./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/modsf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/modsf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfa35dbeaf9ec268436e425d7397d5a090cc0d47 ................................................................................................................................................................................................................................................................................ 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 0.1.24-678e011 [2019-11-20 03:01:32,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:01:32,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:01:32,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:01:32,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:01:32,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:01:32,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:01:32,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:01:32,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:01:32,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:01:32,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:01:32,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:01:32,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:01:32,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:01:32,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:01:32,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:01:32,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:01:32,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:01:32,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:01:32,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:01:32,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:01:32,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:01:32,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:01:32,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:01:32,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:01:32,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:01:32,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:01:32,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:01:32,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:01:32,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:01:32,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:01:32,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:01:32,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:01:32,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:01:32,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:01:32,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:01:32,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:01:32,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:01:32,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:01:32,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:01:32,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:01:32,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 03:01:32,712 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:01:32,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:01:32,715 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 03:01:32,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 03:01:32,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:01:32,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:01:32,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:01:32,717 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:01:32,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:01:32,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:01:32,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:01:32,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:01:32,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:01:32,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:01:32,720 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:01:32,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:01:32,721 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:01:32,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:01:32,721 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 03:01:32,721 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 03:01:32,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:01:32,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:01:32,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 03:01:32,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:01:32,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:01:32,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:01:32,723 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 03:01:32,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:01:32,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:01:32,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ed81fb09-441c-4caf-8046-4610f9807ac4/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(__VERIFIER_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 -> dfa35dbeaf9ec268436e425d7397d5a090cc0d47 [2019-11-20 03:01:32,939 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:01:32,952 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:01:32,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:01:32,960 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:01:32,966 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:01:32,967 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/bin/ukojak/../../sv-benchmarks/c/array-fpi/modsf.c [2019-11-20 03:01:33,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/bin/ukojak/data/e3fee3e30/ad741ab3cb0e499f80992ade7d0b03bf/FLAG4d744d011 [2019-11-20 03:01:33,430 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:01:33,431 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/sv-benchmarks/c/array-fpi/modsf.c [2019-11-20 03:01:33,436 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/bin/ukojak/data/e3fee3e30/ad741ab3cb0e499f80992ade7d0b03bf/FLAG4d744d011 [2019-11-20 03:01:33,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/bin/ukojak/data/e3fee3e30/ad741ab3cb0e499f80992ade7d0b03bf [2019-11-20 03:01:33,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:01:33,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:01:33,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:01:33,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:01:33,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:01:33,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:01:33" (1/1) ... [2019-11-20 03:01:33,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:01:33, skipping insertion in model container [2019-11-20 03:01:33,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:01:33" (1/1) ... [2019-11-20 03:01:33,875 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:01:33,895 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:01:34,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:01:34,135 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:01:34,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:01:34,178 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:01:34,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:01:34 WrapperNode [2019-11-20 03:01:34,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:01:34,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:01:34,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:01:34,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:01:34,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:01:34" (1/1) ... [2019-11-20 03:01:34,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:01:34" (1/1) ... [2019-11-20 03:01:34,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:01:34,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:01:34,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:01:34,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:01:34,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:01:34" (1/1) ... [2019-11-20 03:01:34,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:01:34" (1/1) ... [2019-11-20 03:01:34,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:01:34" (1/1) ... [2019-11-20 03:01:34,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:01:34" (1/1) ... [2019-11-20 03:01:34,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:01:34" (1/1) ... [2019-11-20 03:01:34,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:01:34" (1/1) ... [2019-11-20 03:01:34,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:01:34" (1/1) ... [2019-11-20 03:01:34,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:01:34,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:01:34,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:01:34,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:01:34,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:01:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/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 [2019-11-20 03:01:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 03:01:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 03:01:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 03:01:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:01:34,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:01:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 03:01:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 03:01:34,800 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:01:34,800 INFO L285 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-20 03:01:34,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:01:34 BoogieIcfgContainer [2019-11-20 03:01:34,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:01:34,802 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 03:01:34,802 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 03:01:34,814 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 03:01:34,814 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:01:34" (1/1) ... [2019-11-20 03:01:34,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:01:34,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:01:34,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 13 states and 19 transitions. [2019-11-20 03:01:34,863 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 19 transitions. [2019-11-20 03:01:34,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 03:01:34,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:01:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:01:35,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:01:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:01:35,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2019-11-20 03:01:35,132 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2019-11-20 03:01:35,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 03:01:35,133 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:01:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:01:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 03:01:35,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:01:35,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2019-11-20 03:01:35,345 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2019-11-20 03:01:35,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 03:01:35,346 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:01:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:01:35,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 03:01:35,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:01:35,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2019-11-20 03:01:35,491 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2019-11-20 03:01:35,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 03:01:35,492 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:01:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:01:35,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 03:01:35,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:01:35,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2019-11-20 03:01:35,575 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2019-11-20 03:01:35,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 03:01:35,576 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:01:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:01:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:01:35,673 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2019-11-20 03:01:35,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 03:01:35 ImpRootNode [2019-11-20 03:01:35,713 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 03:01:35,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:01:35,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:01:35,714 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:01:35,715 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:01:34" (3/4) ... [2019-11-20 03:01:35,717 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 03:01:35,776 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ed81fb09-441c-4caf-8046-4610f9807ac4/bin/ukojak/witness.graphml [2019-11-20 03:01:35,781 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:01:35,784 INFO L168 Benchmark]: Toolchain (without parser) took 1923.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 940.7 MB in the beginning and 1.0 GB in the end (delta: -88.9 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:01:35,785 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:01:35,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-11-20 03:01:35,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:01:35,793 INFO L168 Benchmark]: Boogie Preprocessor took 30.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:01:35,794 INFO L168 Benchmark]: RCFGBuilder took 546.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:01:35,794 INFO L168 Benchmark]: CodeCheck took 911.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:01:35,795 INFO L168 Benchmark]: Witness Printer took 68.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:01:35,799 INFO L335 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, 13 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 120 SDtfs, 48 SDslu, 0 SDs, 0 SdLazy, 214 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 349 GetRequests, 334 SyntacticMatches, 9 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 842 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 6/6 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: [L14] int N; [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long sum[1]; [L24] long long *a = malloc(sizeof(long long)*N); [L26] sum[0] = 0 [L27] i=0 VAL [N=1] [L27] COND TRUE i