./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test28-1.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_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/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_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test28-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/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_75d22840-a21d-4bfb-999b-e6000e7351e3/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 d382873608f47f58e61612d5190ceb3fce961896aaa2cb7a799c0e7d7be98b0e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:24:42,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:24:42,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:24:42,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:24:42,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:24:42,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:24:42,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:24:42,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:24:42,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:24:42,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:24:42,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:24:42,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:24:42,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:24:42,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:24:42,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:24:42,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:24:42,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:24:42,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:24:42,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:24:42,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:24:42,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:24:42,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:24:42,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:24:42,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:24:42,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:24:42,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:24:42,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:24:42,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:24:42,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:24:42,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:24:42,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:24:42,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:24:42,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:24:42,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:24:42,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:24:42,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:24:42,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:24:42,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:24:42,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:24:42,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:24:42,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:24:42,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:24:42,768 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:24:42,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:24:42,772 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:24:42,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:24:42,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:24:42,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:24:42,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:24:42,774 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:24:42,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:24:42,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:24:42,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:24:42,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:24:42,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:24:42,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:24:42,780 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:24:42,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:24:42,780 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:24:42,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:24:42,781 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:24:42,781 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:24:42,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:24:42,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:24:42,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:24:42,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:24:42,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:24:42,782 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:24:42,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:24:42,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:24:42,784 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_75d22840-a21d-4bfb-999b-e6000e7351e3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d382873608f47f58e61612d5190ceb3fce961896aaa2cb7a799c0e7d7be98b0e [2021-11-22 23:24:43,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:24:43,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:24:43,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:24:43,041 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:24:43,042 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:24:43,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/ldv-regression/test28-1.c [2021-11-22 23:24:43,120 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/data/202fb9008/4a616ee89ffe4bbfaa7f3b073ffc3c10/FLAGd78e906b1 [2021-11-22 23:24:43,586 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:24:43,587 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/sv-benchmarks/c/ldv-regression/test28-1.c [2021-11-22 23:24:43,593 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/data/202fb9008/4a616ee89ffe4bbfaa7f3b073ffc3c10/FLAGd78e906b1 [2021-11-22 23:24:43,950 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/data/202fb9008/4a616ee89ffe4bbfaa7f3b073ffc3c10 [2021-11-22 23:24:43,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:24:43,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:24:43,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:24:43,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:24:43,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:24:43,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:24:43" (1/1) ... [2021-11-22 23:24:43,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff094aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:43, skipping insertion in model container [2021-11-22 23:24:43,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:24:43" (1/1) ... [2021-11-22 23:24:43,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:24:43,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:24:44,165 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_75d22840-a21d-4bfb-999b-e6000e7351e3/sv-benchmarks/c/ldv-regression/test28-1.c[613,626] [2021-11-22 23:24:44,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:24:44,176 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:24:44,192 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_75d22840-a21d-4bfb-999b-e6000e7351e3/sv-benchmarks/c/ldv-regression/test28-1.c[613,626] [2021-11-22 23:24:44,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:24:44,207 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:24:44,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:44 WrapperNode [2021-11-22 23:24:44,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:24:44,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:24:44,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:24:44,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:24:44,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:44" (1/1) ... [2021-11-22 23:24:44,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:44" (1/1) ... [2021-11-22 23:24:44,250 INFO L137 Inliner]: procedures = 13, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2021-11-22 23:24:44,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:24:44,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:24:44,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:24:44,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:24:44,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:44" (1/1) ... [2021-11-22 23:24:44,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:44" (1/1) ... [2021-11-22 23:24:44,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:44" (1/1) ... [2021-11-22 23:24:44,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:44" (1/1) ... [2021-11-22 23:24:44,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:44" (1/1) ... [2021-11-22 23:24:44,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:44" (1/1) ... [2021-11-22 23:24:44,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:44" (1/1) ... [2021-11-22 23:24:44,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:24:44,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:24:44,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:24:44,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:24:44,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:44" (1/1) ... [2021-11-22 23:24:44,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:24:44,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:24:44,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:24:44,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:24:44,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:24:44,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:24:44,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:24:44,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:24:44,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:24:44,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:24:44,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:24:44,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:24:44,409 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:24:44,410 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:24:44,573 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:24:44,715 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:24:44,716 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 23:24:44,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:24:44 BoogieIcfgContainer [2021-11-22 23:24:44,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:24:44,719 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:24:44,719 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:24:44,732 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:24:44,732 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:24:44" (1/1) ... [2021-11-22 23:24:44,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:44,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:44,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-11-22 23:24:44,797 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-11-22 23:24:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-22 23:24:44,799 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:44,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:24:44,909 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:24:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:24:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:24:44,992 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:24:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:24:45,031 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-11-22 23:24:45,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 11:24:45 ImpRootNode [2021-11-22 23:24:45,065 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-22 23:24:45,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:24:45,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:24:45,065 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:24:45,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:24:44" (3/4) ... [2021-11-22 23:24:45,068 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 23:24:45,100 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-22 23:24:45,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:24:45,101 INFO L158 Benchmark]: Toolchain (without parser) took 1144.01ms. Allocated memory is still 127.9MB. Free memory was 96.4MB in the beginning and 74.0MB in the end (delta: 22.3MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2021-11-22 23:24:45,102 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 44.3MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:24:45,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.87ms. Allocated memory is still 127.9MB. Free memory was 96.0MB in the beginning and 103.7MB in the end (delta: -7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 23:24:45,103 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.15ms. Allocated memory is still 127.9MB. Free memory was 103.7MB in the beginning and 102.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:24:45,104 INFO L158 Benchmark]: Boogie Preprocessor took 21.18ms. Allocated memory is still 127.9MB. Free memory was 101.9MB in the beginning and 101.1MB in the end (delta: 805.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:24:45,105 INFO L158 Benchmark]: RCFGBuilder took 444.96ms. Allocated memory is still 127.9MB. Free memory was 101.1MB in the beginning and 88.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 23:24:45,105 INFO L158 Benchmark]: CodeCheck took 345.58ms. Allocated memory is still 127.9MB. Free memory was 88.5MB in the beginning and 75.5MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-22 23:24:45,106 INFO L158 Benchmark]: Witness Printer took 34.82ms. Allocated memory is still 127.9MB. Free memory was 75.5MB in the beginning and 74.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:24:45,111 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, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: 29]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] struct dummy d1, d2; [L15] int n = __VERIFIER_nondet_int(); [L16] EXPR n ? &d1 : &d2 [L16] struct dummy *pd = n ? &d1 : &d2; [L17] COND TRUE pd == &d2 [L18] pd->a = 0 [L19] pd->b = __VERIFIER_nondet_int() [L23] pd == &d2 && d2.b != 0 [L23] EXPR d2.b [L23] pd == &d2 && d2.b != 0 VAL [__VERIFIER_nondet_int()=0, d1={8857:0}, d2={8858:0}, d2.b=11798, n=0, pd={8858:0}, pd == &d2 && d2.b != 0=1] [L23] COND TRUE pd == &d2 && d2.b != 0 [L29] reach_error() VAL [__VERIFIER_nondet_int()=0, d1={8857:0}, d2={8858:0}, n=0, pd={8858:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 44.3MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.87ms. Allocated memory is still 127.9MB. Free memory was 96.0MB in the beginning and 103.7MB in the end (delta: -7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.15ms. Allocated memory is still 127.9MB. Free memory was 103.7MB in the beginning and 102.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.18ms. Allocated memory is still 127.9MB. Free memory was 101.9MB in the beginning and 101.1MB in the end (delta: 805.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 444.96ms. Allocated memory is still 127.9MB. Free memory was 101.1MB in the beginning and 88.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 345.58ms. Allocated memory is still 127.9MB. Free memory was 88.5MB in the beginning and 75.5MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 34.82ms. Allocated memory is still 127.9MB. Free memory was 75.5MB in the beginning and 74.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-22 23:24:45,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d22840-a21d-4bfb-999b-e6000e7351e3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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