./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn3f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn3f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/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 c3764edd0ff82cc2ff392719542cb80230c47723 ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:12:56,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:12:56,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:12:56,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:12:56,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:12:56,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:12:56,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:12:56,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:12:56,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:12:56,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:12:56,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:12:56,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:12:56,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:12:56,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:12:56,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:12:56,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:12:56,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:12:56,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:12:56,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:12:56,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:12:56,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:12:56,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:12:56,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:12:56,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:12:56,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:12:56,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:12:56,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:12:56,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:12:56,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:12:56,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:12:56,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:12:56,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:12:56,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:12:56,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:12:56,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:12:56,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:12:56,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:12:56,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:12:56,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:12:56,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:12:56,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:12:56,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:12:56,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:12:56,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:12:56,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:12:56,886 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:12:56,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:12:56,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:12:56,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:12:56,887 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:12:56,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:12:56,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:12:56,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:12:56,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:12:56,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:12:56,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:12:56,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:12:56,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:12:56,889 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:12:56,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:12:56,889 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:12:56,890 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:12:56,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:12:56,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:12:56,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:12:56,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:12:56,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:12:56,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:12:56,891 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:12:56,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:12:56,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:12:56,895 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_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3764edd0ff82cc2ff392719542cb80230c47723 [2020-12-01 17:12:57,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:12:57,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:12:57,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:12:57,215 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:12:57,218 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:12:57,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak/../../sv-benchmarks/c/array-fpi/ifeqn3f.c [2020-12-01 17:12:57,309 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak/data/d9899d569/8cb78d7c5fa34f3299af5d947dcd77fd/FLAGf256422bb [2020-12-01 17:12:57,824 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:12:57,825 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/sv-benchmarks/c/array-fpi/ifeqn3f.c [2020-12-01 17:12:57,833 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak/data/d9899d569/8cb78d7c5fa34f3299af5d947dcd77fd/FLAGf256422bb [2020-12-01 17:12:58,189 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak/data/d9899d569/8cb78d7c5fa34f3299af5d947dcd77fd [2020-12-01 17:12:58,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:12:58,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:12:58,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:12:58,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:12:58,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:12:58,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:12:58" (1/1) ... [2020-12-01 17:12:58,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66850dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:58, skipping insertion in model container [2020-12-01 17:12:58,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:12:58" (1/1) ... [2020-12-01 17:12:58,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:12:58,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:12:58,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:12:58,516 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:12:58,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:12:58,592 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:12:58,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:58 WrapperNode [2020-12-01 17:12:58,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:12:58,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:12:58,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:12:58,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:12:58,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:58" (1/1) ... [2020-12-01 17:12:58,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:58" (1/1) ... [2020-12-01 17:12:58,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:12:58,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:12:58,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:12:58,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:12:58,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:58" (1/1) ... [2020-12-01 17:12:58,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:58" (1/1) ... [2020-12-01 17:12:58,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:58" (1/1) ... [2020-12-01 17:12:58,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:58" (1/1) ... [2020-12-01 17:12:58,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:58" (1/1) ... [2020-12-01 17:12:58,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:58" (1/1) ... [2020-12-01 17:12:58,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:58" (1/1) ... [2020-12-01 17:12:58,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:12:58,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:12:58,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:12:58,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:12:58,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:12:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:12:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:12:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:12:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 17:12:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 17:12:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:12:58,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:12:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 17:12:59,484 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:12:59,485 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-01 17:12:59,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:12:59 BoogieIcfgContainer [2020-12-01 17:12:59,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:12:59,489 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:12:59,489 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:12:59,502 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:12:59,503 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:12:59" (1/1) ... [2020-12-01 17:12:59,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:12:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:12:59,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2020-12-01 17:12:59,584 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-12-01 17:12:59,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:12:59,587 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:12:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:12:59,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 17:12:59,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:12:59,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:13:00,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-12-01 17:13:00,041 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-12-01 17:13:00,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:13:00,042 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:00,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 17:13:00,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:13:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:13:00,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:00,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2020-12-01 17:13:00,234 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2020-12-01 17:13:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:13:00,234 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:00,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-01 17:13:00,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:13:00,507 INFO L382 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 [2020-12-01 17:13:00,509 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 17:13:00,512 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 17:13:00,512 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 17:13:00,513 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-12-01 17:13:00,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:13:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:01,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2020-12-01 17:13:01,186 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2020-12-01 17:13:01,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 17:13:01,187 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:01,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 17:13:01,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:13:01,463 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:13:02,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:02,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2020-12-01 17:13:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2020-12-01 17:13:02,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:13:02,462 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:02,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 17:13:02,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:13:02,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:13:03,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:03,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2020-12-01 17:13:03,484 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2020-12-01 17:13:03,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:13:03,485 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:03,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-01 17:13:03,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:13:03,594 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-12-01 17:13:03,599 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 17:13:03,607 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 17:13:03,608 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-01 17:13:03,609 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2020-12-01 17:13:03,683 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2020-12-01 17:13:03,684 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 17:13:03,694 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 17:13:03,695 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 17:13:03,696 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2020-12-01 17:13:03,808 INFO L348 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2020-12-01 17:13:03,809 INFO L382 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 1 case distinctions, treesize of input 27 treesize of output 22 [2020-12-01 17:13:03,811 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 17:13:03,822 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 17:13:03,823 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 17:13:03,823 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:32 [2020-12-01 17:13:04,017 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-12-01 17:13:04,018 INFO L382 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 1 case distinctions, treesize of input 36 treesize of output 32 [2020-12-01 17:13:04,021 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 17:13:04,039 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 17:13:04,041 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 17:13:04,041 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:34 [2020-12-01 17:13:04,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 17:13:04,201 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-12-01 17:13:04,203 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 44 [2020-12-01 17:13:04,208 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 17:13:04,227 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 17:13:04,234 INFO L547 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. [2020-12-01 17:13:04,235 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:58 [2020-12-01 17:13:04,824 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 17:13:04,832 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-01 17:13:04,841 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 17:13:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:13:09,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:09,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2020-12-01 17:13:09,907 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2020-12-01 17:13:09,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 17:13:09,910 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:09,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 17:13:09,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:13:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 17:13:16,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:16,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 38 states and 57 transitions. [2020-12-01 17:13:16,497 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 57 transitions. [2020-12-01 17:13:16,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 17:13:16,498 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:13:16,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 17:13:16,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:13:17,138 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 17:13:19,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:13:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 39 states and 56 transitions. [2020-12-01 17:13:19,243 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 56 transitions. [2020-12-01 17:13:19,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 17:13:19,245 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:13:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:13:19,323 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:13:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:13:19,392 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:13:20,098 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2020-12-01 17:13:20,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:13:20 ImpRootNode [2020-12-01 17:13:20,147 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:13:20,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:13:20,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:13:20,148 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:13:20,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:12:59" (3/4) ... [2020-12-01 17:13:20,154 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:13:20,256 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1a8a1c54-aabb-4329-88a9-8aa25dd284bf/bin/ukojak/witness.graphml [2020-12-01 17:13:20,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:13:20,258 INFO L168 Benchmark]: Toolchain (without parser) took 22062.84 ms. Allocated memory was 83.9 MB in the beginning and 234.9 MB in the end (delta: 151.0 MB). Free memory was 52.4 MB in the beginning and 198.3 MB in the end (delta: -145.9 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-12-01 17:13:20,259 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 83.9 MB. Free memory was 42.9 MB in the beginning and 42.9 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:13:20,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.33 ms. Allocated memory is still 83.9 MB. Free memory was 52.3 MB in the beginning and 61.7 MB in the end (delta: -9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:13:20,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.38 ms. Allocated memory is still 83.9 MB. Free memory was 61.7 MB in the beginning and 60.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:13:20,264 INFO L168 Benchmark]: Boogie Preprocessor took 32.75 ms. Allocated memory is still 83.9 MB. Free memory was 60.1 MB in the beginning and 59.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:13:20,265 INFO L168 Benchmark]: RCFGBuilder took 813.11 ms. Allocated memory is still 83.9 MB. Free memory was 58.8 MB in the beginning and 33.0 MB in the end (delta: 25.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-12-01 17:13:20,266 INFO L168 Benchmark]: CodeCheck took 20658.21 ms. Allocated memory was 83.9 MB in the beginning and 234.9 MB in the end (delta: 151.0 MB). Free memory was 33.0 MB in the beginning and 201.5 MB in the end (delta: -168.5 MB). Peak memory consumption was 113.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:13:20,266 INFO L168 Benchmark]: Witness Printer took 109.12 ms. Allocated memory is still 234.9 MB. Free memory was 201.5 MB in the beginning and 198.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:13:20,270 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, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.5s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1408 SDtfs, 528 SDslu, 0 SDs, 0 SdLazy, 6762 SolverSat, 3282 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 994 GetRequests, 778 SyntacticMatches, 14 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19306 ImplicationChecksByTransitivity, 17.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 90 ConstructedInterpolants, 5 QuantifiedInterpolants, 9006 SizeOfPredicates, 28 NumberOfNonLiveVariables, 786 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 27/50 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 *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] i=0 VAL [N=3] [L31] COND TRUE i