./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/modulus-2.i --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_7cd368f9-fff2-4a31-a0e8-9d78528191b3/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/modulus-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/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 c8679dad194af8e09f8dc0270d50ea9ce875abb3 ............................................................................................................................................................................................................................................................ 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 18:02:07,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:02:07,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:02:07,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:02:07,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:02:07,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:02:07,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:02:07,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:02:07,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:02:07,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:02:07,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:02:07,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:02:07,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:02:07,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:02:07,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:02:07,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:02:07,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:02:07,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:02:07,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:02:07,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:02:07,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:02:07,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:02:07,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:02:07,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:02:07,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:02:07,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:02:07,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:02:07,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:02:07,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:02:07,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:02:07,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:02:07,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:02:07,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:02:07,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:02:07,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:02:07,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:02:07,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:02:07,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:02:07,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:02:07,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:02:07,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:02:07,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:02:07,515 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:02:07,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:02:07,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:02:07,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:02:07,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:02:07,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:02:07,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:02:07,519 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:02:07,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:02:07,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:02:07,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:02:07,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:02:07,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:02:07,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:02:07,522 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:02:07,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:02:07,522 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:02:07,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:02:07,523 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:02:07,523 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:02:07,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:02:07,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:02:07,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:02:07,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:02:07,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:02:07,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:02:07,525 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:02:07,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:02:07,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:02:07,527 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_7cd368f9-fff2-4a31-a0e8-9d78528191b3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8679dad194af8e09f8dc0270d50ea9ce875abb3 [2020-12-01 18:02:07,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:02:07,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:02:07,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:02:07,927 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:02:07,928 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:02:07,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/bin/ukojak/../../sv-benchmarks/c/bitvector/modulus-2.i [2020-12-01 18:02:08,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/bin/ukojak/data/29e0bbb0f/253df27e65e944b3b77508cc3a903880/FLAG1b212edff [2020-12-01 18:02:08,546 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:02:08,547 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/sv-benchmarks/c/bitvector/modulus-2.i [2020-12-01 18:02:08,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/bin/ukojak/data/29e0bbb0f/253df27e65e944b3b77508cc3a903880/FLAG1b212edff [2020-12-01 18:02:08,901 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/bin/ukojak/data/29e0bbb0f/253df27e65e944b3b77508cc3a903880 [2020-12-01 18:02:08,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:02:08,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:02:08,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:02:08,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:02:08,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:02:08,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:02:08" (1/1) ... [2020-12-01 18:02:08,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a9f8320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:02:08, skipping insertion in model container [2020-12-01 18:02:08,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:02:08" (1/1) ... [2020-12-01 18:02:08,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:02:08,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:02:09,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:02:09,246 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:02:09,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:02:09,290 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:02:09,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:02:09 WrapperNode [2020-12-01 18:02:09,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:02:09,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:02:09,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:02:09,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:02:09,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:02:09" (1/1) ... [2020-12-01 18:02:09,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:02:09" (1/1) ... [2020-12-01 18:02:09,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:02:09,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:02:09,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:02:09,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:02:09,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:02:09" (1/1) ... [2020-12-01 18:02:09,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:02:09" (1/1) ... [2020-12-01 18:02:09,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:02:09" (1/1) ... [2020-12-01 18:02:09,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:02:09" (1/1) ... [2020-12-01 18:02:09,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:02:09" (1/1) ... [2020-12-01 18:02:09,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:02:09" (1/1) ... [2020-12-01 18:02:09,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:02:09" (1/1) ... [2020-12-01 18:02:09,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:02:09,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:02:09,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:02:09,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:02:09,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:02:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/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 18:02:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:02:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:02:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:02:09,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:02:10,036 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:02:10,037 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-01 18:02:10,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:02:10 BoogieIcfgContainer [2020-12-01 18:02:10,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:02:10,040 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:02:10,041 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:02:10,054 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:02:10,055 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:02:10" (1/1) ... [2020-12-01 18:02:10,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:02:10,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:10,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2020-12-01 18:02:10,101 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-12-01 18:02:10,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:02:10,104 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:10,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-01 18:02:10,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:02:10,507 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 18:02:10,554 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 18:02:10,603 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 18:02:10,607 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 18:02:10,633 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 18:02:10,649 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-01 18:02:11,726 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 18:02:12,041 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 18:02:12,403 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 18:02:12,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:12,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2020-12-01 18:02:12,483 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2020-12-01 18:02:12,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:02:12,484 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:12,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 18:02:12,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:02:12,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 13 states and 21 transitions. [2020-12-01 18:02:12,780 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 21 transitions. [2020-12-01 18:02:12,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:02:12,785 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:12,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 18:02:12,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:02:13,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 18:02:13,009 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 18:02:13,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-01 18:02:13,147 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-12-01 18:02:13,429 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 17 disjuncts [2020-12-01 18:02:13,668 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 18:02:14,179 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 18:02:14,409 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 18:02:14,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:02:14,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:14,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 8 states and 12 transitions. [2020-12-01 18:02:14,920 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 12 transitions. [2020-12-01 18:02:14,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:02:14,921 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2020-12-01 18:02:14,929 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 18:02:14,975 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:02:14,980 INFO L569 CodeCheckObserver]: Invariant with dag size 9 [2020-12-01 18:02:14,988 INFO L569 CodeCheckObserver]: Invariant with dag size 8 [2020-12-01 18:02:14,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:02:14 ImpRootNode [2020-12-01 18:02:14,990 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:02:14,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:02:14,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:02:14,992 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:02:14,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:02:10" (3/4) ... [2020-12-01 18:02:14,996 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:02:15,008 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-01 18:02:15,009 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-01 18:02:15,009 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:02:15,009 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 18:02:15,061 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7cd368f9-fff2-4a31-a0e8-9d78528191b3/bin/ukojak/witness.graphml [2020-12-01 18:02:15,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:02:15,064 INFO L168 Benchmark]: Toolchain (without parser) took 6158.61 ms. Allocated memory was 100.7 MB in the beginning and 180.4 MB in the end (delta: 79.7 MB). Free memory was 67.6 MB in the beginning and 94.9 MB in the end (delta: -27.4 MB). Peak memory consumption was 51.6 MB. Max. memory is 16.1 GB. [2020-12-01 18:02:15,065 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory was 71.4 MB in the beginning and 71.4 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:02:15,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.73 ms. Allocated memory is still 100.7 MB. Free memory was 67.4 MB in the beginning and 77.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:02:15,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.98 ms. Allocated memory is still 100.7 MB. Free memory was 77.4 MB in the beginning and 76.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:02:15,068 INFO L168 Benchmark]: Boogie Preprocessor took 46.75 ms. Allocated memory is still 100.7 MB. Free memory was 76.2 MB in the beginning and 75.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:02:15,069 INFO L168 Benchmark]: RCFGBuilder took 649.99 ms. Allocated memory is still 100.7 MB. Free memory was 75.0 MB in the beginning and 56.3 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:02:15,070 INFO L168 Benchmark]: CodeCheck took 4950.13 ms. Allocated memory was 100.7 MB in the beginning and 180.4 MB in the end (delta: 79.7 MB). Free memory was 56.3 MB in the beginning and 98.1 MB in the end (delta: -41.7 MB). Peak memory consumption was 39.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:02:15,071 INFO L168 Benchmark]: Witness Printer took 70.93 ms. Allocated memory is still 180.4 MB. Free memory was 98.1 MB in the beginning and 94.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:02:15,075 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: 4.8s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 126 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 202 GetRequests, 179 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 598 SizeOfPredicates, 16 NumberOfNonLiveVariables, 142 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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: 16]: 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: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 0 < d % 4294967296 && n == m - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 0 < d % 4294967296 && d % 4294967296 < 4294967295 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory was 71.4 MB in the beginning and 71.4 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 378.73 ms. Allocated memory is still 100.7 MB. Free memory was 67.4 MB in the beginning and 77.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.98 ms. Allocated memory is still 100.7 MB. Free memory was 77.4 MB in the beginning and 76.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.75 ms. Allocated memory is still 100.7 MB. Free memory was 76.2 MB in the beginning and 75.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 649.99 ms. Allocated memory is still 100.7 MB. Free memory was 75.0 MB in the beginning and 56.3 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 4950.13 ms. Allocated memory was 100.7 MB in the beginning and 180.4 MB in the end (delta: 79.7 MB). Free memory was 56.3 MB in the beginning and 98.1 MB in the end (delta: -41.7 MB). Peak memory consumption was 39.9 MB. Max. memory is 16.1 GB. * Witness Printer took 70.93 ms. Allocated memory is still 180.4 MB. Free memory was 98.1 MB in the beginning and 94.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...