./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/string-1.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_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/string-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b312eb4f8caa7cb61d3a06c0594e4f86d10948be ............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:44:30,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:44:30,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:44:30,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:44:30,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:44:30,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:44:30,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:44:30,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:44:30,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:44:30,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:44:30,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:44:30,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:44:30,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:44:30,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:44:30,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:44:30,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:44:30,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:44:30,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:44:30,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:44:30,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:44:30,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:44:30,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:44:30,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:44:30,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:44:30,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:44:30,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:44:30,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:44:30,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:44:30,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:44:30,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:44:30,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:44:30,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:44:30,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:44:30,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:44:30,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:44:30,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:44:30,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:44:30,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:44:30,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:44:30,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:44:30,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:44:30,590 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:44:30,634 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:44:30,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:44:30,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:44:30,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:44:30,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:44:30,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:44:30,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:44:30,642 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:44:30,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:44:30,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:44:30,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:44:30,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:44:30,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:44:30,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:44:30,644 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:44:30,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:44:30,645 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:44:30,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:44:30,645 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:44:30,646 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:44:30,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:44:30,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:44:30,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:30,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:44:30,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:44:30,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:44:30,647 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:44:30,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:44:30,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:44:30,648 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_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b312eb4f8caa7cb61d3a06c0594e4f86d10948be [2020-11-28 04:44:30,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:44:31,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:44:31,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:44:31,007 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:44:31,008 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:44:31,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/../../sv-benchmarks/c/loops/string-1.i [2020-11-28 04:44:31,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/data/06fd58da0/724b87f4729e4a708489dab7f74ff211/FLAG344846c31 [2020-11-28 04:44:31,690 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:44:31,692 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/sv-benchmarks/c/loops/string-1.i [2020-11-28 04:44:31,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/data/06fd58da0/724b87f4729e4a708489dab7f74ff211/FLAG344846c31 [2020-11-28 04:44:32,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/data/06fd58da0/724b87f4729e4a708489dab7f74ff211 [2020-11-28 04:44:32,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:44:32,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:44:32,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:32,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:44:32,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:44:32,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:32" (1/1) ... [2020-11-28 04:44:32,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48d3aa55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:32, skipping insertion in model container [2020-11-28 04:44:32,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:32" (1/1) ... [2020-11-28 04:44:32,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:44:32,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:44:32,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:32,365 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:44:32,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:32,413 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:44:32,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:32 WrapperNode [2020-11-28 04:44:32,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:32,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:32,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:44:32,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:44:32,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:32" (1/1) ... [2020-11-28 04:44:32,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:32" (1/1) ... [2020-11-28 04:44:32,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:32,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:44:32,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:44:32,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:44:32,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:32" (1/1) ... [2020-11-28 04:44:32,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:32" (1/1) ... [2020-11-28 04:44:32,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:32" (1/1) ... [2020-11-28 04:44:32,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:32" (1/1) ... [2020-11-28 04:44:32,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:32" (1/1) ... [2020-11-28 04:44:32,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:32" (1/1) ... [2020-11-28 04:44:32,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:32" (1/1) ... [2020-11-28 04:44:32,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:44:32,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:44:32,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:44:32,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:44:32,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2020-11-28 04:44:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:44:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:44:32,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:44:32,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:44:32,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:44:32,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:44:32,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:44:33,272 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:44:33,272 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-28 04:44:33,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:33 BoogieIcfgContainer [2020-11-28 04:44:33,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:44:33,276 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:44:33,276 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:44:33,288 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:44:33,288 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:33" (1/1) ... [2020-11-28 04:44:33,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:44:33,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:33,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 31 transitions. [2020-11-28 04:44:33,345 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 31 transitions. [2020-11-28 04:44:33,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:44:33,349 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:33,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:33,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2020-11-28 04:44:33,600 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2020-11-28 04:44:33,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 04:44:33,601 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:33,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:33,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2020-11-28 04:44:33,748 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2020-11-28 04:44:33,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 04:44:33,749 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:33,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:44:33,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:33,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2020-11-28 04:44:33,799 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2020-11-28 04:44:33,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 04:44:33,800 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:33,862 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:44:33,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:33,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2020-11-28 04:44:33,889 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2020-11-28 04:44:33,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:44:33,890 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:33,989 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:44:34,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:34,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2020-11-28 04:44:34,049 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2020-11-28 04:44:34,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 04:44:34,050 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:34,144 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:44:34,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:34,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2020-11-28 04:44:34,246 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2020-11-28 04:44:34,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 04:44:34,247 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:34,312 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:44:34,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:34,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2020-11-28 04:44:34,398 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2020-11-28 04:44:34,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 04:44:34,399 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:34,446 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-28 04:44:34,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:34,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2020-11-28 04:44:34,483 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-11-28 04:44:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:44:34,484 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:34,536 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-28 04:44:34,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:34,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 28 states and 38 transitions. [2020-11-28 04:44:34,556 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2020-11-28 04:44:34,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 04:44:34,557 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:34,602 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-28 04:44:34,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:34,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 29 states and 38 transitions. [2020-11-28 04:44:34,634 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2020-11-28 04:44:34,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 04:44:34,635 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:34,772 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-28 04:44:34,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 30 states and 44 transitions. [2020-11-28 04:44:34,912 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-28 04:44:34,913 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:44:34,913 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2020-11-28 04:44:34,919 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:44:34,943 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:34,948 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:34,948 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:34,948 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:34,948 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:34,948 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:34,949 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:34,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:34 ImpRootNode [2020-11-28 04:44:34,949 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:34,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:34,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:34,950 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:34,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:33" (3/4) ... [2020-11-28 04:44:34,954 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:44:34,963 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2020-11-28 04:44:34,963 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 04:44:34,964 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:44:34,964 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:44:35,029 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_82da6ceb-4f53-4a81-a3ad-fdf520f9e698/bin/ukojak/witness.graphml [2020-11-28 04:44:35,029 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:35,031 INFO L168 Benchmark]: Toolchain (without parser) took 2966.68 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 47.1 MB in the beginning and 42.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:35,032 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 79.7 MB. Free memory was 59.6 MB in the beginning and 59.6 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:35,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.88 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 47.0 MB in the beginning and 74.9 MB in the end (delta: -27.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:35,033 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.84 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 73.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:35,033 INFO L168 Benchmark]: Boogie Preprocessor took 30.21 ms. Allocated memory is still 100.7 MB. Free memory was 73.2 MB in the beginning and 71.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:35,034 INFO L168 Benchmark]: RCFGBuilder took 783.21 ms. Allocated memory is still 100.7 MB. Free memory was 71.9 MB in the beginning and 47.6 MB in the end (delta: 24.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:35,034 INFO L168 Benchmark]: CodeCheck took 1673.78 ms. Allocated memory is still 100.7 MB. Free memory was 47.6 MB in the beginning and 46.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:35,034 INFO L168 Benchmark]: Witness Printer took 79.77 ms. Allocated memory is still 100.7 MB. Free memory was 45.4 MB in the beginning and 42.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:35,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21508 SDtfs, 8 SDslu, 4 SDs, 0 SdLazy, 16382 SolverSat, 10790 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1551 GetRequests, 1515 SyntacticMatches, 12 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 5517 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 90/130 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 12]: 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: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 79.7 MB. Free memory was 59.6 MB in the beginning and 59.6 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 345.88 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 47.0 MB in the beginning and 74.9 MB in the end (delta: -27.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.84 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 73.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.21 ms. Allocated memory is still 100.7 MB. Free memory was 73.2 MB in the beginning and 71.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 783.21 ms. Allocated memory is still 100.7 MB. Free memory was 71.9 MB in the beginning and 47.6 MB in the end (delta: 24.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * CodeCheck took 1673.78 ms. Allocated memory is still 100.7 MB. Free memory was 47.6 MB in the beginning and 46.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Witness Printer took 79.77 ms. Allocated memory is still 100.7 MB. Free memory was 45.4 MB in the beginning and 42.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...