./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s4iff.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_a6672089-9e7c-417e-bff6-ab7171939202/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/s4iff.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/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 98b440d2018d3020f67dce8008e7aad4265ed1f1 ......................................................................................................................................................................................................................................................................................................................... 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 17:04:54,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:04:54,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:04:54,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:04:54,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:04:54,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:04:54,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:04:54,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:04:54,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:04:54,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:04:54,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:04:54,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:04:54,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:04:54,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:04:54,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:04:54,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:04:54,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:04:54,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:04:54,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:04:54,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:04:54,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:04:54,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:04:54,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:04:54,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:04:54,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:04:54,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:04:54,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:04:54,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:04:54,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:04:54,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:04:54,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:04:54,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:04:54,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:04:54,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:04:54,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:04:54,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:04:54,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:04:54,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:04:54,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:04:54,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:04:54,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:04:54,215 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:04:54,245 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:04:54,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:04:54,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:04:54,247 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:04:54,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:04:54,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:04:54,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:04:54,248 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:04:54,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:04:54,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:04:54,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:04:54,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:04:54,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:04:54,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:04:54,250 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:04:54,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:04:54,250 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:04:54,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:04:54,251 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:04:54,251 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:04:54,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:04:54,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:04:54,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:04:54,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:04:54,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:04:54,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:04:54,252 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:04:54,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:04:54,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:04:54,253 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_a6672089-9e7c-417e-bff6-ab7171939202/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98b440d2018d3020f67dce8008e7aad4265ed1f1 [2020-12-01 17:04:54,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:04:54,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:04:54,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:04:54,586 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:04:54,588 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:04:54,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/bin/ukojak/../../sv-benchmarks/c/array-fpi/s4iff.c [2020-12-01 17:04:54,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/bin/ukojak/data/da7edb992/7dadb71a27b44902b545c34baedf3ed0/FLAG336364e52 [2020-12-01 17:04:55,217 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:04:55,217 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/sv-benchmarks/c/array-fpi/s4iff.c [2020-12-01 17:04:55,224 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/bin/ukojak/data/da7edb992/7dadb71a27b44902b545c34baedf3ed0/FLAG336364e52 [2020-12-01 17:04:55,579 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/bin/ukojak/data/da7edb992/7dadb71a27b44902b545c34baedf3ed0 [2020-12-01 17:04:55,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:04:55,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:04:55,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:04:55,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:04:55,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:04:55,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:04:55" (1/1) ... [2020-12-01 17:04:55,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2522f3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:04:55, skipping insertion in model container [2020-12-01 17:04:55,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:04:55" (1/1) ... [2020-12-01 17:04:55,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:04:55,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:04:55,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:04:55,819 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:04:55,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:04:55,886 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:04:55,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:04:55 WrapperNode [2020-12-01 17:04:55,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:04:55,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:04:55,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:04:55,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:04:55,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:04:55" (1/1) ... [2020-12-01 17:04:55,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:04:55" (1/1) ... [2020-12-01 17:04:55,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:04:55,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:04:55,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:04:55,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:04:55,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:04:55" (1/1) ... [2020-12-01 17:04:55,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:04:55" (1/1) ... [2020-12-01 17:04:55,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:04:55" (1/1) ... [2020-12-01 17:04:55,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:04:55" (1/1) ... [2020-12-01 17:04:55,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:04:55" (1/1) ... [2020-12-01 17:04:55,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:04:55" (1/1) ... [2020-12-01 17:04:55,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:04:55" (1/1) ... [2020-12-01 17:04:55,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:04:55,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:04:55,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:04:55,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:04:55,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:04:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/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 17:04:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:04:56,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:04:56,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 17:04:56,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 17:04:56,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:04:56,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:04:56,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 17:04:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 17:04:56,386 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:04:56,387 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-01 17:04:56,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:04:56 BoogieIcfgContainer [2020-12-01 17:04:56,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:04:56,390 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:04:56,390 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:04:56,401 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:04:56,401 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:04:56" (1/1) ... [2020-12-01 17:04:56,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:04:56,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:04:56,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2020-12-01 17:04:56,445 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2020-12-01 17:04:56,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:04:56,448 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:04:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:04:56,640 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 17:04:56,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:04:56,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2020-12-01 17:04:56,679 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2020-12-01 17:04:56,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:04:56,679 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:04:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:04:56,821 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 17:04:56,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:04:56,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-12-01 17:04:56,925 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-12-01 17:04:56,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:04:56,925 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:04:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:04:57,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 26 conjunts are in the unsatisfiable core [2020-12-01 17:04:57,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:04:57,084 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 17:04:57,092 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 17:04:57,111 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 17:04:57,120 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 17:04:57,121 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 17:04:57,131 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 17:04:57,132 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 17:04:57,133 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2020-12-01 17:04:57,168 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 0 case distinctions, treesize of input 19 treesize of output 18 [2020-12-01 17:04:57,170 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 17:04:57,182 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 17:04:57,184 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 17:04:57,184 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2020-12-01 17:04:57,271 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 0 case distinctions, treesize of input 36 treesize of output 23 [2020-12-01 17:04:57,274 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 17:04:57,299 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 17:04:57,310 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 17:04:57,311 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:46, output treesize:31 [2020-12-01 17:04:57,420 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 17:04:57,433 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 17:04:57,436 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:04:57,458 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 17:04:57,464 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:04:57,475 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 17:04:57,485 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-01 17:04:57,512 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 17:04:58,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:04:58,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 17 states and 33 transitions. [2020-12-01 17:04:58,254 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 33 transitions. [2020-12-01 17:04:58,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:04:58,256 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:04:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:04:58,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 17:04:58,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:04:58,482 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:04:59,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:04:59,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 20 states and 40 transitions. [2020-12-01 17:04:59,428 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 40 transitions. [2020-12-01 17:04:59,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:04:59,428 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:04:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:04:59,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 17:04:59,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:04:59,604 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:04:59,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:04:59,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 21 states and 40 transitions. [2020-12-01 17:04:59,927 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 40 transitions. [2020-12-01 17:04:59,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 17:04:59,928 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:04:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:04:59,980 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:05:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:05:00,010 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:05:00,306 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2020-12-01 17:05:00,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:05:00 ImpRootNode [2020-12-01 17:05:00,337 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:05:00,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:05:00,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:05:00,338 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:05:00,338 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:04:56" (3/4) ... [2020-12-01 17:05:00,340 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:05:00,397 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a6672089-9e7c-417e-bff6-ab7171939202/bin/ukojak/witness.graphml [2020-12-01 17:05:00,407 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:05:00,408 INFO L168 Benchmark]: Toolchain (without parser) took 4821.70 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 69.1 MB in the beginning and 62.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 52.8 MB. Max. memory is 16.1 GB. [2020-12-01 17:05:00,409 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 79.7 MB. Free memory was 50.7 MB in the beginning and 50.7 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:05:00,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.86 ms. Allocated memory is still 100.7 MB. Free memory was 69.1 MB in the beginning and 77.9 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:05:00,410 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.44 ms. Allocated memory is still 100.7 MB. Free memory was 77.9 MB in the beginning and 76.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:05:00,411 INFO L168 Benchmark]: Boogie Preprocessor took 23.25 ms. Allocated memory is still 100.7 MB. Free memory was 76.3 MB in the beginning and 75.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:05:00,412 INFO L168 Benchmark]: RCFGBuilder took 433.54 ms. Allocated memory is still 100.7 MB. Free memory was 75.1 MB in the beginning and 51.2 MB in the end (delta: 24.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:05:00,414 INFO L168 Benchmark]: CodeCheck took 3946.80 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 51.2 MB in the beginning and 64.8 MB in the end (delta: -13.6 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:05:00,415 INFO L168 Benchmark]: Witness Printer took 69.72 ms. Allocated memory is still 146.8 MB. Free memory was 64.8 MB in the beginning and 62.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:05:00,417 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: 3.8s, 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, 766 SolverSat, 326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 390 GetRequests, 320 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1833 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 34 ConstructedInterpolants, 1 QuantifiedInterpolants, 1356 SizeOfPredicates, 18 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 38 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