./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB --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 4bb6c46a4de77c33ebd5db0d25fe513601ef52929336922ed8d1cb2e429dd77c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:29:00,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:29:00,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:29:00,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:29:00,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:29:00,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:29:00,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:29:00,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:29:00,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:29:00,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:29:00,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:29:00,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:29:00,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:29:00,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:29:00,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:29:00,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:29:00,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:29:00,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:29:00,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:29:00,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:29:00,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:29:00,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:29:00,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:29:00,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:29:00,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:29:00,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:29:00,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:29:00,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:29:00,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:29:00,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:29:00,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:29:00,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:29:00,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:29:00,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:29:00,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:29:00,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:29:00,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:29:00,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:29:00,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:29:00,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:29:00,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:29:00,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:29:00,270 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:29:00,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:29:00,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:29:00,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:29:00,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:29:00,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:29:00,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:29:00,277 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:29:00,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:29:00,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:29:00,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:29:00,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:29:00,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:29:00,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:29:00,279 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:29:00,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:29:00,280 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:29:00,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:29:00,280 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:29:00,280 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:29:00,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:29:00,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:29:00,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:29:00,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:29:00,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:29:00,282 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:29:00,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:29:00,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:29:00,283 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_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bb6c46a4de77c33ebd5db0d25fe513601ef52929336922ed8d1cb2e429dd77c [2022-10-17 16:29:00,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:29:00,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:29:00,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:29:00,602 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:29:00,604 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:29:00,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2022-10-17 16:29:00,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/data/1b4383ecf/7dbb9cab9e92452d89ac8a95f117d17d/FLAGd47c0784d [2022-10-17 16:29:01,217 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:29:01,218 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2022-10-17 16:29:01,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/data/1b4383ecf/7dbb9cab9e92452d89ac8a95f117d17d/FLAGd47c0784d [2022-10-17 16:29:01,541 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/data/1b4383ecf/7dbb9cab9e92452d89ac8a95f117d17d [2022-10-17 16:29:01,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:29:01,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:29:01,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:29:01,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:29:01,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:29:01,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:29:01" (1/1) ... [2022-10-17 16:29:01,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff5e728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:01, skipping insertion in model container [2022-10-17 16:29:01,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:29:01" (1/1) ... [2022-10-17 16:29:01,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:29:01,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:29:02,031 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_f21754df-4775-4817-8e29-4b3f049ee904/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2022-10-17 16:29:02,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:29:02,046 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:29:02,102 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_f21754df-4775-4817-8e29-4b3f049ee904/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2022-10-17 16:29:02,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:29:02,148 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:29:02,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:02 WrapperNode [2022-10-17 16:29:02,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:29:02,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:29:02,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:29:02,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:29:02,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:02" (1/1) ... [2022-10-17 16:29:02,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:02" (1/1) ... [2022-10-17 16:29:02,234 INFO L138 Inliner]: procedures = 119, calls = 39, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 121 [2022-10-17 16:29:02,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:29:02,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:29:02,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:29:02,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:29:02,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:02" (1/1) ... [2022-10-17 16:29:02,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:02" (1/1) ... [2022-10-17 16:29:02,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:02" (1/1) ... [2022-10-17 16:29:02,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:02" (1/1) ... [2022-10-17 16:29:02,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:02" (1/1) ... [2022-10-17 16:29:02,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:02" (1/1) ... [2022-10-17 16:29:02,292 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:02" (1/1) ... [2022-10-17 16:29:02,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:02" (1/1) ... [2022-10-17 16:29:02,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:29:02,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:29:02,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:29:02,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:29:02,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:29:02" (1/1) ... [2022-10-17 16:29:02,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:29:02,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:29:02,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:29:02,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:29:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:29:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:29:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:29:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:29:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 16:29:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 16:29:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:29:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:29:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:29:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:29:02,498 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:29:02,500 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:29:02,812 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:29:02,890 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:29:02,890 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-10-17 16:29:02,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:29:02 BoogieIcfgContainer [2022-10-17 16:29:02,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:29:02,895 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:29:02,895 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:29:02,931 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:29:02,933 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:29:02" (1/1) ... [2022-10-17 16:29:02,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:29:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:29:03,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2022-10-17 16:29:03,028 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2022-10-17 16:29:03,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:29:03,031 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:29:03,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:29:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:29:03,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:29:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:29:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2022-10-17 16:29:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2022-10-17 16:29:03,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:29:03,317 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:29:03,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:29:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:29:03,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:29:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:29:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:29:03,598 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:29:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:29:03,650 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-10-17 16:29:03,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:29:03 ImpRootNode [2022-10-17 16:29:03,679 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:29:03,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:29:03,680 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:29:03,681 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:29:03,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:29:02" (3/4) ... [2022-10-17 16:29:03,683 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:29:03,742 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:29:03,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:29:03,744 INFO L158 Benchmark]: Toolchain (without parser) took 2198.95ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 71.1MB in the beginning and 78.9MB in the end (delta: -7.8MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2022-10-17 16:29:03,744 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 107.0MB. Free memory was 77.1MB in the beginning and 77.1MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:29:03,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.43ms. Allocated memory is still 107.0MB. Free memory was 70.9MB in the beginning and 73.4MB in the end (delta: -2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:29:03,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.71ms. Allocated memory is still 107.0MB. Free memory was 73.4MB in the beginning and 71.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:29:03,746 INFO L158 Benchmark]: Boogie Preprocessor took 63.76ms. Allocated memory is still 107.0MB. Free memory was 71.2MB in the beginning and 69.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:29:03,747 INFO L158 Benchmark]: RCFGBuilder took 593.14ms. Allocated memory is still 107.0MB. Free memory was 69.5MB in the beginning and 48.2MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-10-17 16:29:03,747 INFO L158 Benchmark]: CodeCheck took 785.02ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 48.2MB in the beginning and 80.9MB in the end (delta: -32.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:29:03,748 INFO L158 Benchmark]: Witness Printer took 62.42ms. Allocated memory is still 130.0MB. Free memory was 80.9MB in the beginning and 78.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:29:03,751 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 16 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 1063]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1000] SLL* head = malloc(sizeof(SLL)); [L1001] head->next = ((void*)0) [L1002] head->prev = ((void*)0) [L1003] head->data = 0 [L1005] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1008] COND FALSE !(__VERIFIER_nondet_int()) [L1019] COND TRUE __VERIFIER_nondet_int() [L1020] x = malloc(sizeof(SLL)) [L1021] x->data = 1 [L1022] x->next = head [L1023] x->prev = ((void*)0) [L1024] head = x VAL [head={-2:0}, x={-2:0}] [L1050] x = head VAL [head={-2:0}, x={-2:0}] [L1053] EXPR x->data VAL [head={-2:0}, x={-2:0}, x->data=1] [L1053] COND FALSE !(x->data != 1) [L1059] EXPR x->next [L1059] x = x->next [L1060] COND TRUE \read(*x) [L1062] EXPR x->data VAL [head={-2:0}, x={-1:0}, x->data=0] [L1062] COND TRUE x->data != 1 [L1063] reach_error() VAL [head={-2:0}, x={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 107.0MB. Free memory was 77.1MB in the beginning and 77.1MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.43ms. Allocated memory is still 107.0MB. Free memory was 70.9MB in the beginning and 73.4MB in the end (delta: -2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.71ms. Allocated memory is still 107.0MB. Free memory was 73.4MB in the beginning and 71.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.76ms. Allocated memory is still 107.0MB. Free memory was 71.2MB in the beginning and 69.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 593.14ms. Allocated memory is still 107.0MB. Free memory was 69.5MB in the beginning and 48.2MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 785.02ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 48.2MB in the beginning and 80.9MB in the end (delta: -32.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.42ms. Allocated memory is still 130.0MB. Free memory was 80.9MB in the beginning and 78.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:29:03,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f21754df-4775-4817-8e29-4b3f049ee904/bin/ukojak-92XMlrwhuB/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