./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s22iff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/s22iff.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b39b101c563655209f71a34308c9d664d667eb3e ................................................................................................................................................................................................................................................................ 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 0.1.24-6b5699a [2019-11-26 02:50:22,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:50:22,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:50:22,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:50:22,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:50:22,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:50:22,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:50:22,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:50:22,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:50:22,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:50:22,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:50:22,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:50:22,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:50:22,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:50:22,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:50:22,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:50:22,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:50:22,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:50:22,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:50:22,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:50:22,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:50:22,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:50:22,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:50:22,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:50:22,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:50:22,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:50:22,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:50:22,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:50:22,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:50:22,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:50:22,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:50:22,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:50:22,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:50:22,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:50:22,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:50:22,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:50:22,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:50:22,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:50:22,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:50:22,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:50:22,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:50:22,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:50:22,274 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:50:22,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:50:22,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:50:22,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:50:22,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:50:22,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:50:22,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:50:22,276 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:50:22,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:50:22,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:50:22,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:50:22,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:50:22,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:50:22,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:50:22,277 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:50:22,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:50:22,277 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:50:22,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:50:22,278 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:50:22,278 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:50:22,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:50:22,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:50:22,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:50:22,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:50:22,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:50:22,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:50:22,279 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:50:22,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:50:22,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:50:22,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_3feffa32-ac02-48c3-a431-2550e42eeb62/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(__VERIFIER_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 -> b39b101c563655209f71a34308c9d664d667eb3e [2019-11-26 02:50:22,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:50:22,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:50:22,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:50:22,439 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:50:22,441 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:50:22,442 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/bin/ukojak/../../sv-benchmarks/c/array-fpi/s22iff.c [2019-11-26 02:50:22,505 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/bin/ukojak/data/67a49f4ce/1a3881619a0046cfb25a79d3361c97fa/FLAGd358bb276 [2019-11-26 02:50:22,871 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:50:22,871 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/sv-benchmarks/c/array-fpi/s22iff.c [2019-11-26 02:50:22,877 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/bin/ukojak/data/67a49f4ce/1a3881619a0046cfb25a79d3361c97fa/FLAGd358bb276 [2019-11-26 02:50:23,229 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/bin/ukojak/data/67a49f4ce/1a3881619a0046cfb25a79d3361c97fa [2019-11-26 02:50:23,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:50:23,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:50:23,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:50:23,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:50:23,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:50:23,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:50:23" (1/1) ... [2019-11-26 02:50:23,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e898840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:23, skipping insertion in model container [2019-11-26 02:50:23,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:50:23" (1/1) ... [2019-11-26 02:50:23,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:50:23,275 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:50:23,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:50:23,582 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:50:23,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:50:23,635 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:50:23,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:23 WrapperNode [2019-11-26 02:50:23,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:50:23,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:50:23,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:50:23,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:50:23,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:23" (1/1) ... [2019-11-26 02:50:23,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:23" (1/1) ... [2019-11-26 02:50:23,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:50:23,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:50:23,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:50:23,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:50:23,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:23" (1/1) ... [2019-11-26 02:50:23,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:23" (1/1) ... [2019-11-26 02:50:23,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:23" (1/1) ... [2019-11-26 02:50:23,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:23" (1/1) ... [2019-11-26 02:50:23,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:23" (1/1) ... [2019-11-26 02:50:23,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:23" (1/1) ... [2019-11-26 02:50:23,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:23" (1/1) ... [2019-11-26 02:50:23,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:50:23,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:50:23,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:50:23,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:50:23,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/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 [2019-11-26 02:50:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:50:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:50:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:50:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:50:23,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:50:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:50:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:50:24,163 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:50:24,164 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-26 02:50:24,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:24 BoogieIcfgContainer [2019-11-26 02:50:24,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:50:24,165 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:50:24,166 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:50:24,176 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:50:24,177 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:24" (1/1) ... [2019-11-26 02:50:24,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:24,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:50:24,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2019-11-26 02:50:24,223 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2019-11-26 02:50:24,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:50:24,226 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:50:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:24,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:50:24,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:50:24,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2019-11-26 02:50:24,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2019-11-26 02:50:24,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:50:24,429 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:50:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:24,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-26 02:50:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:50:24,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2019-11-26 02:50:24,578 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2019-11-26 02:50:24,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:50:24,579 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:50:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:50:24,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:50:24,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2019-11-26 02:50:24,668 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2019-11-26 02:50:24,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:50:24,668 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:50:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:50:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:50:24,751 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2019-11-26 02:50:24,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:50:24 ImpRootNode [2019-11-26 02:50:24,792 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:50:24,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:50:24,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:50:24,793 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:50:24,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:24" (3/4) ... [2019-11-26 02:50:24,795 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:50:24,841 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3feffa32-ac02-48c3-a431-2550e42eeb62/bin/ukojak/witness.graphml [2019-11-26 02:50:24,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:50:24,843 INFO L168 Benchmark]: Toolchain (without parser) took 1609.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -141.5 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:24,844 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:50:24,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -217.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:24,845 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:50:24,845 INFO L168 Benchmark]: Boogie Preprocessor took 25.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:24,846 INFO L168 Benchmark]: RCFGBuilder took 463.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:24,846 INFO L168 Benchmark]: CodeCheck took 626.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:24,847 INFO L168 Benchmark]: Witness Printer took 48.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:24,849 INFO L335 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. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 20 SDslu, 0 SDs, 0 SdLazy, 94 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 180 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 367 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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: [L14] int N; [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L26] sum[0] = 1 [L27] i=0 VAL [N=1] [L27] COND TRUE i