./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test23-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test23-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/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 b974f281a213c0803f91ef44d205e442fb2a5f8f ................................................................................................................................................................................................................................................................................................................................................................................. 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-cad4683 [2019-10-22 10:11:25,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:11:25,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:11:25,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:11:25,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:11:25,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:11:25,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:11:25,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:11:25,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:11:25,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:11:25,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:11:25,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:11:25,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:11:25,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:11:25,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:11:25,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:11:25,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:11:25,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:11:25,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:11:25,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:11:25,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:11:25,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:11:25,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:11:25,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:11:25,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:11:25,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:11:25,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:11:25,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:11:25,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:11:25,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:11:25,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:11:25,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:11:25,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:11:25,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:11:25,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:11:25,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:11:25,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:11:25,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:11:25,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:11:25,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:11:25,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:11:25,198 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:11:25,210 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:11:25,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:11:25,211 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:11:25,211 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:11:25,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:11:25,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:11:25,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:11:25,224 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:11:25,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:11:25,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:11:25,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:11:25,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:11:25,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:11:25,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:11:25,225 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:11:25,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:11:25,225 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:11:25,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:11:25,225 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:11:25,226 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:11:25,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:11:25,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:11:25,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:11:25,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:11:25,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:11:25,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:11:25,227 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:11:25,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:11:25,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:11:25,228 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/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/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 -> b974f281a213c0803f91ef44d205e442fb2a5f8f [2019-10-22 10:11:25,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:11:25,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:11:25,283 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:11:25,284 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:11:25,284 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:11:25,284 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/bin/ukojak/../../sv-benchmarks/c/ldv-regression/test23-1.c [2019-10-22 10:11:25,328 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/bin/ukojak/data/ad69fe8e6/702e59ac380d4032b838117ed3bc9cbf/FLAG8c148b2aa [2019-10-22 10:11:25,707 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:11:25,708 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/sv-benchmarks/c/ldv-regression/test23-1.c [2019-10-22 10:11:25,713 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/bin/ukojak/data/ad69fe8e6/702e59ac380d4032b838117ed3bc9cbf/FLAG8c148b2aa [2019-10-22 10:11:25,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/bin/ukojak/data/ad69fe8e6/702e59ac380d4032b838117ed3bc9cbf [2019-10-22 10:11:25,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:11:25,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:11:25,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:11:25,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:11:25,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:11:25,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a002bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25, skipping insertion in model container [2019-10-22 10:11:25,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,740 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:11:25,752 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:11:25,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:11:25,958 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:11:25,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:11:25,986 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:11:25,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25 WrapperNode [2019-10-22 10:11:25,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:11:25,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:11:25,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:11:25,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:11:25,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:26,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:26,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:11:26,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:11:26,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:11:26,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:11:26,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:26,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:26,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:26,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:26,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:26,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:26,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:26,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:11:26,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:11:26,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:11:26,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:11:26,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/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 [2019-10-22 10:11:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 10:11:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2019-10-22 10:11:26,131 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2019-10-22 10:11:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:11:26,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:11:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 10:11:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 10:11:26,448 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:11:26,448 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 10:11:26,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:11:26 BoogieIcfgContainer [2019-10-22 10:11:26,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:11:26,450 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:11:26,450 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:11:26,458 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:11:26,458 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:11:26" (1/1) ... [2019-10-22 10:11:26,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:11:26,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:26,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2019-10-22 10:11:26,497 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-10-22 10:11:26,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 10:11:26,502 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:26,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:26,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2019-10-22 10:11:26,646 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-10-22 10:11:26,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 10:11:26,647 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:26,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:26,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:26,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2019-10-22 10:11:26,804 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-10-22 10:11:26,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 10:11:26,805 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:26,903 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:27,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:27,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2019-10-22 10:11:27,089 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2019-10-22 10:11:27,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 10:11:27,095 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:27,238 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:27,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:27,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2019-10-22 10:11:27,457 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2019-10-22 10:11:27,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 10:11:27,458 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:27,592 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:27,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:27,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2019-10-22 10:11:27,841 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2019-10-22 10:11:27,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 10:11:27,841 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:28,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:28,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2019-10-22 10:11:28,209 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2019-10-22 10:11:28,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 10:11:28,210 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:28,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:28,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2019-10-22 10:11:28,603 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2019-10-22 10:11:28,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 10:11:28,604 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:28,752 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:29,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:29,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2019-10-22 10:11:29,113 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2019-10-22 10:11:29,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 10:11:29,113 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:29,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2019-10-22 10:11:29,572 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2019-10-22 10:11:29,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 10:11:29,573 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:29,722 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:30,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:30,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 35 states and 41 transitions. [2019-10-22 10:11:30,043 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2019-10-22 10:11:30,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 10:11:30,044 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:30,185 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:30,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:30,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 37 states and 43 transitions. [2019-10-22 10:11:30,514 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2019-10-22 10:11:30,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 10:11:30,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:30,604 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 39 states and 44 transitions. [2019-10-22 10:11:30,894 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2019-10-22 10:11:30,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 10:11:30,895 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:11:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:11:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:11:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:11:31,083 WARN L489 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2019-10-22 10:11:31,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:11:31 ImpRootNode [2019-10-22 10:11:31,175 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:11:31,175 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:11:31,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:11:31,176 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:11:31,176 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:11:26" (3/4) ... [2019-10-22 10:11:31,181 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 10:11:31,270 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e192852e-9e36-4df7-b293-73a6fbfdcec7/bin/ukojak/witness.graphml [2019-10-22 10:11:31,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:11:31,272 INFO L168 Benchmark]: Toolchain (without parser) took 5544.92 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.8 MB). Free memory was 944.5 MB in the beginning and 830.0 MB in the end (delta: 114.5 MB). Peak memory consumption was 336.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:31,273 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:11:31,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -203.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:31,274 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:11:31,274 INFO L168 Benchmark]: Boogie Preprocessor took 29.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:11:31,274 INFO L168 Benchmark]: RCFGBuilder took 387.06 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: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:31,275 INFO L168 Benchmark]: CodeCheck took 4725.27 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 840.6 MB in the end (delta: 277.0 MB). Peak memory consumption was 342.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:31,275 INFO L168 Benchmark]: Witness Printer took 95.09 ms. Allocated memory is still 1.3 GB. Free memory was 840.6 MB in the beginning and 830.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:31,277 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 2 procedures, 17 locations, 1 error locations. Result: UNSAFE, OverallTime: 4.6s, OverallIterations: 13, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 34816 SDtfs, 3068 SDslu, 0 SDs, 0 SdLazy, 47084 SolverSat, 17404 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1907 GetRequests, 1695 SyntacticMatches, 110 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4256 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 277 ConstructedInterpolants, 0 QuantifiedInterpolants, 36645 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 24/464 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: 50]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] struct dummy d1, d2; [L14] d1.a = __VERIFIER_nondet_int() [L15] d1.b = __VERIFIER_nondet_int() [L17] d2.a = __VERIFIER_nondet_int() [L18] d2.b = __VERIFIER_nondet_int() [L34] CALL, EXPR get_dummy() VAL [d1={-2:0}, d2={-1:0}] [L23] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L23] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L34] RET, EXPR get_dummy() VAL [d1={-2:0}, d2={-1:0}] [L34] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L34] CALL, EXPR get_dummy() VAL [d1={-2:0}, d2={-1:0}] [L23] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L23] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L34] RET, EXPR get_dummy() VAL [d1={-2:0}, d2={-1:0}] [L34] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L35] int i = __VERIFIER_nondet_int(); [L36] COND TRUE pd1 != 0 && pd1 == pd2 && i >= 0 && i < 10 [L37] pd2->array[i] = i [L38] int *pa = &pd1->array[i]; [L39] EXPR pd2->array[i] [L39] i = pd2->array[i] - 10 [L40] EXPR \read(*pa) VAL [d1={-2:0}, d2={-1:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={-2:0}, d2={-1:0}] [L40] EXPR \read(*pa) VAL [d1={-2:0}, d2={-1:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={-2:0}, d2={-1:0}] [L40] EXPR \read(*pa) VAL [d1={-2:0}, d2={-1:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={-2:0}, d2={-1:0}] [L40] EXPR \read(*pa) VAL [d1={-2:0}, d2={-1:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={-2:0}, d2={-1:0}] [L40] EXPR \read(*pa) VAL [d1={-2:0}, d2={-1:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={-2:0}, d2={-1:0}] [L40] EXPR \read(*pa) VAL [d1={-2:0}, d2={-1:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={-2:0}, d2={-1:0}] [L40] EXPR \read(*pa) VAL [d1={-2:0}, d2={-1:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={-2:0}, d2={-1:0}] [L40] EXPR \read(*pa) VAL [d1={-2:0}, d2={-1:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={-2:0}, d2={-1:0}] [L40] EXPR \read(*pa) VAL [d1={-2:0}, d2={-1:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={-2:0}, d2={-1:0}] [L40] EXPR \read(*pa) VAL [d1={-2:0}, d2={-1:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={-2:0}, d2={-1:0}] [L40] EXPR \read(*pa) VAL [d1={-2:0}, d2={-1:0}] [L40] COND TRUE i <= *pa [L41] ++i VAL [d1={-2:0}, d2={-1:0}] [L40] EXPR \read(*pa) VAL [d1={-2:0}, d2={-1:0}] [L40] COND FALSE !(i <= *pa) [L28] EXPR s1->array[i] [L28] return s1->array[i] == i; [L43] COND TRUE !check(pd2, i) [L50] __VERIFIER_error() VAL [d1={-2:0}, d2={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 258.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -203.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 387.06 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: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * CodeCheck took 4725.27 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 840.6 MB in the end (delta: 277.0 MB). Peak memory consumption was 342.0 MB. Max. memory is 11.5 GB. * Witness Printer took 95.09 ms. Allocated memory is still 1.3 GB. Free memory was 840.6 MB in the beginning and 830.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...