./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c --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_d2197bc2-ce9a-49f8-80d6-5dd343938fef/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/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 75e3ae35873fc976ba5f9091947bbca66fbdab4b ..................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:40:03,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:40:03,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:40:03,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:40:03,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:40:03,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:40:03,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:40:03,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:40:03,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:40:03,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:40:03,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:40:03,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:40:03,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:40:03,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:40:03,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:40:03,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:40:03,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:40:03,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:40:03,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:40:03,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:40:03,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:40:03,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:40:03,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:40:03,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:40:03,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:40:03,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:40:03,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:40:03,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:40:03,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:40:03,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:40:03,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:40:03,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:40:03,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:40:03,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:40:03,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:40:03,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:40:03,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:40:03,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:40:03,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:40:03,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:40:03,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:40:03,466 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:40:03,513 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:40:03,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:40:03,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:40:03,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:40:03,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:40:03,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:40:03,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:40:03,518 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:40:03,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:40:03,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:40:03,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:40:03,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:40:03,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:40:03,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:40:03,520 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:40:03,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:40:03,521 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:40:03,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:40:03,521 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:40:03,522 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:40:03,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:40:03,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:40:03,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:40:03,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:40:03,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:40:03,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:40:03,523 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:40:03,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:40:03,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:40:03,526 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_d2197bc2-ce9a-49f8-80d6-5dd343938fef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75e3ae35873fc976ba5f9091947bbca66fbdab4b [2020-11-28 04:40:03,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:40:03,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:40:03,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:40:03,844 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:40:03,846 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:40:03,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c [2020-11-28 04:40:03,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/bin/ukojak/data/3f67c4422/023172935a7b4526a9c01a149ce32e22/FLAG6c711f2e9 [2020-11-28 04:40:04,498 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:40:04,499 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c [2020-11-28 04:40:04,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/bin/ukojak/data/3f67c4422/023172935a7b4526a9c01a149ce32e22/FLAG6c711f2e9 [2020-11-28 04:40:04,878 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/bin/ukojak/data/3f67c4422/023172935a7b4526a9c01a149ce32e22 [2020-11-28 04:40:04,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:40:04,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:40:04,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:04,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:40:04,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:40:04,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:04" (1/1) ... [2020-11-28 04:40:04,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e873e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:04, skipping insertion in model container [2020-11-28 04:40:04,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:04" (1/1) ... [2020-11-28 04:40:04,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:40:04,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:40:05,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:05,128 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:40:05,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:05,163 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:40:05,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:05 WrapperNode [2020-11-28 04:40:05,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:05,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:05,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:40:05,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:40:05,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:05" (1/1) ... [2020-11-28 04:40:05,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:05" (1/1) ... [2020-11-28 04:40:05,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:05,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:40:05,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:40:05,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:40:05,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:05" (1/1) ... [2020-11-28 04:40:05,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:05" (1/1) ... [2020-11-28 04:40:05,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:05" (1/1) ... [2020-11-28 04:40:05,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:05" (1/1) ... [2020-11-28 04:40:05,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:05" (1/1) ... [2020-11-28 04:40:05,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:05" (1/1) ... [2020-11-28 04:40:05,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:05" (1/1) ... [2020-11-28 04:40:05,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:40:05,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:40:05,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:40:05,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:40:05,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/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 04:40:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:40:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:40:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:40:05,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:40:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:40:05,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:40:05,829 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:40:05,829 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 04:40:05,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:05 BoogieIcfgContainer [2020-11-28 04:40:05,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:40:05,832 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:40:05,832 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:40:05,847 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:40:05,847 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:05" (1/1) ... [2020-11-28 04:40:05,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:40:05,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:05,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-11-28 04:40:05,907 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-11-28 04:40:05,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:40:05,909 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:06,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 04:40:06,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:40:06,209 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 04:40:06,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:06,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2020-11-28 04:40:06,359 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2020-11-28 04:40:06,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:40:06,363 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:06,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:40:06,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:40:06,449 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 04:40:06,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:06,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2020-11-28 04:40:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-11-28 04:40:06,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:40:06,809 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:06,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 22 conjunts are in the unsatisfiable core [2020-11-28 04:40:06,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:40:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:07,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 28 states and 44 transitions. [2020-11-28 04:40:07,585 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2020-11-28 04:40:07,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:40:07,588 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:07,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 04:40:07,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:40:07,720 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:09,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:09,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 27 states and 36 transitions. [2020-11-28 04:40:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-28 04:40:09,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 04:40:09,477 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:40:09,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:40:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:40:09,541 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:40:09,596 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-11-28 04:40:09,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:40:09 ImpRootNode [2020-11-28 04:40:09,646 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:40:09,647 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:40:09,647 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:40:09,647 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:40:09,648 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:05" (3/4) ... [2020-11-28 04:40:09,650 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:40:09,768 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d2197bc2-ce9a-49f8-80d6-5dd343938fef/bin/ukojak/witness.graphml [2020-11-28 04:40:09,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:40:09,770 INFO L168 Benchmark]: Toolchain (without parser) took 4887.92 ms. Allocated memory was 77.6 MB in the beginning and 113.2 MB in the end (delta: 35.7 MB). Free memory was 46.9 MB in the beginning and 51.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:09,771 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 77.6 MB. Free memory was 37.0 MB in the beginning and 36.9 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:09,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.80 ms. Allocated memory is still 77.6 MB. Free memory was 46.8 MB in the beginning and 56.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:09,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.22 ms. Allocated memory is still 77.6 MB. Free memory was 56.1 MB in the beginning and 54.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:09,774 INFO L168 Benchmark]: Boogie Preprocessor took 22.33 ms. Allocated memory is still 77.6 MB. Free memory was 54.6 MB in the beginning and 53.6 MB in the end (delta: 991.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:09,775 INFO L168 Benchmark]: RCFGBuilder took 608.12 ms. Allocated memory is still 77.6 MB. Free memory was 53.6 MB in the beginning and 36.5 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:09,775 INFO L168 Benchmark]: CodeCheck took 3814.24 ms. Allocated memory was 77.6 MB in the beginning and 113.2 MB in the end (delta: 35.7 MB). Free memory was 36.5 MB in the beginning and 53.7 MB in the end (delta: -17.1 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:09,776 INFO L168 Benchmark]: Witness Printer took 121.18 ms. Allocated memory is still 113.2 MB. Free memory was 53.7 MB in the beginning and 51.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:09,780 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 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 112 SDtfs, 56 SDslu, 36 SDs, 0 SdLazy, 548 SolverSat, 176 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 453 GetRequests, 379 SyntacticMatches, 6 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 2355 SizeOfPredicates, 11 NumberOfNonLiveVariables, 280 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 5/7 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 - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L21] int counter = 0; [L23] int X, Y; [L24] long long x, y, v, xy, yx; [L25] X = __VERIFIER_nondet_int() [L26] Y = __VERIFIER_nondet_int() [L27] v = ((long long) 2 * Y) - X [L28] y = 0 [L29] x = 0 VAL [counter=0] [L31] EXPR counter++ VAL [counter=1] [L31] COND TRUE counter++<1 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [counter=1] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [counter=1] [L14] COND FALSE !(!(cond)) VAL [counter=1] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [counter=1] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [counter=1] [L31] EXPR counter++ VAL [counter=2] [L31] COND FALSE !(counter++<1) [L47] xy = (long long) x*y [L48] yx = (long long) Y*x VAL [counter=2] [L49] CALL __VERIFIER_assert(2*yx - 2*xy - X + (long long) 2*Y - v + 2*y == 0) VAL [counter=2] [L14] COND TRUE !(cond) VAL [counter=2] [L7] __assert_fail("0", "bresenham-ll.c", 7, "reach_error") VAL [counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 77.6 MB. Free memory was 37.0 MB in the beginning and 36.9 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 278.80 ms. Allocated memory is still 77.6 MB. Free memory was 46.8 MB in the beginning and 56.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.22 ms. Allocated memory is still 77.6 MB. Free memory was 56.1 MB in the beginning and 54.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.33 ms. Allocated memory is still 77.6 MB. Free memory was 54.6 MB in the beginning and 53.6 MB in the end (delta: 991.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 608.12 ms. Allocated memory is still 77.6 MB. Free memory was 53.6 MB in the beginning and 36.5 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 3814.24 ms. Allocated memory was 77.6 MB in the beginning and 113.2 MB in the end (delta: 35.7 MB). Free memory was 36.5 MB in the beginning and 53.7 MB in the end (delta: -17.1 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. * Witness Printer took 121.18 ms. Allocated memory is still 113.2 MB. Free memory was 53.7 MB in the beginning and 51.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...