./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test23-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ --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 4c2b7377d2b430a15e16457512411598a883b6588c528bba211e64f887de4d8e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:25:12,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:25:12,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:25:12,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:25:12,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:25:12,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:25:12,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:25:12,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:25:12,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:25:12,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:25:12,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:25:12,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:25:12,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:25:12,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:25:12,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:25:12,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:25:12,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:25:12,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:25:12,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:25:12,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:25:12,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:25:12,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:25:12,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:25:12,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:25:12,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:25:12,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:25:12,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:25:12,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:25:12,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:25:12,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:25:12,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:25:12,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:25:12,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:25:12,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:25:12,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:25:12,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:25:12,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:25:12,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:25:12,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:25:12,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:25:12,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:25:12,273 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:25:12,296 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:25:12,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:25:12,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:25:12,298 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:25:12,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:25:12,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:25:12,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:25:12,299 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:25:12,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:25:12,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:25:12,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:25:12,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:25:12,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:25:12,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:25:12,300 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:25:12,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:25:12,301 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:25:12,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:25:12,301 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:25:12,301 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:25:12,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:25:12,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:25:12,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:25:12,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:25:12,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:25:12,303 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:25:12,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:25:12,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:25:12,303 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_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c2b7377d2b430a15e16457512411598a883b6588c528bba211e64f887de4d8e [2021-11-22 23:25:12,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:25:12,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:25:12,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:25:12,603 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:25:12,604 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:25:12,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/ldv-regression/test23-1.c [2021-11-22 23:25:12,691 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/data/ca97205fa/ca86e343014741d0a1988472dd347ef5/FLAG99ffa2d17 [2021-11-22 23:25:13,133 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:25:13,134 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/sv-benchmarks/c/ldv-regression/test23-1.c [2021-11-22 23:25:13,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/data/ca97205fa/ca86e343014741d0a1988472dd347ef5/FLAG99ffa2d17 [2021-11-22 23:25:13,526 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/data/ca97205fa/ca86e343014741d0a1988472dd347ef5 [2021-11-22 23:25:13,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:25:13,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:25:13,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:25:13,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:25:13,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:25:13,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@219156fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13, skipping insertion in model container [2021-11-22 23:25:13,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:25:13,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:25:13,737 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/sv-benchmarks/c/ldv-regression/test23-1.c[1075,1088] [2021-11-22 23:25:13,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:25:13,752 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:25:13,771 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/sv-benchmarks/c/ldv-regression/test23-1.c[1075,1088] [2021-11-22 23:25:13,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:25:13,785 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:25:13,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13 WrapperNode [2021-11-22 23:25:13,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:25:13,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:25:13,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:25:13,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:25:13,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,823 INFO L137 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2021-11-22 23:25:13,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:25:13,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:25:13,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:25:13,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:25:13,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:25:13,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:25:13,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:25:13,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:25:13,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:25:13" (1/1) ... [2021-11-22 23:25:13,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:25:13,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:25:13,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:25:13,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:25:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:25:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:25:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:25:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2021-11-22 23:25:13,929 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2021-11-22 23:25:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:25:13,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:25:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:25:14,000 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:25:14,002 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:25:14,200 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:25:14,251 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:25:14,251 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 23:25:14,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:25:14 BoogieIcfgContainer [2021-11-22 23:25:14,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:25:14,254 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:25:14,255 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:25:14,265 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:25:14,265 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:25:14" (1/1) ... [2021-11-22 23:25:14,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:25:14,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:14,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2021-11-22 23:25:14,325 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-11-22 23:25:14,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-22 23:25:14,330 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:14,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:14,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:25:14,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:14,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2021-11-22 23:25:14,564 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-11-22 23:25:14,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 23:25:14,564 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:14,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:25:14,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:14,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2021-11-22 23:25:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-11-22 23:25:14,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-22 23:25:14,804 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:14,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:14,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:25:15,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:15,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2021-11-22 23:25:15,133 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2021-11-22 23:25:15,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 23:25:15,134 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:15,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:25:15,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:15,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2021-11-22 23:25:15,506 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2021-11-22 23:25:15,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-22 23:25:15,507 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:15,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:25:15,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2021-11-22 23:25:15,862 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2021-11-22 23:25:15,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 23:25:15,863 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:15,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:16,053 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:25:16,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:16,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2021-11-22 23:25:16,303 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2021-11-22 23:25:16,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-22 23:25:16,304 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:16,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:16,496 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:25:16,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:16,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2021-11-22 23:25:16,741 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2021-11-22 23:25:16,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 23:25:16,742 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:16,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:25:17,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:17,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2021-11-22 23:25:17,224 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2021-11-22 23:25:17,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-22 23:25:17,225 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:17,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:17,445 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:25:17,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2021-11-22 23:25:17,738 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2021-11-22 23:25:17,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-22 23:25:17,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:17,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:25:18,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:18,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 35 states and 41 transitions. [2021-11-22 23:25:18,229 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2021-11-22 23:25:18,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-22 23:25:18,232 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:18,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:18,420 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:25:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:18,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 37 states and 43 transitions. [2021-11-22 23:25:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2021-11-22 23:25:18,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-22 23:25:18,795 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:18,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:25:19,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:19,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 39 states and 44 transitions. [2021-11-22 23:25:19,319 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2021-11-22 23:25:19,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-22 23:25:19,320 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:19,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:25:19,345 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:25:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:25:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:25:19,458 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:25:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:25:19,539 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2021-11-22 23:25:19,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 11:25:19 ImpRootNode [2021-11-22 23:25:19,614 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-22 23:25:19,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:25:19,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:25:19,615 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:25:19,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:25:14" (3/4) ... [2021-11-22 23:25:19,617 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 23:25:19,751 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-22 23:25:19,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:25:19,752 INFO L158 Benchmark]: Toolchain (without parser) took 6221.42ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 84.6MB in the beginning and 81.7MB in the end (delta: 2.9MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2021-11-22 23:25:19,753 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:25:19,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.84ms. Allocated memory is still 109.1MB. Free memory was 84.6MB in the beginning and 84.2MB in the end (delta: 337.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 23:25:19,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.16ms. Allocated memory is still 109.1MB. Free memory was 84.2MB in the beginning and 82.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:25:19,755 INFO L158 Benchmark]: Boogie Preprocessor took 24.34ms. Allocated memory is still 109.1MB. Free memory was 82.8MB in the beginning and 81.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:25:19,756 INFO L158 Benchmark]: RCFGBuilder took 404.58ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 68.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 23:25:19,757 INFO L158 Benchmark]: CodeCheck took 5359.82ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 68.9MB in the beginning and 85.9MB in the end (delta: -17.0MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2021-11-22 23:25:19,758 INFO L158 Benchmark]: Witness Printer took 136.48ms. Allocated memory is still 159.4MB. Free memory was 85.9MB in the beginning and 81.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 23:25:19,763 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 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 484 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 168 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 239 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 719 IncrementalHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 239 mSolverCounterUnsat, 168 mSDtfsCounter, 719 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1907 GetRequests, 1695 SyntacticMatches, 110 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4256 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 277 ConstructedInterpolants, 0 QuantifiedInterpolants, 1367 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: 52]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] struct dummy d1, d2; [L35] CALL init() [L16] d1.a = __VERIFIER_nondet_int() [L17] d1.b = __VERIFIER_nondet_int() [L19] d2.a = __VERIFIER_nondet_int() [L20] d2.b = __VERIFIER_nondet_int() [L35] RET init() [L36] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L25] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L25] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L36] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={4:0}] [L36] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L36] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L25] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L25] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L36] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={4:0}, pd1={4:0}] [L36] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L37] int i = __VERIFIER_nondet_int(); [L38] COND TRUE pd1 != 0 && pd1 == pd2 && i >= 0 && i < 10 [L39] pd2->array[i] = i [L40] int *pa = &pd1->array[i]; [L41] EXPR pd2->array[i] [L41] i = pd2->array[i] - 10 [L42] EXPR \read(*pa) VAL [\read(*pa)=6, d1={4:0}, d2={5:0}, i=-4, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] COND TRUE i <= *pa [L43] ++i VAL [d1={4:0}, d2={5:0}, i=-3, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] EXPR \read(*pa) VAL [\read(*pa)=6, d1={4:0}, d2={5:0}, i=-3, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] COND TRUE i <= *pa [L43] ++i VAL [d1={4:0}, d2={5:0}, i=-2, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] EXPR \read(*pa) VAL [\read(*pa)=6, d1={4:0}, d2={5:0}, i=-2, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] COND TRUE i <= *pa [L43] ++i VAL [d1={4:0}, d2={5:0}, i=-1, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] EXPR \read(*pa) VAL [\read(*pa)=6, d1={4:0}, d2={5:0}, i=-1, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] COND TRUE i <= *pa [L43] ++i VAL [d1={4:0}, d2={5:0}, i=0, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] EXPR \read(*pa) VAL [\read(*pa)=6, d1={4:0}, d2={5:0}, i=0, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] COND TRUE i <= *pa [L43] ++i VAL [d1={4:0}, d2={5:0}, i=1, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] EXPR \read(*pa) VAL [\read(*pa)=6, d1={4:0}, d2={5:0}, i=1, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] COND TRUE i <= *pa [L43] ++i VAL [d1={4:0}, d2={5:0}, i=2, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] EXPR \read(*pa) VAL [\read(*pa)=6, d1={4:0}, d2={5:0}, i=2, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] COND TRUE i <= *pa [L43] ++i VAL [d1={4:0}, d2={5:0}, i=3, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] EXPR \read(*pa) VAL [\read(*pa)=6, d1={4:0}, d2={5:0}, i=3, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] COND TRUE i <= *pa [L43] ++i VAL [d1={4:0}, d2={5:0}, i=4, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] EXPR \read(*pa) VAL [\read(*pa)=6, d1={4:0}, d2={5:0}, i=4, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] COND TRUE i <= *pa [L43] ++i VAL [d1={4:0}, d2={5:0}, i=5, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] EXPR \read(*pa) VAL [\read(*pa)=6, d1={4:0}, d2={5:0}, i=5, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] COND TRUE i <= *pa [L43] ++i VAL [d1={4:0}, d2={5:0}, i=6, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] EXPR \read(*pa) VAL [\read(*pa)=6, d1={4:0}, d2={5:0}, i=6, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] COND TRUE i <= *pa [L43] ++i VAL [d1={4:0}, d2={5:0}, i=7, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] EXPR \read(*pa) VAL [\read(*pa)=6, d1={4:0}, d2={5:0}, i=7, pa={4:32}, pd1={4:0}, pd2={4:0}] [L42] COND FALSE !(i <= *pa) [L45] CALL, EXPR check(pd2, i) [L30] EXPR s1->array[i] [L30] return s1->array[i] == i; [L45] RET, EXPR check(pd2, i) [L45] COND TRUE !check(pd2, i) [L52] reach_error() VAL [d1={4:0}, d2={5:0}, i=7, pa={4:32}, pd1={4:0}, pd2={4:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.84ms. Allocated memory is still 109.1MB. Free memory was 84.6MB in the beginning and 84.2MB in the end (delta: 337.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.16ms. Allocated memory is still 109.1MB. Free memory was 84.2MB in the beginning and 82.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.34ms. Allocated memory is still 109.1MB. Free memory was 82.8MB in the beginning and 81.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 404.58ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 68.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 5359.82ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 68.9MB in the beginning and 85.9MB in the end (delta: -17.0MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * Witness Printer took 136.48ms. Allocated memory is still 159.4MB. Free memory was 85.9MB in the beginning and 81.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-22 23:25:19,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a09172-f8a3-4833-8613-324a774b1061/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE