./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s1iff.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_347b1ba8-d328-4d4c-997b-51f312cff237/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/s1iff.c -s /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/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 eec6b2d99ac9a557043cad5fb1ce9cac95211db3 ....................................................................................................................................................................................................................................................................................................................... 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 [2020-11-29 19:48:22,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:48:22,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:48:22,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:48:22,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:48:22,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:48:22,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:48:22,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:48:22,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:48:22,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:48:22,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:48:22,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:48:22,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:48:22,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:48:22,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:48:22,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:48:22,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:48:22,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:48:22,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:48:22,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:48:22,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:48:22,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:48:22,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:48:22,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:48:22,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:48:22,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:48:22,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:48:22,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:48:22,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:48:22,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:48:22,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:48:22,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:48:22,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:48:22,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:48:22,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:48:22,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:48:22,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:48:22,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:48:22,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:48:22,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:48:22,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:48:22,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 19:48:22,804 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:48:22,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:48:22,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 19:48:22,806 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 19:48:22,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:48:22,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:48:22,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:48:22,807 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:48:22,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:48:22,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:48:22,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:48:22,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:48:22,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:48:22,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:48:22,809 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:48:22,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:48:22,810 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:48:22,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:48:22,810 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 19:48:22,810 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 19:48:22,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:48:22,811 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:48:22,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 19:48:22,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:48:22,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:48:22,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:48:22,812 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 19:48:22,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:48:22,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:48:22,813 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_347b1ba8-d328-4d4c-997b-51f312cff237/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eec6b2d99ac9a557043cad5fb1ce9cac95211db3 [2020-11-29 19:48:23,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:48:23,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:48:23,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:48:23,176 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:48:23,177 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:48:23,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/bin/ukojak/../../sv-benchmarks/c/array-fpi/s1iff.c [2020-11-29 19:48:23,278 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/bin/ukojak/data/11b2dc322/255a8c253aba4ed2b63e2a3b231628f7/FLAG3c09036d1 [2020-11-29 19:48:23,930 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:48:23,931 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/sv-benchmarks/c/array-fpi/s1iff.c [2020-11-29 19:48:23,949 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/bin/ukojak/data/11b2dc322/255a8c253aba4ed2b63e2a3b231628f7/FLAG3c09036d1 [2020-11-29 19:48:24,274 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/bin/ukojak/data/11b2dc322/255a8c253aba4ed2b63e2a3b231628f7 [2020-11-29 19:48:24,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:48:24,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:48:24,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:48:24,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:48:24,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:48:24,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:48:24" (1/1) ... [2020-11-29 19:48:24,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c737eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:24, skipping insertion in model container [2020-11-29 19:48:24,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:48:24" (1/1) ... [2020-11-29 19:48:24,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:48:24,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:48:24,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:48:24,624 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:48:24,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:48:24,695 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:48:24,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:24 WrapperNode [2020-11-29 19:48:24,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:48:24,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:48:24,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:48:24,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:48:24,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:24" (1/1) ... [2020-11-29 19:48:24,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:24" (1/1) ... [2020-11-29 19:48:24,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:48:24,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:48:24,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:48:24,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:48:24,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:24" (1/1) ... [2020-11-29 19:48:24,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:24" (1/1) ... [2020-11-29 19:48:24,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:24" (1/1) ... [2020-11-29 19:48:24,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:24" (1/1) ... [2020-11-29 19:48:24,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:24" (1/1) ... [2020-11-29 19:48:24,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:24" (1/1) ... [2020-11-29 19:48:24,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:24" (1/1) ... [2020-11-29 19:48:24,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:48:24,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:48:24,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:48:24,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:48:24,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/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 [2020-11-29 19:48:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:48:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:48:24,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:48:24,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 19:48:24,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:48:24,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:48:24,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:48:24,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:48:25,717 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:48:25,718 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-29 19:48:25,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:48:25 BoogieIcfgContainer [2020-11-29 19:48:25,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:48:25,722 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 19:48:25,723 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 19:48:25,739 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 19:48:25,740 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:48:25" (1/1) ... [2020-11-29 19:48:25,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:48:25,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:48:25,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2020-11-29 19:48:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2020-11-29 19:48:25,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:48:25,816 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:48:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:48:26,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:48:26,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:48:26,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2020-11-29 19:48:26,101 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2020-11-29 19:48:26,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:48:26,102 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:48:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:48:26,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 19:48:26,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:48:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-11-29 19:48:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-11-29 19:48:26,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 19:48:26,477 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:48:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:48:26,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-29 19:48:26,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:48:26,655 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 19:48:26,656 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:48:26,679 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:48:26,680 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:48:26,680 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2020-11-29 19:48:26,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 19:48:26,746 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-11-29 19:48:26,747 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:48:26,773 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:48:26,774 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:48:26,774 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:26 [2020-11-29 19:48:26,991 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:48:27,004 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:48:27,009 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:48:27,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 19:48:27,036 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-11-29 19:48:27,037 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:48:27,063 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:48:27,066 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 19:48:27,067 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:47, output treesize:34 [2020-11-29 19:48:27,193 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:48:27,209 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 19:48:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:48:28,134 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2020-11-29 19:48:28,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:48:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 17 states and 32 transitions. [2020-11-29 19:48:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 32 transitions. [2020-11-29 19:48:28,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:48:28,659 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:48:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:48:28,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:48:28,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:48:29,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:48:30,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:48:30,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 20 states and 39 transitions. [2020-11-29 19:48:30,591 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 39 transitions. [2020-11-29 19:48:30,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:48:30,592 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:48:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:48:30,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:48:30,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:48:30,885 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:48:31,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:48:31,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 21 states and 39 transitions. [2020-11-29 19:48:31,393 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 39 transitions. [2020-11-29 19:48:31,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:48:31,394 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:48:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:48:31,469 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:48:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:48:31,521 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:48:31,587 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2020-11-29 19:48:31,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 07:48:31 ImpRootNode [2020-11-29 19:48:31,628 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 19:48:31,629 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:48:31,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:48:31,630 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:48:31,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:48:25" (3/4) ... [2020-11-29 19:48:31,633 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 19:48:31,722 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_347b1ba8-d328-4d4c-997b-51f312cff237/bin/ukojak/witness.graphml [2020-11-29 19:48:31,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:48:31,725 INFO L168 Benchmark]: Toolchain (without parser) took 7443.95 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 65.9 MB in the beginning and 119.7 MB in the end (delta: -53.8 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:48:31,726 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 75.5 MB. Free memory was 48.5 MB in the beginning and 48.5 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:48:31,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.33 ms. Allocated memory is still 96.5 MB. Free memory was 65.9 MB in the beginning and 75.3 MB in the end (delta: -9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:48:31,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.73 ms. Allocated memory is still 96.5 MB. Free memory was 75.3 MB in the beginning and 73.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:48:31,729 INFO L168 Benchmark]: Boogie Preprocessor took 32.42 ms. Allocated memory is still 96.5 MB. Free memory was 73.7 MB in the beginning and 72.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:48:31,731 INFO L168 Benchmark]: RCFGBuilder took 914.85 ms. Allocated memory is still 96.5 MB. Free memory was 72.5 MB in the beginning and 48.5 MB in the end (delta: 24.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:48:31,732 INFO L168 Benchmark]: CodeCheck took 5906.23 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 48.5 MB in the beginning and 32.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:48:31,733 INFO L168 Benchmark]: Witness Printer took 93.56 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 32.8 MB in the beginning and 119.7 MB in the end (delta: -86.9 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:48:31,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.8s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 128 SDtfs, 60 SDslu, 0 SDs, 0 SdLazy, 756 SolverSat, 328 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 386 GetRequests, 316 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1833 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 34 ConstructedInterpolants, 1 QuantifiedInterpolants, 1342 SizeOfPredicates, 18 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 5/11 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 1 [L32] i=0 VAL [N=2] [L32] COND TRUE i