-11-30 00:40:58,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58" (1/1) ... [2020-11-30 00:40:58,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58" (1/1) ... [2020-11-30 00:40:58,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:40:58,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:40:58,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:40:58,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:40:58,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/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 00:40:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:40:58,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:40:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:40:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:40:58,924 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:40:58,925 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:40:58,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:40:58 BoogieIcfgContainer [2020-11-30 00:40:58,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:40:58,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:40:58,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:40:58,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:40:58,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:40:58" (1/3) ... [2020-11-30 00:40:58,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb89efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:40:58, skipping insertion in model container [2020-11-30 00:40:58,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:40:58" (2/3) ... [2020-11-30 00:40:58,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb89efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:40:58, skipping insertion in model container [2020-11-30 00:40:58,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:40:58" (3/3) ... [2020-11-30 00:40:58,940 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark20_conjunctive.i [2020-11-30 00:40:58,951 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:40:58,955 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:40:58,966 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:40:59,001 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:40:59,002 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:40:59,002 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:40:59,003 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:40:59,003 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:40:59,003 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:40:59,003 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:40:59,003 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:40:59,016 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-30 00:40:59,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:40:59,023 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:40:59,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:40:59,024 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:40:59,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:40:59,032 INFO L82 PathProgramCache]: Analyzing trace with hash 185199154, now seen corresponding path program 1 times [2020-11-30 00:40:59,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:40:59,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494470685] [2020-11-30 00:40:59,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:40:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:40:59,244 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 00:40:59,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494470685] [2020-11-30 00:40:59,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:40:59,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:40:59,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183729261] [2020-11-30 00:40:59,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:40:59,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:40:59,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:40:59,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:40:59,272 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2020-11-30 00:40:59,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:40:59,289 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2020-11-30 00:40:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:40:59,290 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 00:40:59,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:40:59,301 INFO L225 Difference]: With dead ends: 22 [2020-11-30 00:40:59,301 INFO L226 Difference]: Without dead ends: 9 [2020-11-30 00:40:59,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:40:59,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-30 00:40:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-30 00:40:59,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-30 00:40:59,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-30 00:40:59,355 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2020-11-30 00:40:59,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:40:59,356 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-30 00:40:59,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:40:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-30 00:40:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:40:59,358 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:40:59,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:40:59,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:40:59,359 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:40:59,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:40:59,362 INFO L82 PathProgramCache]: Analyzing trace with hash 181505070, now seen corresponding path program 1 times [2020-11-30 00:40:59,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:40:59,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81646160] [2020-11-30 00:40:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:40:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:40:59,468 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 00:40:59,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81646160] [2020-11-30 00:40:59,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:40:59,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:40:59,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240004683] [2020-11-30 00:40:59,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:40:59,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:40:59,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:40:59,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:40:59,472 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-11-30 00:40:59,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:40:59,521 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-11-30 00:40:59,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:40:59,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-30 00:40:59,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:40:59,522 INFO L225 Difference]: With dead ends: 15 [2020-11-30 00:40:59,522 INFO L226 Difference]: Without dead ends: 10 [2020-11-30 00:40:59,523 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 00:40:59,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-30 00:40:59,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-30 00:40:59,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-30 00:40:59,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-11-30 00:40:59,527 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2020-11-30 00:40:59,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:40:59,527 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-11-30 00:40:59,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:40:59,527 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-11-30 00:40:59,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:40:59,528 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:40:59,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:40:59,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:40:59,529 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:40:59,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:40:59,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1383312870, now seen corresponding path program 1 times [2020-11-30 00:40:59,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:40:59,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629862663] [2020-11-30 00:40:59,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:40:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:40:59,616 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 00:40:59,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629862663] [2020-11-30 00:40:59,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589243379] [2020-11-30 00:40:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/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 00:40:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:40:59,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:40:59,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:40:59,760 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:40:59,806 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 00:40:59,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:40:59,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-11-30 00:40:59,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071145881] [2020-11-30 00:40:59,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:40:59,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:40:59,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:40:59,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:40:59,809 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 7 states. [2020-11-30 00:40:59,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:40:59,852 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-11-30 00:40:59,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:40:59,852 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-11-30 00:40:59,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:40:59,853 INFO L225 Difference]: With dead ends: 10 [2020-11-30 00:40:59,853 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:40:59,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:40:59,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:40:59,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:40:59,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:40:59,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:40:59,855 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-11-30 00:40:59,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:40:59,855 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:40:59,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:40:59,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:40:59,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:41:00,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-30 00:41:00,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:41:00,110 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:41:00,110 INFO L277 CegarLoopResult]: At program point L29(lines 19 30) the Hoare annotation is: true [2020-11-30 00:41:00,110 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-11-30 00:41:00,110 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-30 00:41:00,110 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-30 00:41:00,111 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-11-30 00:41:00,111 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:41:00,111 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:41:00,111 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:41:00,111 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2020-11-30 00:41:00,111 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 27) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~i~0) (<= 0 ULTIMATE.start_main_~sum~0)) [2020-11-30 00:41:00,111 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 27) no Hoare annotation was computed. [2020-11-30 00:41:00,112 INFO L274 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-11-30 00:41:00,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:41:00 BoogieIcfgContainer [2020-11-30 00:41:00,127 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:41:00,128 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:41:00,128 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:41:00,128 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:41:00,129 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:40:58" (3/4) ... [2020-11-30 00:41:00,132 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:41:00,142 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 00:41:00,142 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:41:00,143 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:41:00,143 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:41:00,200 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f9f49bf0-6742-453f-ab70-d7f4a35efae5/bin/uautomizer/witness.graphml [2020-11-30 00:41:00,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:41:00,206 INFO L168 Benchmark]: Toolchain (without parser) took 2126.33 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 60.3 MB in the beginning and 85.0 MB in the end (delta: -24.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:41:00,211 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 48.2 MB in the beginning and 48.2 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:41:00,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.91 ms. Allocated memory is still 90.2 MB. Free memory was 60.1 MB in the beginning and 67.9 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:00,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.42 ms. Allocated memory is still 90.2 MB. Free memory was 67.9 MB in the beginning and 66.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:00,214 INFO L168 Benchmark]: Boogie Preprocessor took 43.23 ms. Allocated memory is still 90.2 MB. Free memory was 66.4 MB in the beginning and 65.5 MB in the end (delta: 870.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:41:00,215 INFO L168 Benchmark]: RCFGBuilder took 459.74 ms. Allocated memory is still 90.2 MB. Free memory was 65.5 MB in the beginning and 54.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:00,219 INFO L168 Benchmark]: TraceAbstraction took 1195.86 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 54.2 MB in the beginning and 87.9 MB in the end (delta: -33.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:00,223 INFO L168 Benchmark]: Witness Printer took 72.73 ms. Allocated memory is still 111.1 MB. Free memory was 87.7 MB in the beginning and 85.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:41:00,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 48.2 MB in the beginning and 48.2 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.91 ms. Allocated memory is still 90.2 MB. Free memory was 60.1 MB in the beginning and 67.9 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.42 ms. Allocated memory is still 90.2 MB. Free memory was 67.9 MB in the beginning and 66.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.23 ms. Allocated memory is still 90.2 MB. Free memory was 66.4 MB in the beginning and 65.5 MB in the end (delta: 870.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 459.74 ms. Allocated memory is still 90.2 MB. Free memory was 65.5 MB in the beginning and 54.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1195.86 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 54.2 MB in the beginning and 87.9 MB in the end (delta: -33.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. * Witness Printer took 72.73 ms. Allocated memory is still 111.1 MB. Free memory was 87.7 MB in the beginning and 85.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 24]: Loop Invariant Derived loop invariant: 0 <= i && 0 <= sum - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 3 SDslu, 20 SDs, 0 SdLazy, 18 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 3 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 459 SizeOfPredicates, 3 NumberOfNonLiveVariables, 57 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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...