./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test22-2.c --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_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/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_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/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_5688bdec-1b88-4fb7-a685-131ae7275199/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 0ac3f9dde39c1c30daf84e7d2d3f68c4363e658cdbd9aae18974f8ff3d9b4fc7 --- 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 16:47:19,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:47:19,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:47:19,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:47:19,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:47:19,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:47:19,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:47:19,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:47:19,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:47:19,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:47:19,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:47:19,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:47:19,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:47:19,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:47:19,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:47:19,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:47:19,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:47:19,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:47:19,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:47:19,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:47:19,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:47:19,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:47:19,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:47:19,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:47:19,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:47:19,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:47:19,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:47:19,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:47:19,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:47:19,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:47:19,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:47:19,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:47:19,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:47:19,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:47:19,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:47:19,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:47:19,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:47:19,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:47:19,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:47:19,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:47:19,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:47:19,928 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:47:19,957 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:47:19,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:47:19,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:47:19,959 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:47:19,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:47:19,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:47:19,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:47:19,971 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:47:19,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:47:19,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:47:19,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:47:19,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:47:19,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:47:19,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:47:19,973 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:47:19,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:47:19,973 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:47:19,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:47:19,974 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:47:19,974 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:47:19,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:47:19,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:47:19,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:47:19,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:47:19,975 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:47:19,976 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:47:19,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:47:19,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:47:19,976 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_5688bdec-1b88-4fb7-a685-131ae7275199/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ac3f9dde39c1c30daf84e7d2d3f68c4363e658cdbd9aae18974f8ff3d9b4fc7 [2022-10-17 16:47:20,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:47:20,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:47:20,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:47:20,332 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:47:20,333 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:47:20,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/ldv-regression/test22-2.c [2022-10-17 16:47:20,434 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/data/8669951b9/3235409ef7f4465785ade85a3d6797f6/FLAG9d3c63857 [2022-10-17 16:47:20,953 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:47:20,954 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/sv-benchmarks/c/ldv-regression/test22-2.c [2022-10-17 16:47:20,962 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/data/8669951b9/3235409ef7f4465785ade85a3d6797f6/FLAG9d3c63857 [2022-10-17 16:47:21,319 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/data/8669951b9/3235409ef7f4465785ade85a3d6797f6 [2022-10-17 16:47:21,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:47:21,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:47:21,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:47:21,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:47:21,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:47:21,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a0277d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21, skipping insertion in model container [2022-10-17 16:47:21,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:47:21,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:47:21,654 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_5688bdec-1b88-4fb7-a685-131ae7275199/sv-benchmarks/c/ldv-regression/test22-2.c[1029,1042] [2022-10-17 16:47:21,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:47:21,672 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:47:21,711 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_5688bdec-1b88-4fb7-a685-131ae7275199/sv-benchmarks/c/ldv-regression/test22-2.c[1029,1042] [2022-10-17 16:47:21,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:47:21,737 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:47:21,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21 WrapperNode [2022-10-17 16:47:21,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:47:21,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:47:21,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:47:21,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:47:21,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,816 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2022-10-17 16:47:21,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:47:21,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:47:21,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:47:21,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:47:21,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,852 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:47:21,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:47:21,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:47:21,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:47:21,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:21" (1/1) ... [2022-10-17 16:47:21,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:47:21,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:47:21,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:47:21,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:47:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:47:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:47:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:47:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2022-10-17 16:47:21,964 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2022-10-17 16:47:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:47:21,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:47:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:47:22,060 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:47:22,063 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:47:22,293 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:47:22,484 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:47:22,488 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:47:22,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:47:22 BoogieIcfgContainer [2022-10-17 16:47:22,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:47:22,492 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:47:22,492 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:47:22,503 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:47:22,503 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:47:22" (1/1) ... [2022-10-17 16:47:22,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:47:22,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:47:22,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2022-10-17 16:47:22,597 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-10-17 16:47:22,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 16:47:22,603 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:47:22,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:47:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:47:22,919 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:47:22,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:47:22,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2022-10-17 16:47:22,964 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-10-17 16:47:22,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 16:47:22,965 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:47:22,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:47:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:47:23,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:47:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:47:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:47:23,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:47:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:47:23,343 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-10-17 16:47:23,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:47:23 ImpRootNode [2022-10-17 16:47:23,434 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:47:23,436 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:47:23,436 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:47:23,436 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:47:23,437 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:47:22" (3/4) ... [2022-10-17 16:47:23,440 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:47:23,525 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:47:23,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:47:23,534 INFO L158 Benchmark]: Toolchain (without parser) took 2209.66ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 66.9MB in the beginning and 84.5MB in the end (delta: -17.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-10-17 16:47:23,535 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 102.8MB. Free memory was 72.9MB in the beginning and 72.9MB in the end (delta: 32.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:47:23,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.94ms. Allocated memory is still 102.8MB. Free memory was 66.7MB in the beginning and 76.8MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:47:23,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.31ms. Allocated memory is still 102.8MB. Free memory was 76.8MB in the beginning and 75.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:47:23,540 INFO L158 Benchmark]: Boogie Preprocessor took 39.68ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 73.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:47:23,541 INFO L158 Benchmark]: RCFGBuilder took 633.06ms. Allocated memory is still 102.8MB. Free memory was 73.7MB in the beginning and 58.7MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 16:47:23,546 INFO L158 Benchmark]: CodeCheck took 941.94ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 58.7MB in the beginning and 86.8MB in the end (delta: -28.1MB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. [2022-10-17 16:47:23,548 INFO L158 Benchmark]: Witness Printer took 97.01ms. Allocated memory is still 130.0MB. Free memory was 86.8MB in the beginning and 84.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:47:23,556 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 95 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, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 50]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L11] struct dummy d1, d2; [L34] CALL init() [L15] d1.a = __VERIFIER_nondet_int() [L16] d1.b = __VERIFIER_nondet_int() [L18] d2.a = __VERIFIER_nondet_int() [L19] d2.b = __VERIFIER_nondet_int() [L34] RET init() [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={4:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={4:0}, pd1={4:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={5:0}, pd1={4:0}, pd2={4:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L36] int i = __VERIFIER_nondet_int(); [L37] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L37] EXPR (*pd2).a [L37] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [(*pd2).a=1, d1={4:0}, d2={5:0}, i=0, pd1={4:0}, pd1 != 0 && pd1 == pd2 && (*pd2).a > 0=1, pd2={4:0}, pd3={5:0}] [L37] COND TRUE pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L38] int *pa = &pd1->a; [L39] EXPR pd3->a [L39] i = pd3->a - 10 [L40] EXPR \read(*pa) VAL [\read(*pa)=1, d1={4:0}, d2={5:0}, i=2, pa={4:0}, pd1={4:0}, pd2={4:0}, pd3={5:0}] [L40] COND FALSE !(i < *pa) [L43] CALL, EXPR check(pd2, i) [L29] EXPR s1->a [L29] return s1->a == i; [L43] RET, EXPR check(pd2, i) [L43] COND TRUE !check(pd2, i) [L50] reach_error() VAL [d1={4:0}, d2={5:0}, i=2, pa={4:0}, pd1={4:0}, pd2={4:0}, pd3={5:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 102.8MB. Free memory was 72.9MB in the beginning and 72.9MB in the end (delta: 32.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.94ms. Allocated memory is still 102.8MB. Free memory was 66.7MB in the beginning and 76.8MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.31ms. Allocated memory is still 102.8MB. Free memory was 76.8MB in the beginning and 75.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.68ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 73.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 633.06ms. Allocated memory is still 102.8MB. Free memory was 73.7MB in the beginning and 58.7MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 941.94ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 58.7MB in the beginning and 86.8MB in the end (delta: -28.1MB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. * Witness Printer took 97.01ms. Allocated memory is still 130.0MB. Free memory was 86.8MB in the beginning and 84.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:47:23,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5688bdec-1b88-4fb7-a685-131ae7275199/bin/ukojak-92XMlrwhuB/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