./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/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_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/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_8f7c6403-3364-4680-a390-01038167520b/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_8f7c6403-3364-4680-a390-01038167520b/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 4bb6c46a4de77c33ebd5db0d25fe513601ef52929336922ed8d1cb2e429dd77c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:36:34,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:36:34,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:36:34,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:36:34,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:36:34,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:36:34,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:36:34,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:36:34,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:36:34,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:36:34,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:36:34,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:36:34,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:36:34,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:36:34,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:36:34,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:36:34,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:36:34,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:36:34,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:36:34,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:36:34,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:36:34,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:36:34,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:36:34,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:36:34,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:36:34,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:36:34,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:36:34,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:36:34,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:36:34,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:36:34,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:36:34,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:36:34,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:36:34,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:36:34,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:36:34,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:36:34,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:36:34,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:36:34,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:36:34,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:36:34,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:36:34,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:36:34,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:36:34,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:36:34,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:36:34,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:36:34,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:36:34,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:36:34,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:36:34,868 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:36:34,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:36:34,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:36:34,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:36:34,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:36:34,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:36:34,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:36:34,877 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:36:34,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:36:34,877 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:36:34,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:36:34,878 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:36:34,878 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:36:34,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:36:34,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:36:34,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:36:34,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:36:34,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:36:34,879 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:36:34,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:36:34,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:36:34,880 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_8f7c6403-3364-4680-a390-01038167520b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bb6c46a4de77c33ebd5db0d25fe513601ef52929336922ed8d1cb2e429dd77c [2021-11-23 01:36:35,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:36:35,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:36:35,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:36:35,167 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:36:35,168 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:36:35,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2021-11-23 01:36:35,239 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/data/4eee6bf8e/758b2837cce74d36a16a0ac89680f2cc/FLAG22fc229ec [2021-11-23 01:36:35,774 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:36:35,782 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2021-11-23 01:36:35,795 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/data/4eee6bf8e/758b2837cce74d36a16a0ac89680f2cc/FLAG22fc229ec [2021-11-23 01:36:36,218 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/data/4eee6bf8e/758b2837cce74d36a16a0ac89680f2cc [2021-11-23 01:36:36,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:36:36,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:36:36,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:36:36,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:36:36,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:36:36,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:36:36" (1/1) ... [2021-11-23 01:36:36,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6206d0d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:36, skipping insertion in model container [2021-11-23 01:36:36,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:36:36" (1/1) ... [2021-11-23 01:36:36,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:36:36,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:36:36,682 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_8f7c6403-3364-4680-a390-01038167520b/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2021-11-23 01:36:36,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:36:36,696 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:36:36,739 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_8f7c6403-3364-4680-a390-01038167520b/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2021-11-23 01:36:36,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:36:36,777 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:36:36,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:36 WrapperNode [2021-11-23 01:36:36,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:36:36,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:36:36,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:36:36,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:36:36,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:36" (1/1) ... [2021-11-23 01:36:36,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:36" (1/1) ... [2021-11-23 01:36:36,847 INFO L137 Inliner]: procedures = 119, calls = 39, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 121 [2021-11-23 01:36:36,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:36:36,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:36:36,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:36:36,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:36:36,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:36" (1/1) ... [2021-11-23 01:36:36,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:36" (1/1) ... [2021-11-23 01:36:36,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:36" (1/1) ... [2021-11-23 01:36:36,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:36" (1/1) ... [2021-11-23 01:36:36,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:36" (1/1) ... [2021-11-23 01:36:36,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:36" (1/1) ... [2021-11-23 01:36:36,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:36" (1/1) ... [2021-11-23 01:36:36,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:36:36,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:36:36,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:36:36,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:36:36,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:36:36" (1/1) ... [2021-11-23 01:36:36,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:36:36,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:36:36,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:36:36,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:36:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:36:36,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:36:36,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:36:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:36:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:36:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:36:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:36:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:36:36,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:36:36,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:36:37,080 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:36:37,081 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:36:37,393 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:36:37,431 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:36:37,431 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-23 01:36:37,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:36:37 BoogieIcfgContainer [2021-11-23 01:36:37,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:36:37,435 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:36:37,435 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:36:37,445 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:36:37,445 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:36:37" (1/1) ... [2021-11-23 01:36:37,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:36:37,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2021-11-23 01:36:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2021-11-23 01:36:37,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 01:36:37,513 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:37,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:36:37,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:37,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2021-11-23 01:36:37,723 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-11-23 01:36:37,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:36:37,723 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:37,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:36:37,806 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:36:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:36:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:36:37,913 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:36:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:36:37,964 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-11-23 01:36:38,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:36:38 ImpRootNode [2021-11-23 01:36:38,009 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:36:38,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:36:38,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:36:38,010 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:36:38,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:36:37" (3/4) ... [2021-11-23 01:36:38,013 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:36:38,052 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:36:38,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:36:38,053 INFO L158 Benchmark]: Toolchain (without parser) took 1830.37ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 66.6MB in the beginning and 95.6MB in the end (delta: -29.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:36:38,053 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:36:38,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 554.75ms. Allocated memory is still 109.1MB. Free memory was 66.4MB in the beginning and 76.2MB in the end (delta: -9.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 01:36:38,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.88ms. Allocated memory is still 109.1MB. Free memory was 76.2MB in the beginning and 74.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:36:38,055 INFO L158 Benchmark]: Boogie Preprocessor took 37.23ms. Allocated memory is still 109.1MB. Free memory was 74.1MB in the beginning and 72.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:36:38,056 INFO L158 Benchmark]: RCFGBuilder took 548.45ms. Allocated memory is still 109.1MB. Free memory was 72.4MB in the beginning and 54.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 01:36:38,057 INFO L158 Benchmark]: CodeCheck took 574.59ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 54.3MB in the beginning and 97.7MB in the end (delta: -43.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:36:38,057 INFO L158 Benchmark]: Witness Printer took 41.99ms. Allocated memory is still 132.1MB. Free memory was 97.7MB in the beginning and 95.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:36:38,060 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 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 0.29ms. Allocated memory is still 109.1MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 554.75ms. Allocated memory is still 109.1MB. Free memory was 66.4MB in the beginning and 76.2MB in the end (delta: -9.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.88ms. Allocated memory is still 109.1MB. Free memory was 76.2MB in the beginning and 74.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.23ms. Allocated memory is still 109.1MB. Free memory was 74.1MB in the beginning and 72.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.45ms. Allocated memory is still 109.1MB. Free memory was 72.4MB in the beginning and 54.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 574.59ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 54.3MB in the beginning and 97.7MB in the end (delta: -43.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.99ms. Allocated memory is still 132.1MB. Free memory was 97.7MB in the beginning and 95.6MB 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! [2021-11-23 01:36:38,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f7c6403-3364-4680-a390-01038167520b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE