./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/brs2f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/brs2f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/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 cd8964853d628053ec141f0834bb54931510ac76 .............................................................................................................................................................................................................................................................................................................. 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 0.2.0-69874e2 [2020-12-01 18:05:31,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:05:31,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:05:31,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:05:31,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:05:31,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:05:31,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:05:31,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:05:31,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:05:31,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:05:31,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:05:31,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:05:31,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:05:31,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:05:31,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:05:31,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:05:31,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:05:31,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:05:31,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:05:31,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:05:31,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:05:31,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:05:31,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:05:31,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:05:31,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:05:31,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:05:31,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:05:31,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:05:31,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:05:31,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:05:31,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:05:31,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:05:31,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:05:31,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:05:31,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:05:31,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:05:31,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:05:31,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:05:31,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:05:31,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:05:31,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:05:31,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:05:31,656 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:05:31,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:05:31,659 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:05:31,659 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:05:31,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:05:31,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:05:31,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:05:31,661 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:05:31,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:05:31,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:05:31,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:05:31,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:05:31,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:05:31,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:05:31,663 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:05:31,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:05:31,664 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:05:31,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:05:31,664 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:05:31,664 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:05:31,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:05:31,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:05:31,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:05:31,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:05:31,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:05:31,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:05:31,666 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:05:31,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:05:31,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:05:31,668 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_497fea8c-7d32-41e6-95fd-0142dc5b344e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd8964853d628053ec141f0834bb54931510ac76 [2020-12-01 18:05:32,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:05:32,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:05:32,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:05:32,092 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:05:32,094 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:05:32,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak/../../sv-benchmarks/c/array-fpi/brs2f.c [2020-12-01 18:05:32,183 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak/data/0a51bfb3d/d09244b6ad3340bf88631411931d0b7e/FLAG995f05567 [2020-12-01 18:05:32,830 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:05:32,830 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/sv-benchmarks/c/array-fpi/brs2f.c [2020-12-01 18:05:32,844 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak/data/0a51bfb3d/d09244b6ad3340bf88631411931d0b7e/FLAG995f05567 [2020-12-01 18:05:33,167 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak/data/0a51bfb3d/d09244b6ad3340bf88631411931d0b7e [2020-12-01 18:05:33,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:05:33,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:05:33,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:05:33,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:05:33,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:05:33,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:05:33" (1/1) ... [2020-12-01 18:05:33,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d92cab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:33, skipping insertion in model container [2020-12-01 18:05:33,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:05:33" (1/1) ... [2020-12-01 18:05:33,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:05:33,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:05:33,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:05:33,400 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:05:33,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:05:33,473 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:05:33,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:33 WrapperNode [2020-12-01 18:05:33,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:05:33,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:05:33,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:05:33,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:05:33,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:33" (1/1) ... [2020-12-01 18:05:33,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:33" (1/1) ... [2020-12-01 18:05:33,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:05:33,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:05:33,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:05:33,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:05:33,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:33" (1/1) ... [2020-12-01 18:05:33,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:33" (1/1) ... [2020-12-01 18:05:33,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:33" (1/1) ... [2020-12-01 18:05:33,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:33" (1/1) ... [2020-12-01 18:05:33,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:33" (1/1) ... [2020-12-01 18:05:33,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:33" (1/1) ... [2020-12-01 18:05:33,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:33" (1/1) ... [2020-12-01 18:05:33,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:05:33,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:05:33,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:05:33,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:05:33,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:05:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:05:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:05:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:05:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:05:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 18:05:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:05:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:05:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 18:05:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 18:05:34,320 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:05:34,321 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-01 18:05:34,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:05:34 BoogieIcfgContainer [2020-12-01 18:05:34,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:05:34,329 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:05:34,329 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:05:34,342 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:05:34,343 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:05:34" (1/1) ... [2020-12-01 18:05:34,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:05:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:34,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2020-12-01 18:05:34,410 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2020-12-01 18:05:34,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:05:34,414 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:34,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:05:34,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:34,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2020-12-01 18:05:34,734 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2020-12-01 18:05:34,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:05:34,735 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:34,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:05:34,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:34,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-12-01 18:05:34,942 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-12-01 18:05:34,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:05:34,943 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:35,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:05:35,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:35,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 14 states and 22 transitions. [2020-12-01 18:05:35,395 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 22 transitions. [2020-12-01 18:05:35,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:05:35,400 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:35,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:05:36,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:36,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 17 states and 31 transitions. [2020-12-01 18:05:36,143 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 31 transitions. [2020-12-01 18:05:36,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:05:36,144 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:36,720 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:05:38,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:38,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 20 states and 38 transitions. [2020-12-01 18:05:38,361 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 38 transitions. [2020-12-01 18:05:38,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:05:38,361 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:05:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:05:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:05:39,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 23 states and 46 transitions. [2020-12-01 18:05:39,474 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 46 transitions. [2020-12-01 18:05:39,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:05:39,475 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:05:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:05:39,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:05:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:05:39,637 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:05:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:05:39,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:05:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:05:39,766 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:05:40,101 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2020-12-01 18:05:40,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:05:40 ImpRootNode [2020-12-01 18:05:40,145 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:05:40,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:05:40,146 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:05:40,146 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:05:40,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:05:34" (3/4) ... [2020-12-01 18:05:40,149 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:05:40,239 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_497fea8c-7d32-41e6-95fd-0142dc5b344e/bin/ukojak/witness.graphml [2020-12-01 18:05:40,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:05:40,245 INFO L168 Benchmark]: Toolchain (without parser) took 7067.95 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 61.6 MB in the beginning and 50.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. [2020-12-01 18:05:40,245 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:05:40,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.55 ms. Allocated memory is still 92.3 MB. Free memory was 61.4 MB in the beginning and 68.1 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:05:40,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.85 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 66.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:05:40,248 INFO L168 Benchmark]: Boogie Preprocessor took 62.15 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 65.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:05:40,248 INFO L168 Benchmark]: RCFGBuilder took 735.62 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 65.4 MB in the beginning and 86.6 MB in the end (delta: -21.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:05:40,249 INFO L168 Benchmark]: CodeCheck took 5816.03 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 86.6 MB in the beginning and 53.9 MB in the end (delta: 32.7 MB). Peak memory consumption was 55.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:05:40,250 INFO L168 Benchmark]: Witness Printer took 93.86 ms. Allocated memory is still 134.2 MB. Free memory was 53.9 MB in the beginning and 50.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:05:40,254 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: 5.7s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 256 SDtfs, 112 SDslu, 0 SDs, 0 SdLazy, 1282 SolverSat, 578 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 518 GetRequests, 426 SyntacticMatches, 6 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3082 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 2007 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 8/22 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=3] [L31] COND TRUE i