./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_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/res2of.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/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 [2020-11-28 04:45:10,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:45:10,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:45:10,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:45:10,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:45:10,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:45:10,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:45:10,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:45:10,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:45:10,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:45:10,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:45:10,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:45:10,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:45:10,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:45:10,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:45:10,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:45:10,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:45:10,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:45:10,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:45:10,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:45:10,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:45:10,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:45:10,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:45:10,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:45:10,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:45:10,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:45:10,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:45:10,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:45:10,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:45:10,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:45:10,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:45:10,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:45:10,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:45:10,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:45:10,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:45:10,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:45:10,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:45:10,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:45:10,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:45:10,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:45:10,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:45:10,963 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:45:10,998 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:45:11,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:45:11,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:45:11,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:45:11,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:45:11,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:45:11,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:45:11,005 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:45:11,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:45:11,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:45:11,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:45:11,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:45:11,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:45:11,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:45:11,008 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:45:11,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:45:11,009 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:45:11,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:45:11,010 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:45:11,010 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:45:11,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:45:11,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:45:11,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:45:11,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:45:11,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:45:11,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:45:11,012 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:45:11,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:45:11,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:45:11,014 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_7d436987-7c08-440a-8ef0-10f58255cd8f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab5f5575b4f404d180fabd8e1f95043fb9254d7e [2020-11-28 04:45:11,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:45:11,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:45:11,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:45:11,330 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:45:11,331 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:45:11,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak/../../sv-benchmarks/c/array-fpi/res2of.c [2020-11-28 04:45:11,435 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak/data/4dbcbf700/3f5c90320aee43be9363acba0dae6d8b/FLAG1521a5879 [2020-11-28 04:45:11,945 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:45:11,946 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/sv-benchmarks/c/array-fpi/res2of.c [2020-11-28 04:45:11,953 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak/data/4dbcbf700/3f5c90320aee43be9363acba0dae6d8b/FLAG1521a5879 [2020-11-28 04:45:12,269 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak/data/4dbcbf700/3f5c90320aee43be9363acba0dae6d8b [2020-11-28 04:45:12,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:45:12,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:45:12,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:45:12,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:45:12,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:45:12,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a728f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12, skipping insertion in model container [2020-11-28 04:45:12,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:45:12,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:45:12,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:45:12,567 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:45:12,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:45:12,624 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:45:12,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12 WrapperNode [2020-11-28 04:45:12,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:45:12,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:45:12,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:45:12,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:45:12,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:45:12,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:45:12,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:45:12,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:45:12,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:45:12,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:45:12,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:45:12,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:45:12,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:45:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:45:12,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:45:12,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:45:12,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:45:12,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:45:12,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:45:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:45:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:45:13,470 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:45:13,470 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 04:45:13,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:13 BoogieIcfgContainer [2020-11-28 04:45:13,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:45:13,473 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:45:13,473 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:45:13,484 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:45:13,484 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:13" (1/1) ... [2020-11-28 04:45:13,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:45:13,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:45:13,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 14 states and 21 transitions. [2020-11-28 04:45:13,536 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 21 transitions. [2020-11-28 04:45:13,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:45:13,539 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:45:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:45:13,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:45:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:45:13,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-11-28 04:45:13,788 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-11-28 04:45:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:45:13,789 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:45:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:45:13,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:45:13,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:45:13,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2020-11-28 04:45:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2020-11-28 04:45:13,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:45:13,971 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:45:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:45:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:45:14,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:45:14,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2020-11-28 04:45:14,129 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2020-11-28 04:45:14,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:45:14,129 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:45:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:45:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:45:14,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:45:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2020-11-28 04:45:14,315 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2020-11-28 04:45:14,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:45:14,316 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:45:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:45:14,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:45:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:45:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2020-11-28 04:45:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2020-11-28 04:45:14,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:45:14,453 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:45:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:45:14,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 04:45:14,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:45:14,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 20 states and 32 transitions. [2020-11-28 04:45:14,605 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 32 transitions. [2020-11-28 04:45:14,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 04:45:14,606 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:45:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:45:14,666 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:45:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:45:14,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:45:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:45:14,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:45:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:45:14,906 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:45:14,945 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2020-11-28 04:45:14,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:45:14 ImpRootNode [2020-11-28 04:45:14,990 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:45:14,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:45:14,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:45:14,991 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:45:14,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:13" (3/4) ... [2020-11-28 04:45:14,994 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:45:15,057 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7d436987-7c08-440a-8ef0-10f58255cd8f/bin/ukojak/witness.graphml [2020-11-28 04:45:15,057 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:45:15,060 INFO L168 Benchmark]: Toolchain (without parser) took 2784.19 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 56.2 MB in the beginning and 41.0 MB in the end (delta: 15.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:15,060 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 88.1 MB. Free memory was 44.9 MB in the beginning and 44.9 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:45:15,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.59 ms. Allocated memory is still 88.1 MB. Free memory was 55.9 MB in the beginning and 64.0 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:15,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.66 ms. Allocated memory is still 88.1 MB. Free memory was 64.0 MB in the beginning and 62.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:15,072 INFO L168 Benchmark]: Boogie Preprocessor took 38.27 ms. Allocated memory is still 88.1 MB. Free memory was 62.3 MB in the beginning and 60.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:15,073 INFO L168 Benchmark]: RCFGBuilder took 755.84 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 60.9 MB in the beginning and 83.0 MB in the end (delta: -22.1 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:15,078 INFO L168 Benchmark]: CodeCheck took 1517.67 ms. Allocated memory is still 107.0 MB. Free memory was 83.0 MB in the beginning and 43.9 MB in the end (delta: 39.1 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:15,079 INFO L168 Benchmark]: Witness Printer took 66.55 ms. Allocated memory is still 107.0 MB. Free memory was 43.9 MB in the beginning and 41.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:15,082 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: 1.4s, 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, 0.2s 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