./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ss2f.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_bdc347fa-1523-4584-b67a-ede0edfee97e/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ss2f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/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 140b2ee674786865605f3bb0db5e22e6fcce8eed ................................................................................................................................................................................................................................................................................................................................ 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 04:44:32,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:44:32,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:44:32,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:44:32,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:44:32,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:44:32,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:44:32,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:44:32,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:44:32,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:44:32,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:44:32,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:44:32,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:44:32,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:44:32,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:44:32,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:44:32,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:44:32,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:44:32,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:44:32,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:44:32,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:44:32,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:44:32,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:44:32,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:44:32,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:44:32,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:44:32,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:44:32,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:44:32,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:44:32,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:44:32,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:44:32,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:44:32,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:44:32,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:44:32,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:44:32,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:44:32,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:44:32,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:44:32,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:44:32,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:44:32,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:44:32,842 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:44:32,892 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:44:32,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:44:32,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:44:32,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:44:32,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:44:32,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:44:32,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:44:32,895 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:44:32,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:44:32,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:44:32,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:44:32,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:44:32,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:44:32,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:44:32,898 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:44:32,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:44:32,898 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:44:32,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:44:32,899 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:44:32,899 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:44:32,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:44:32,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:44:32,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:32,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:44:32,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:44:32,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:44:32,901 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:44:32,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:44:32,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:44:32,903 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_bdc347fa-1523-4584-b67a-ede0edfee97e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 140b2ee674786865605f3bb0db5e22e6fcce8eed [2020-11-28 04:44:33,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:44:33,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:44:33,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:44:33,303 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:44:33,309 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:44:33,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/bin/ukojak/../../sv-benchmarks/c/array-fpi/ss2f.c [2020-11-28 04:44:33,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/bin/ukojak/data/fa9b18381/ce586d42ff61465192839782c7fab127/FLAG6116dc113 [2020-11-28 04:44:33,888 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:44:33,893 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/sv-benchmarks/c/array-fpi/ss2f.c [2020-11-28 04:44:33,906 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/bin/ukojak/data/fa9b18381/ce586d42ff61465192839782c7fab127/FLAG6116dc113 [2020-11-28 04:44:34,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/bin/ukojak/data/fa9b18381/ce586d42ff61465192839782c7fab127 [2020-11-28 04:44:34,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:44:34,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:44:34,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:34,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:44:34,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:44:34,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a9f50b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34, skipping insertion in model container [2020-11-28 04:44:34,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:44:34,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:44:34,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:34,531 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:44:34,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:34,592 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:44:34,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34 WrapperNode [2020-11-28 04:44:34,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:34,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:34,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:44:34,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:44:34,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:34,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:44:34,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:44:34,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:44:34,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:44:34,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:44:34,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:44:34,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:44:34,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/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 04:44:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:44:34,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:44:34,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:44:34,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:44:34,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:44:34,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:44:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:44:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:44:35,698 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:44:35,698 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-11-28 04:44:35,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:35 BoogieIcfgContainer [2020-11-28 04:44:35,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:44:35,701 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:44:35,701 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:44:35,722 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:44:35,727 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:35" (1/1) ... [2020-11-28 04:44:35,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:44:35,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:35,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 15 states and 23 transitions. [2020-11-28 04:44:35,817 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2020-11-28 04:44:35,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:44:35,820 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:36,036 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 04:44:36,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2020-11-28 04:44:36,100 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2020-11-28 04:44:36,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:44:36,101 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:36,189 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 04:44:36,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:36,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2020-11-28 04:44:36,323 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2020-11-28 04:44:36,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:44:36,324 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:36,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:44:36,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:36,491 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 04:44:36,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:36,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2020-11-28 04:44:36,595 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2020-11-28 04:44:36,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:44:36,596 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:36,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:44:36,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:36,681 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 04:44:36,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:36,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2020-11-28 04:44:36,789 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2020-11-28 04:44:36,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:44:36,790 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:36,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:44:36,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:36,896 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 04:44:36,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:36,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 20 states and 32 transitions. [2020-11-28 04:44:36,944 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 32 transitions. [2020-11-28 04:44:36,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 04:44:36,944 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:37,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:44:37,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:37,033 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 04:44:37,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:37,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 34 transitions. [2020-11-28 04:44:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2020-11-28 04:44:37,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 04:44:37,078 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:37,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:37,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:37,258 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2020-11-28 04:44:37,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:37 ImpRootNode [2020-11-28 04:44:37,305 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:37,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:37,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:37,306 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:37,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:35" (3/4) ... [2020-11-28 04:44:37,308 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:44:37,405 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bdc347fa-1523-4584-b67a-ede0edfee97e/bin/ukojak/witness.graphml [2020-11-28 04:44:37,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:37,412 INFO L168 Benchmark]: Toolchain (without parser) took 3167.93 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 52.3 MB in the beginning and 76.2 MB in the end (delta: -23.9 MB). Peak memory consumption was 527.5 kB. Max. memory is 16.1 GB. [2020-11-28 04:44:37,413 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:37,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.70 ms. Allocated memory is still 88.1 MB. Free memory was 52.1 MB in the beginning and 65.0 MB in the end (delta: -12.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:37,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.46 ms. Allocated memory is still 88.1 MB. Free memory was 65.0 MB in the beginning and 63.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:37,415 INFO L168 Benchmark]: Boogie Preprocessor took 57.36 ms. Allocated memory is still 88.1 MB. Free memory was 63.3 MB in the beginning and 61.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:37,417 INFO L168 Benchmark]: RCFGBuilder took 974.63 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 61.7 MB in the beginning and 75.7 MB in the end (delta: -14.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:37,419 INFO L168 Benchmark]: CodeCheck took 1603.46 ms. Allocated memory is still 111.1 MB. Free memory was 75.4 MB in the beginning and 78.8 MB in the end (delta: -3.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:37,420 INFO L168 Benchmark]: Witness Printer took 104.80 ms. Allocated memory is still 111.1 MB. Free memory was 78.8 MB in the beginning and 76.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:37,423 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, 15 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: 608 SDtfs, 202 SDslu, 0 SDs, 0 SdLazy, 920 SolverSat, 406 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 738 GetRequests, 699 SyntacticMatches, 29 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 2225 SizeOfPredicates, 4 NumberOfNonLiveVariables, 464 ConjunctsInSsa, 12 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] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i