./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/brs3f.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_d6e3cec3-010c-439f-8bf8-1405f208fd02/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/brs3f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/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 5a6b49f9c2a6d2eda01ab26465c2ce5a73ff1827 .................................................................................................................................................................................................................................................................................... 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 04:40:56,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:40:56,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:40:56,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:40:56,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:40:56,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:40:56,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:40:56,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:40:56,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:40:56,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:40:56,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:40:56,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:40:56,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:40:56,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:40:56,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:40:56,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:40:56,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:40:56,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:40:56,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:40:56,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:40:56,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:40:56,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:40:56,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:40:56,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:40:56,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:40:56,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:40:56,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:40:56,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:40:56,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:40:56,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:40:56,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:40:56,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:40:56,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:40:56,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:40:56,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:40:56,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:40:56,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:40:56,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:40:56,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:40:56,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:40:56,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:40:56,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:40:56,345 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:40:56,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:40:56,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:40:56,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:40:56,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:40:56,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:40:56,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:40:56,349 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:40:56,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:40:56,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:40:56,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:40:56,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:40:56,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:40:56,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:40:56,351 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:40:56,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:40:56,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:40:56,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:40:56,352 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:40:56,352 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:40:56,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:40:56,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:40:56,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:40:56,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:40:56,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:40:56,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:40:56,353 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:40:56,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:40:56,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:40:56,355 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_d6e3cec3-010c-439f-8bf8-1405f208fd02/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a6b49f9c2a6d2eda01ab26465c2ce5a73ff1827 [2020-11-28 04:40:56,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:40:56,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:40:56,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:40:56,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:40:56,656 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:40:56,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/bin/ukojak/../../sv-benchmarks/c/array-fpi/brs3f.c [2020-11-28 04:40:56,736 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/bin/ukojak/data/fe1b4247b/97825c0f635f4cb89337936d0673317c/FLAGf6652d3e5 [2020-11-28 04:40:57,291 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:40:57,292 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/sv-benchmarks/c/array-fpi/brs3f.c [2020-11-28 04:40:57,303 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/bin/ukojak/data/fe1b4247b/97825c0f635f4cb89337936d0673317c/FLAGf6652d3e5 [2020-11-28 04:40:57,643 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/bin/ukojak/data/fe1b4247b/97825c0f635f4cb89337936d0673317c [2020-11-28 04:40:57,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:40:57,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:40:57,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:57,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:40:57,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:40:57,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:57" (1/1) ... [2020-11-28 04:40:57,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156e11c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:57, skipping insertion in model container [2020-11-28 04:40:57,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:57" (1/1) ... [2020-11-28 04:40:57,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:40:57,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:40:57,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:57,902 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:40:57,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:57,936 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:40:57,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:57 WrapperNode [2020-11-28 04:40:57,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:57,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:57,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:40:57,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:40:57,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:57" (1/1) ... [2020-11-28 04:40:57,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:57" (1/1) ... [2020-11-28 04:40:57,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:57,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:40:57,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:40:57,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:40:57,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:57" (1/1) ... [2020-11-28 04:40:57,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:57" (1/1) ... [2020-11-28 04:40:57,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:57" (1/1) ... [2020-11-28 04:40:57,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:57" (1/1) ... [2020-11-28 04:40:57,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:57" (1/1) ... [2020-11-28 04:40:57,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:57" (1/1) ... [2020-11-28 04:40:57,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:57" (1/1) ... [2020-11-28 04:40:57,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:40:57,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:40:57,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:40:57,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:40:58,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/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 04:40:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:40:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:40:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:40:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:40:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:40:58,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:40:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:40:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:40:58,803 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:40:58,803 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-28 04:40:58,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:58 BoogieIcfgContainer [2020-11-28 04:40:58,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:40:58,808 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:40:58,808 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:40:58,818 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:40:58,818 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:58" (1/1) ... [2020-11-28 04:40:58,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:40:58,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:58,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2020-11-28 04:40:58,872 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2020-11-28 04:40:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:40:58,874 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:59,108 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 04:40:59,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2020-11-28 04:40:59,193 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2020-11-28 04:40:59,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:40:59,193 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:40:59,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:59,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-11-28 04:40:59,416 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-11-28 04:40:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:40:59,416 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:59,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:40:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:59,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 14 states and 22 transitions. [2020-11-28 04:40:59,738 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 22 transitions. [2020-11-28 04:40:59,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:40:59,740 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:59,858 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:00,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 17 states and 31 transitions. [2020-11-28 04:41:00,424 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 31 transitions. [2020-11-28 04:41:00,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:41:00,424 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:41:00,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:41:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:41:00,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:41:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:41:00,644 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:41:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:41:00,666 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:41:00,687 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-11-28 04:41:00,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:41:00 ImpRootNode [2020-11-28 04:41:00,717 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:41:00,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:41:00,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:41:00,718 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:41:00,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:58" (3/4) ... [2020-11-28 04:41:00,721 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:41:00,777 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d6e3cec3-010c-439f-8bf8-1405f208fd02/bin/ukojak/witness.graphml [2020-11-28 04:41:00,777 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:41:00,780 INFO L168 Benchmark]: Toolchain (without parser) took 3131.69 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 58.0 MB in the beginning and 39.9 MB in the end (delta: 18.1 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:00,781 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 88.1 MB. Free memory was 45.6 MB in the beginning and 45.5 MB in the end (delta: 41.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:41:00,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.82 ms. Allocated memory is still 88.1 MB. Free memory was 57.8 MB in the beginning and 65.1 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:00,783 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.47 ms. Allocated memory is still 88.1 MB. Free memory was 65.1 MB in the beginning and 63.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:00,784 INFO L168 Benchmark]: Boogie Preprocessor took 24.56 ms. Allocated memory is still 88.1 MB. Free memory was 63.6 MB in the beginning and 62.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:41:00,785 INFO L168 Benchmark]: RCFGBuilder took 808.51 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 62.2 MB in the beginning and 88.7 MB in the end (delta: -26.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:00,786 INFO L168 Benchmark]: CodeCheck took 1909.72 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 42.0 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:00,787 INFO L168 Benchmark]: Witness Printer took 59.39 ms. Allocated memory is still 115.3 MB. Free memory was 42.0 MB in the beginning and 39.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:00,793 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, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 28 SDslu, 0 SDs, 0 SdLazy, 248 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 265 GetRequests, 227 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 521 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 4/7 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: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] i=0 VAL [N=2] [L31] COND TRUE i