./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu --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 7887c90df48e0e32a16c0ae4217eb11a41b3b1af1e02493e847dc25239198c19 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:44:33,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:44:33,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:44:33,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:44:33,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:44:33,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:44:33,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:44:33,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:44:33,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:44:33,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:44:33,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:44:33,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:44:33,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:44:33,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:44:33,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:44:33,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:44:33,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:44:33,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:44:33,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:44:33,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:44:33,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:44:33,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:44:33,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:44:33,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:44:33,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:44:33,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:44:33,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:44:33,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:44:33,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:44:33,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:44:33,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:44:33,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:44:33,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:44:33,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:44:33,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:44:33,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:44:33,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:44:33,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:44:33,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:44:33,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:44:33,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:44:33,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:44:33,803 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:44:33,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:44:33,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:44:33,806 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:44:33,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:44:33,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:44:33,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:44:33,807 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:44:33,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:44:33,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:44:33,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:44:33,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:44:33,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:44:33,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:44:33,817 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:44:33,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:44:33,817 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:44:33,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:44:33,818 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:44:33,818 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:44:33,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:44:33,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:44:33,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:44:33,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:44:33,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:44:33,819 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:44:33,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:44:33,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:44:33,820 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_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7887c90df48e0e32a16c0ae4217eb11a41b3b1af1e02493e847dc25239198c19 [2021-11-23 15:44:34,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:44:34,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:44:34,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:44:34,116 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:44:34,117 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:44:34,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i [2021-11-23 15:44:34,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/data/bae705652/36248a76d4b7458ca318728ea0529333/FLAG81e89015c [2021-11-23 15:44:34,767 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:44:34,767 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i [2021-11-23 15:44:34,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/data/bae705652/36248a76d4b7458ca318728ea0529333/FLAG81e89015c [2021-11-23 15:44:35,061 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/data/bae705652/36248a76d4b7458ca318728ea0529333 [2021-11-23 15:44:35,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:44:35,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:44:35,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:44:35,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:44:35,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:44:35,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:35" (1/1) ... [2021-11-23 15:44:35,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a7411f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:35, skipping insertion in model container [2021-11-23 15:44:35,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:35" (1/1) ... [2021-11-23 15:44:35,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:44:35,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:44:35,460 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_825376ed-8b75-43ef-b857-fde5f853c117/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i[24046,24059] [2021-11-23 15:44:35,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:44:35,479 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:44:35,569 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_825376ed-8b75-43ef-b857-fde5f853c117/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i[24046,24059] [2021-11-23 15:44:35,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:44:35,605 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:44:35,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:35 WrapperNode [2021-11-23 15:44:35,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:44:35,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:44:35,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:44:35,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:44:35,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:35" (1/1) ... [2021-11-23 15:44:35,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:35" (1/1) ... [2021-11-23 15:44:35,684 INFO L137 Inliner]: procedures = 123, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2021-11-23 15:44:35,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:44:35,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:44:35,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:44:35,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:44:35,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:35" (1/1) ... [2021-11-23 15:44:35,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:35" (1/1) ... [2021-11-23 15:44:35,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:35" (1/1) ... [2021-11-23 15:44:35,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:35" (1/1) ... [2021-11-23 15:44:35,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:35" (1/1) ... [2021-11-23 15:44:35,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:35" (1/1) ... [2021-11-23 15:44:35,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:35" (1/1) ... [2021-11-23 15:44:35,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:44:35,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:44:35,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:44:35,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:44:35,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:35" (1/1) ... [2021-11-23 15:44:35,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:44:35,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:44:35,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:44:35,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:44:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:44:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:44:35,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:44:35,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:44:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:44:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:44:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:44:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:44:35,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:44:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:44:35,916 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:44:35,918 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:44:35,935 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:44:35,939 INFO L158 Benchmark]: Toolchain (without parser) took 872.78ms. Allocated memory is still 104.9MB. Free memory was 72.0MB in the beginning and 61.9MB in the end (delta: 10.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-11-23 15:44:35,940 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:44:35,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.50ms. Allocated memory is still 104.9MB. Free memory was 72.0MB in the beginning and 72.9MB in the end (delta: -960.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:44:35,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.91ms. Allocated memory is still 104.9MB. Free memory was 72.9MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:44:35,942 INFO L158 Benchmark]: Boogie Preprocessor took 58.29ms. Allocated memory is still 104.9MB. Free memory was 70.9MB in the beginning and 69.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:44:35,943 INFO L158 Benchmark]: RCFGBuilder took 192.05ms. Allocated memory is still 104.9MB. Free memory was 69.1MB in the beginning and 61.9MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:44:35,946 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.50ms. Allocated memory is still 104.9MB. Free memory was 72.0MB in the beginning and 72.9MB in the end (delta: -960.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.91ms. Allocated memory is still 104.9MB. Free memory was 72.9MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.29ms. Allocated memory is still 104.9MB. Free memory was 70.9MB in the beginning and 69.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 192.05ms. Allocated memory is still 104.9MB. Free memory was 69.1MB in the beginning and 61.9MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:44:35,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu --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 7887c90df48e0e32a16c0ae4217eb11a41b3b1af1e02493e847dc25239198c19 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:44:38,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:44:38,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:44:38,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:44:38,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:44:38,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:44:38,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:44:38,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:44:38,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:44:38,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:44:38,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:44:38,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:44:38,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:44:38,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:44:38,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:44:38,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:44:38,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:44:38,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:44:38,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:44:38,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:44:38,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:44:38,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:44:38,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:44:38,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:44:38,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:44:38,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:44:38,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:44:38,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:44:38,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:44:38,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:44:38,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:44:38,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:44:38,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:44:38,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:44:38,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:44:38,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:44:38,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:44:38,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:44:38,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:44:38,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:44:38,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:44:38,568 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:44:38,612 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:44:38,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:44:38,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:44:38,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:44:38,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:44:38,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:44:38,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:44:38,616 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:44:38,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:44:38,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:44:38,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:44:38,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:44:38,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:44:38,618 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:44:38,619 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:44:38,619 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:44:38,619 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:44:38,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:44:38,620 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:44:38,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:44:38,620 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:44:38,620 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:44:38,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:44:38,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:44:38,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:44:38,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:44:38,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:44:38,622 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:44:38,622 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:44:38,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:44:38,622 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:44:38,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:44:38,623 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7887c90df48e0e32a16c0ae4217eb11a41b3b1af1e02493e847dc25239198c19 [2021-11-23 15:44:39,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:44:39,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:44:39,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:44:39,048 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:44:39,049 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:44:39,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i [2021-11-23 15:44:39,127 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/data/70fc2488b/c3cf3c245a9d4e3f8f3bd0debe1e0ce2/FLAG1e5ba6471 [2021-11-23 15:44:39,787 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:44:39,788 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i [2021-11-23 15:44:39,806 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/data/70fc2488b/c3cf3c245a9d4e3f8f3bd0debe1e0ce2/FLAG1e5ba6471 [2021-11-23 15:44:40,036 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/data/70fc2488b/c3cf3c245a9d4e3f8f3bd0debe1e0ce2 [2021-11-23 15:44:40,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:44:40,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:44:40,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:44:40,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:44:40,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:44:40,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:40" (1/1) ... [2021-11-23 15:44:40,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79aa33bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:40, skipping insertion in model container [2021-11-23 15:44:40,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:40" (1/1) ... [2021-11-23 15:44:40,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:44:40,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:44:40,440 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_825376ed-8b75-43ef-b857-fde5f853c117/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i[24046,24059] [2021-11-23 15:44:40,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:44:40,454 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:44:40,497 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_825376ed-8b75-43ef-b857-fde5f853c117/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i[24046,24059] [2021-11-23 15:44:40,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:44:40,555 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:44:40,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:40 WrapperNode [2021-11-23 15:44:40,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:44:40,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:44:40,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:44:40,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:44:40,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:40" (1/1) ... [2021-11-23 15:44:40,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:40" (1/1) ... [2021-11-23 15:44:40,616 INFO L137 Inliner]: procedures = 126, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2021-11-23 15:44:40,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:44:40,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:44:40,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:44:40,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:44:40,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:40" (1/1) ... [2021-11-23 15:44:40,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:40" (1/1) ... [2021-11-23 15:44:40,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:40" (1/1) ... [2021-11-23 15:44:40,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:40" (1/1) ... [2021-11-23 15:44:40,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:40" (1/1) ... [2021-11-23 15:44:40,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:40" (1/1) ... [2021-11-23 15:44:40,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:40" (1/1) ... [2021-11-23 15:44:40,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:44:40,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:44:40,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:44:40,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:44:40,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:40" (1/1) ... [2021-11-23 15:44:40,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:44:40,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:44:40,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:44:40,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:44:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:44:40,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:44:40,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:44:40,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:44:40,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:44:40,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:44:40,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:44:40,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:44:40,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:44:40,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:44:40,937 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:44:40,939 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:44:40,956 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:44:40,960 INFO L158 Benchmark]: Toolchain (without parser) took 919.21ms. Allocated memory is still 69.2MB. Free memory was 47.3MB in the beginning and 33.1MB in the end (delta: 14.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-11-23 15:44:40,961 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 69.2MB. Free memory was 48.9MB in the beginning and 48.9MB in the end (delta: 48.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:44:40,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.62ms. Allocated memory is still 69.2MB. Free memory was 47.2MB in the beginning and 44.3MB in the end (delta: 2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:44:40,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.90ms. Allocated memory is still 69.2MB. Free memory was 44.3MB in the beginning and 42.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:44:40,963 INFO L158 Benchmark]: Boogie Preprocessor took 68.01ms. Allocated memory is still 69.2MB. Free memory was 42.2MB in the beginning and 40.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:44:40,964 INFO L158 Benchmark]: RCFGBuilder took 269.94ms. Allocated memory is still 69.2MB. Free memory was 40.3MB in the beginning and 33.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:44:40,967 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 69.2MB. Free memory was 48.9MB in the beginning and 48.9MB in the end (delta: 48.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.62ms. Allocated memory is still 69.2MB. Free memory was 47.2MB in the beginning and 44.3MB in the end (delta: 2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.90ms. Allocated memory is still 69.2MB. Free memory was 44.3MB in the beginning and 42.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.01ms. Allocated memory is still 69.2MB. Free memory was 42.2MB in the beginning and 40.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 269.94ms. Allocated memory is still 69.2MB. Free memory was 40.3MB in the beginning and 33.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:44:41,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_825376ed-8b75-43ef-b857-fde5f853c117/bin/ukojak-CwSLpZB5Qu/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 Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable