./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/rule60_list.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/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_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/rule60_list.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/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_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/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 057ace51c51df31e3d76df060fee6a035219068ccdea21d39f1ea3a0064d5b3d --- 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 16:50:52,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:50:52,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:50:52,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:50:52,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:50:52,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:50:52,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:50:52,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:50:52,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:50:52,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:50:52,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:50:52,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:50:52,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:50:52,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:50:52,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:50:52,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:50:52,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:50:52,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:50:52,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:50:52,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:50:52,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:50:52,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:50:52,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:50:52,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:50:52,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:50:52,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:50:52,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:50:52,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:50:52,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:50:52,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:50:52,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:50:52,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:50:52,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:50:52,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:50:52,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:50:52,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:50:52,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:50:52,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:50:52,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:50:52,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:50:52,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:50:52,683 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:50:52,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:50:52,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:50:52,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:50:52,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:50:52,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:50:52,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:50:52,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:50:52,718 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:50:52,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:50:52,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:50:52,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:50:52,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:50:52,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:50:52,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:50:52,719 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:50:52,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:50:52,719 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:50:52,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:50:52,720 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:50:52,720 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:50:52,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:50:52,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:50:52,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:50:52,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:50:52,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:50:52,721 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:50:52,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:50:52,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:50:52,722 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_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 057ace51c51df31e3d76df060fee6a035219068ccdea21d39f1ea3a0064d5b3d [2022-10-17 16:50:53,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:50:53,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:50:53,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:50:53,081 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:50:53,083 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:50:53,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/ldv-regression/rule60_list.i [2022-10-17 16:50:53,167 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/data/ebbbe794a/0385fb3cb4e44633b060145167c86c28/FLAGbf9504400 [2022-10-17 16:50:53,734 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:50:53,735 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/sv-benchmarks/c/ldv-regression/rule60_list.i [2022-10-17 16:50:53,748 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/data/ebbbe794a/0385fb3cb4e44633b060145167c86c28/FLAGbf9504400 [2022-10-17 16:50:54,007 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/data/ebbbe794a/0385fb3cb4e44633b060145167c86c28 [2022-10-17 16:50:54,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:50:54,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:50:54,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:50:54,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:50:54,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:50:54,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9c811c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54, skipping insertion in model container [2022-10-17 16:50:54,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:50:54,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:50:54,308 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_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/sv-benchmarks/c/ldv-regression/rule60_list.i[291,304] [2022-10-17 16:50:54,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:50:54,524 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:50:54,536 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_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/sv-benchmarks/c/ldv-regression/rule60_list.i[291,304] [2022-10-17 16:50:54,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:50:54,592 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:50:54,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54 WrapperNode [2022-10-17 16:50:54,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:50:54,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:50:54,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:50:54,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:50:54,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,655 INFO L138 Inliner]: procedures = 124, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2022-10-17 16:50:54,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:50:54,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:50:54,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:50:54,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:50:54,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,691 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:50:54,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:50:54,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:50:54,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:50:54,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:50:54" (1/1) ... [2022-10-17 16:50:54,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:50:54,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:50:54,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:50:54,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:50:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:50:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:50:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:50:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:50:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-17 16:50:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-17 16:50:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 16:50:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2022-10-17 16:50:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2022-10-17 16:50:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:50:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:50:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:50:54,888 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:50:54,890 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:50:55,047 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:50:55,079 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:50:55,080 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:50:55,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:50:55 BoogieIcfgContainer [2022-10-17 16:50:55,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:50:55,083 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:50:55,084 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:50:55,094 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:50:55,094 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:50:55" (1/1) ... [2022-10-17 16:50:55,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:50:55,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:55,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2022-10-17 16:50:55,183 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-10-17 16:50:55,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:50:55,202 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:55,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:50:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:56,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 22 transitions. [2022-10-17 16:50:56,145 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-10-17 16:50:56,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:50:56,146 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:56,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:56,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:50:56,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 20 transitions. [2022-10-17 16:50:56,785 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-10-17 16:50:56,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:50:56,786 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:50:56,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:50:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:50:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:50:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:50:57,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 13 states and 14 transitions. [2022-10-17 16:50:57,599 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-10-17 16:50:57,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:50:57,600 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2022-10-17 16:50:57,612 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:50:57,685 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:50:57,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:50:57 ImpRootNode [2022-10-17 16:50:57,698 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:50:57,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:50:57,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:50:57,700 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:50:57,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:50:55" (3/4) ... [2022-10-17 16:50:57,704 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:50:57,711 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2022-10-17 16:50:57,711 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __blast_assert [2022-10-17 16:50:57,718 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-10-17 16:50:57,718 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-10-17 16:50:57,718 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:50:57,718 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:50:57,779 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:50:57,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:50:57,780 INFO L158 Benchmark]: Toolchain (without parser) took 3769.45ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 54.0MB in the beginning and 74.0MB in the end (delta: -20.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:50:57,781 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 69.2MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:50:57,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 581.13ms. Allocated memory is still 83.9MB. Free memory was 53.8MB in the beginning and 51.7MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:50:57,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.13ms. Allocated memory is still 83.9MB. Free memory was 51.5MB in the beginning and 49.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:50:57,786 INFO L158 Benchmark]: Boogie Preprocessor took 37.40ms. Allocated memory is still 83.9MB. Free memory was 49.8MB in the beginning and 48.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:50:57,787 INFO L158 Benchmark]: RCFGBuilder took 385.13ms. Allocated memory is still 83.9MB. Free memory was 48.6MB in the beginning and 58.3MB in the end (delta: -9.7MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-10-17 16:50:57,788 INFO L158 Benchmark]: CodeCheck took 2614.96ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 58.3MB in the beginning and 76.1MB in the end (delta: -17.8MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2022-10-17 16:50:57,789 INFO L158 Benchmark]: Witness Printer took 80.58ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 74.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:50:57,792 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 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 57 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 26 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 285 GetRequests, 249 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 - PositiveResult [Line: 6]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 69.2MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 581.13ms. Allocated memory is still 83.9MB. Free memory was 53.8MB in the beginning and 51.7MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.13ms. Allocated memory is still 83.9MB. Free memory was 51.5MB in the beginning and 49.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.40ms. Allocated memory is still 83.9MB. Free memory was 49.8MB in the beginning and 48.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 385.13ms. Allocated memory is still 83.9MB. Free memory was 48.6MB in the beginning and 58.3MB in the end (delta: -9.7MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * CodeCheck took 2614.96ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 58.3MB in the beginning and 76.1MB in the end (delta: -17.8MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * Witness Printer took 80.58ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 74.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:50:57,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279ee5a2-cabe-41fe-a2cb-1372d9cfe696/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE