./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res2of.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_53d5c433-8280-4ce1-9ea3-d370a823de94/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/res2of.c -s /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/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 ab5f5575b4f404d180fabd8e1f95043fb9254d7e ......................................................................................................................................................................................................................................................................................................................... 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 [2020-11-30 00:44:07,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:44:07,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:44:07,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:44:07,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:44:07,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:44:07,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:44:07,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:44:07,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:44:07,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:44:07,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:44:07,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:44:07,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:44:07,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:44:07,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:44:07,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:44:07,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:44:07,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:44:07,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:44:07,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:44:07,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:44:07,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:44:07,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:44:07,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:44:07,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:44:07,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:44:07,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:44:07,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:44:07,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:44:07,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:44:07,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:44:07,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:44:07,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:44:07,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:44:07,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:44:07,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:44:07,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:44:07,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:44:07,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:44:07,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:44:07,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:44:07,445 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-30 00:44:07,476 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:44:07,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:44:07,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 00:44:07,479 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 00:44:07,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:44:07,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:44:07,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:44:07,481 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:44:07,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:44:07,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:44:07,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:44:07,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:44:07,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:44:07,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:44:07,485 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:44:07,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:44:07,486 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:44:07,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:44:07,487 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:44:07,487 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:44:07,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:44:07,488 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:44:07,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:44:07,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:44:07,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:44:07,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:44:07,490 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:44:07,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:44:07,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:44:07,492 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_53d5c433-8280-4ce1-9ea3-d370a823de94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab5f5575b4f404d180fabd8e1f95043fb9254d7e [2020-11-30 00:44:07,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:44:07,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:44:07,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:44:07,932 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:44:07,933 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:44:07,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/bin/ukojak/../../sv-benchmarks/c/array-fpi/res2of.c [2020-11-30 00:44:08,025 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/bin/ukojak/data/9507637cb/c3ceb92f2f42444dbc0d796207040cd7/FLAG2b7c8a43d [2020-11-30 00:44:08,662 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:44:08,667 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/sv-benchmarks/c/array-fpi/res2of.c [2020-11-30 00:44:08,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/bin/ukojak/data/9507637cb/c3ceb92f2f42444dbc0d796207040cd7/FLAG2b7c8a43d [2020-11-30 00:44:08,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/bin/ukojak/data/9507637cb/c3ceb92f2f42444dbc0d796207040cd7 [2020-11-30 00:44:08,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:44:08,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:44:08,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:44:08,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:44:08,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:44:08,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:44:08" (1/1) ... [2020-11-30 00:44:08,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32dfbe61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:08, skipping insertion in model container [2020-11-30 00:44:08,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:44:08" (1/1) ... [2020-11-30 00:44:09,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:44:09,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:44:09,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:44:09,377 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:44:09,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:44:09,472 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:44:09,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09 WrapperNode [2020-11-30 00:44:09,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:44:09,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:44:09,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:44:09,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:44:09,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:44:09,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:44:09,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:44:09,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:44:09,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... [2020-11-30 00:44:09,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:44:09,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:44:09,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:44:09,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:44:09,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:44:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/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 [2020-11-30 00:44:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:44:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:44:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:44:09,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:44:09,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:44:09,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:44:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:44:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:44:10,596 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:44:10,596 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 00:44:10,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:44:10 BoogieIcfgContainer [2020-11-30 00:44:10,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:44:10,600 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:44:10,600 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:44:10,612 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:44:10,612 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:44:10" (1/1) ... [2020-11-30 00:44:10,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:10,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:44:10,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 14 states and 21 transitions. [2020-11-30 00:44:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 21 transitions. [2020-11-30 00:44:10,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:44:10,672 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:44:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:10,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:44:11,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:44:11,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-11-30 00:44:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-11-30 00:44:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:44:11,056 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:44:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:11,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 00:44:11,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:44:11,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2020-11-30 00:44:11,252 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2020-11-30 00:44:11,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:44:11,253 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:44:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:11,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:44:11,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:44:11,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2020-11-30 00:44:11,386 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2020-11-30 00:44:11,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:44:11,386 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:44:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:11,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 00:44:11,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:44:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2020-11-30 00:44:11,528 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2020-11-30 00:44:11,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:44:11,529 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:44:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:11,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 00:44:11,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:44:11,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2020-11-30 00:44:11,700 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2020-11-30 00:44:11,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:44:11,701 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:44:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:44:11,781 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-30 00:44:11,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:44:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 20 states and 32 transitions. [2020-11-30 00:44:11,858 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 32 transitions. [2020-11-30 00:44:11,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:44:11,859 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:44:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:11,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:12,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:12,128 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:12,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:12,229 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2020-11-30 00:44:12,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:44:12 ImpRootNode [2020-11-30 00:44:12,285 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:44:12,286 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:44:12,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:44:12,286 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:44:12,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:44:10" (3/4) ... [2020-11-30 00:44:12,289 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:44:12,377 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_53d5c433-8280-4ce1-9ea3-d370a823de94/bin/ukojak/witness.graphml [2020-11-30 00:44:12,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:44:12,387 INFO L168 Benchmark]: Toolchain (without parser) took 3409.79 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 68.4 MB in the beginning and 83.5 MB in the end (delta: -15.1 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:12,388 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 102.8 MB. Free memory was 75.8 MB in the beginning and 75.8 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:44:12,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.68 ms. Allocated memory is still 102.8 MB. Free memory was 68.2 MB in the beginning and 78.4 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:12,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.04 ms. Allocated memory is still 102.8 MB. Free memory was 78.4 MB in the beginning and 76.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:12,398 INFO L168 Benchmark]: Boogie Preprocessor took 45.86 ms. Allocated memory is still 102.8 MB. Free memory was 76.7 MB in the beginning and 75.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:12,398 INFO L168 Benchmark]: RCFGBuilder took 1009.42 ms. Allocated memory is still 102.8 MB. Free memory was 75.0 MB in the beginning and 44.8 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:12,399 INFO L168 Benchmark]: CodeCheck took 1685.14 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 44.8 MB in the beginning and 85.9 MB in the end (delta: -41.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:44:12,400 INFO L168 Benchmark]: Witness Printer took 92.40 ms. Allocated memory is still 130.0 MB. Free memory was 85.9 MB in the beginning and 83.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:12,403 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, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 512 SDtfs, 216 SDslu, 0 SDs, 0 SdLazy, 934 SolverSat, 406 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 646 GetRequests, 615 SyntacticMatches, 25 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 1985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 15/15 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); [L30] int *b = malloc(sizeof(int)*N); [L31] int *c = malloc(sizeof(int)*N); [L33] sum[0] = 0 [L34] i=0 VAL [N=1] [L34] COND TRUE i