./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/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 88d908807c562516d59e3074a7f6cea9889fd89a ........................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:23:24,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:23:24,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:23:24,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:23:24,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:23:24,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:23:24,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:23:24,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:23:24,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:23:24,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:23:24,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:23:24,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:23:24,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:23:24,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:23:24,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:23:24,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:23:24,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:23:24,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:23:24,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:23:24,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:23:24,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:23:24,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:23:24,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:23:24,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:23:24,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:23:24,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:23:24,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:23:24,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:23:24,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:23:24,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:23:24,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:23:24,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:23:24,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:23:24,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:23:24,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:23:24,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:23:24,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:23:24,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:23:24,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:23:24,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:23:24,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:23:24,552 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:23:24,599 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:23:24,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:23:24,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:23:24,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:23:24,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:23:24,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:23:24,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:23:24,603 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:23:24,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:23:24,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:23:24,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:23:24,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:23:24,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:23:24,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:23:24,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:23:24,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:23:24,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:23:24,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:23:24,607 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:23:24,607 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:23:24,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:23:24,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:23:24,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:23:24,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:23:24,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:23:24,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:23:24,609 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:23:24,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:23:24,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:23:24,611 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_860e95d2-9bc3-4337-979f-1fa48ec14070/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d908807c562516d59e3074a7f6cea9889fd89a [2020-12-01 16:23:24,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:23:25,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:23:25,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:23:25,019 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:23:25,020 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:23:25,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/bin/ukojak/../../sv-benchmarks/c/loops-crafted-1/nested5-1.c [2020-12-01 16:23:25,092 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/bin/ukojak/data/f10d86edc/1a234b4fdc054f679a2070e3349583bc/FLAGb39426d2c [2020-12-01 16:23:25,732 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:23:25,733 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/sv-benchmarks/c/loops-crafted-1/nested5-1.c [2020-12-01 16:23:25,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/bin/ukojak/data/f10d86edc/1a234b4fdc054f679a2070e3349583bc/FLAGb39426d2c [2020-12-01 16:23:26,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/bin/ukojak/data/f10d86edc/1a234b4fdc054f679a2070e3349583bc [2020-12-01 16:23:26,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:23:26,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:23:26,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:23:26,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:23:26,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:23:26,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:23:26" (1/1) ... [2020-12-01 16:23:26,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@643f3caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:26, skipping insertion in model container [2020-12-01 16:23:26,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:23:26" (1/1) ... [2020-12-01 16:23:26,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:23:26,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:23:26,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:23:26,379 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:23:26,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:23:26,435 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:23:26,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:26 WrapperNode [2020-12-01 16:23:26,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:23:26,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:23:26,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:23:26,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:23:26,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:26" (1/1) ... [2020-12-01 16:23:26,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:26" (1/1) ... [2020-12-01 16:23:26,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:23:26,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:23:26,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:23:26,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:23:26,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:26" (1/1) ... [2020-12-01 16:23:26,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:26" (1/1) ... [2020-12-01 16:23:26,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:26" (1/1) ... [2020-12-01 16:23:26,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:26" (1/1) ... [2020-12-01 16:23:26,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:26" (1/1) ... [2020-12-01 16:23:26,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:26" (1/1) ... [2020-12-01 16:23:26,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:26" (1/1) ... [2020-12-01 16:23:26,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:23:26,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:23:26,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:23:26,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:23:26,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/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 [2020-12-01 16:23:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:23:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:23:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:23:26,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:23:27,245 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:23:27,246 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-01 16:23:27,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:23:27 BoogieIcfgContainer [2020-12-01 16:23:27,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:23:27,250 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:23:27,250 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:23:27,263 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:23:27,263 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:23:27" (1/1) ... [2020-12-01 16:23:27,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:23:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:23:27,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 11 states and 16 transitions. [2020-12-01 16:23:27,315 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 16 transitions. [2020-12-01 16:23:27,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:23:27,319 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:23:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:23:27,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:23:27,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:23:27,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-12-01 16:23:27,601 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-12-01 16:23:27,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:23:27,601 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:23:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:23:27,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:23:27,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:23:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 13 states and 17 transitions. [2020-12-01 16:23:27,843 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2020-12-01 16:23:27,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:23:27,844 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:23:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:23:28,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:23:28,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:23:28,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-12-01 16:23:28,107 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-12-01 16:23:28,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:23:28,108 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:23:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:23:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:23:28,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:23:28,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-12-01 16:23:28,327 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-12-01 16:23:28,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:23:28,328 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:23:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:23:28,494 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:23:28,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:23:28,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2020-12-01 16:23:28,620 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-12-01 16:23:28,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:23:28,621 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:23:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:23:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:23:28,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:23:28,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2020-12-01 16:23:28,957 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2020-12-01 16:23:28,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 16:23:28,958 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:23:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:23:29,150 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:23:29,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:23:29,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-12-01 16:23:29,263 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-12-01 16:23:29,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:23:29,266 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:23:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:23:29,494 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:23:29,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:23:29,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2020-12-01 16:23:29,610 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-12-01 16:23:29,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 16:23:29,611 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:23:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:23:29,853 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:23:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:23:29,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2020-12-01 16:23:29,981 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2020-12-01 16:23:29,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:23:29,982 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:23:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:23:30,206 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:23:30,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:23:30,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2020-12-01 16:23:30,346 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-12-01 16:23:30,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 16:23:30,347 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:23:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:23:30,703 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:23:30,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:23:30,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2020-12-01 16:23:30,918 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-12-01 16:23:30,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:23:30,918 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2020-12-01 16:23:30,928 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:23:31,063 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-12-01 16:23:31,065 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:23:31,070 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:23:31,070 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:23:31,070 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:23:31,070 INFO L569 CodeCheckObserver]: Invariant with dag size 47 [2020-12-01 16:23:31,085 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:23:31,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:23:31 ImpRootNode [2020-12-01 16:23:31,086 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:23:31,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:23:31,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:23:31,089 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:23:31,090 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:23:27" (3/4) ... [2020-12-01 16:23:31,094 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:23:31,114 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-01 16:23:31,115 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-01 16:23:31,115 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 16:23:31,115 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:23:31,191 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_860e95d2-9bc3-4337-979f-1fa48ec14070/bin/ukojak/witness.graphml [2020-12-01 16:23:31,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:23:31,193 INFO L168 Benchmark]: Toolchain (without parser) took 5084.67 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 85.4 MB in the beginning and 55.0 MB in the end (delta: 30.4 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:23:31,193 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 75.5 MB. Free memory is still 40.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:23:31,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.28 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 86.0 MB in the end (delta: -936.3 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:23:31,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.67 ms. Allocated memory is still 109.1 MB. Free memory was 86.0 MB in the beginning and 84.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:23:31,195 INFO L168 Benchmark]: Boogie Preprocessor took 53.69 ms. Allocated memory is still 109.1 MB. Free memory was 84.6 MB in the beginning and 83.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:23:31,196 INFO L168 Benchmark]: RCFGBuilder took 700.75 ms. Allocated memory is still 109.1 MB. Free memory was 83.2 MB in the beginning and 64.9 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:23:31,197 INFO L168 Benchmark]: CodeCheck took 3836.58 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 64.6 MB in the beginning and 58.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:23:31,197 INFO L168 Benchmark]: Witness Printer took 104.47 ms. Allocated memory is still 138.4 MB. Free memory was 58.1 MB in the beginning and 55.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:23:31,201 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, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13312 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 12292 SolverSat, 12284 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1060 GetRequests, 926 SyntacticMatches, 90 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1751 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 8116 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 0/220 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: 3]: 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((v <= 5 && 4 < v) || (v <= 7 && 6 < v)) || (v <= 8 && 7 < v)) || (0 < v / 4294967296 + 1 && v <= 1)) || (8 < v && v <= 9)) || (v <= 4 && 3 < v)) || (v <= 6 && 5 < v)) || (1 < v && v <= 2)) || (v / 4 <= 2 && 10 <= v)) || (2 < v && v <= 3) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 75.5 MB. Free memory is still 40.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 323.28 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 86.0 MB in the end (delta: -936.3 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.67 ms. Allocated memory is still 109.1 MB. Free memory was 86.0 MB in the beginning and 84.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.69 ms. Allocated memory is still 109.1 MB. Free memory was 84.6 MB in the beginning and 83.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 700.75 ms. Allocated memory is still 109.1 MB. Free memory was 83.2 MB in the beginning and 64.9 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 3836.58 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 64.6 MB in the beginning and 58.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. * Witness Printer took 104.47 ms. Allocated memory is still 138.4 MB. Free memory was 58.1 MB in the beginning and 55.0 MB in the end (delta: 3.1 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...