./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40d3dae4aed31dfbf762bbd7fd9b566dada020a0 ................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40d3dae4aed31dfbf762bbd7fd9b566dada020a0 .................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:24:14,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:14,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:14,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:14,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:14,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:14,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:14,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:14,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:14,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:14,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:14,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:14,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:14,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:14,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:14,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:14,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:14,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:14,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:14,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:14,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:14,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:14,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:14,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:14,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:14,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:14,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:14,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:14,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:14,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:14,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:14,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:14,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:14,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:14,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:14,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:14,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:14,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:14,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:14,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:14,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:14,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:24:14,911 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:14,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:14,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:14,913 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:14,914 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:14,914 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:14,914 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:24:14,915 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:14,915 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:14,915 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:24:14,916 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:24:14,916 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:14,917 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:24:14,917 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:24:14,917 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:24:14,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:14,918 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:24:14,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:24:14,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:24:14,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:14,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:24:14,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:14,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:24:14,920 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:24:14,920 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:24:14,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:24:14,920 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:14,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:24:14,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:14,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:14,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:14,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:14,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:14,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:24:14,922 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:24:14,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:24:14,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:24:14,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:14,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:14,923 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40d3dae4aed31dfbf762bbd7fd9b566dada020a0 [2021-10-11 02:24:15,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:15,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:15,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:15,272 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:15,274 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:15,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c [2021-10-11 02:24:15,378 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/data/5b3db440e/142ceb0cc0fb45dc9261c14c6766be27/FLAG384ab8710 [2021-10-11 02:24:15,835 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:15,838 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c [2021-10-11 02:24:15,863 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/data/5b3db440e/142ceb0cc0fb45dc9261c14c6766be27/FLAG384ab8710 [2021-10-11 02:24:16,218 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/data/5b3db440e/142ceb0cc0fb45dc9261c14c6766be27 [2021-10-11 02:24:16,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:16,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:16,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:16,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:16,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:16,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ebf9e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16, skipping insertion in model container [2021-10-11 02:24:16,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:16,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:16,429 WARN L226 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_b13f9232-2955-448e-b49c-d74d2ac35e7d/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c[458,471] [2021-10-11 02:24:16,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:16,453 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:16,465 WARN L226 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_b13f9232-2955-448e-b49c-d74d2ac35e7d/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c[458,471] [2021-10-11 02:24:16,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:16,485 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:16,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16 WrapperNode [2021-10-11 02:24:16,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:16,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:16,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:16,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:16,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:16,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:16,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:16,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:16,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... [2021-10-11 02:24:16,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:16,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:16,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:16,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:16,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:24:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:24:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:16,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:17,030 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:17,030 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-11 02:24:17,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:17 BoogieIcfgContainer [2021-10-11 02:24:17,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:17,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:17,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:17,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:17,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:16" (1/3) ... [2021-10-11 02:24:17,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4daf32b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:17, skipping insertion in model container [2021-10-11 02:24:17,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:16" (2/3) ... [2021-10-11 02:24:17,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4daf32b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:17, skipping insertion in model container [2021-10-11 02:24:17,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:17" (3/3) ... [2021-10-11 02:24:17,041 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound2.c [2021-10-11 02:24:17,070 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:17,073 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:24:17,085 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:24:17,108 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:17,109 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:24:17,109 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:17,109 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:17,109 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:17,109 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:17,109 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:17,110 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:17,122 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2021-10-11 02:24:17,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:24:17,127 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:17,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:24:17,128 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:17,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:17,134 INFO L82 PathProgramCache]: Analyzing trace with hash 2639580, now seen corresponding path program 1 times [2021-10-11 02:24:17,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:17,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582280719] [2021-10-11 02:24:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:17,252 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:24:17,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1373560104] [2021-10-11 02:24:17,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:24:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:17,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 02:24:17,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:17,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:17,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:24:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:17,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582280719] [2021-10-11 02:24:17,457 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:24:17,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373560104] [2021-10-11 02:24:17,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:17,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:24:17,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242496379] [2021-10-11 02:24:17,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:24:17,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:17,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:24:17,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:24:17,496 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2021-10-11 02:24:21,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:21,693 INFO L93 Difference]: Finished difference Result 38 states and 51 transitions. [2021-10-11 02:24:21,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:24:21,695 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2021-10-11 02:24:21,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:21,701 INFO L225 Difference]: With dead ends: 38 [2021-10-11 02:24:21,702 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 02:24:21,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:24:21,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 02:24:21,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-11 02:24:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:24:21,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-11 02:24:21,747 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4 [2021-10-11 02:24:21,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:21,748 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-11 02:24:21,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:24:21,748 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-11 02:24:21,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:24:21,749 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:21,749 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2021-10-11 02:24:21,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:24:21,968 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:21,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:21,968 INFO L82 PathProgramCache]: Analyzing trace with hash -456145028, now seen corresponding path program 1 times [2021-10-11 02:24:21,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:21,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573099588] [2021-10-11 02:24:21,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:21,995 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:24:21,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150347213] [2021-10-11 02:24:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:24:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:22,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-11 02:24:22,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:22,220 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:22,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:24:24,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573099588] [2021-10-11 02:24:24,408 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:24:24,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150347213] [2021-10-11 02:24:24,409 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2021-10-11 02:24:24,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1406603002] [2021-10-11 02:24:24,431 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-11 02:24:24,431 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:24:24,436 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:24:24,442 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:24:24,443 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:24:24,536 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:24:24,600 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:24:25,123 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:24:25,369 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2021-10-11 02:24:25,537 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-10-11 02:24:25,747 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2021-10-11 02:24:25,973 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-10-11 02:24:25,975 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:24:25,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:25,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-11 02:24:25,976 ERROR L205 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2021-10-11 02:24:25,976 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:24:26,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:24:26,185 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2021-10-11 02:24:26,185 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2021-10-11 02:24:26,195 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-10-11 02:24:26,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:24:26 BoogieIcfgContainer [2021-10-11 02:24:26,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:24:26,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:24:26,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:24:26,197 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:24:26,197 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:17" (3/4) ... [2021-10-11 02:24:26,201 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:24:26,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:24:26,203 INFO L168 Benchmark]: Toolchain (without parser) took 9980.27 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 63.1 MB in the beginning and 63.1 MB in the end (delta: -45.9 kB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:26,204 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory was 48.2 MB in the beginning and 48.1 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:26,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.99 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 62.8 MB in the beginning and 89.5 MB in the end (delta: -26.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:26,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.95 ms. Allocated memory is still 113.2 MB. Free memory was 89.5 MB in the beginning and 88.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:26,206 INFO L168 Benchmark]: Boogie Preprocessor took 22.50 ms. Allocated memory is still 113.2 MB. Free memory was 88.3 MB in the beginning and 86.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:26,207 INFO L168 Benchmark]: RCFGBuilder took 484.33 ms. Allocated memory is still 113.2 MB. Free memory was 86.8 MB in the beginning and 70.6 MB in the end (delta: 16.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:26,208 INFO L168 Benchmark]: TraceAbstraction took 9161.91 ms. Allocated memory is still 113.2 MB. Free memory was 70.1 MB in the beginning and 63.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:26,208 INFO L168 Benchmark]: Witness Printer took 4.98 ms. Allocated memory is still 113.2 MB. Free memory was 63.1 MB in the beginning and 63.1 MB in the end (delta: 2.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:26,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory was 48.2 MB in the beginning and 48.1 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.99 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 62.8 MB in the beginning and 89.5 MB in the end (delta: -26.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.95 ms. Allocated memory is still 113.2 MB. Free memory was 89.5 MB in the beginning and 88.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.50 ms. Allocated memory is still 113.2 MB. Free memory was 88.3 MB in the beginning and 86.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 484.33 ms. Allocated memory is still 113.2 MB. Free memory was 86.8 MB in the beginning and 70.6 MB in the end (delta: 16.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9161.91 ms. Allocated memory is still 113.2 MB. Free memory was 70.1 MB in the beginning and 63.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.98 ms. Allocated memory is still 113.2 MB. Free memory was 63.1 MB in the beginning and 63.1 MB in the end (delta: 2.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L18] short k; [L19] long long y, x, c; [L20] k = __VERIFIER_nondet_short() [L7] COND TRUE !cond [L23] y = 0 [L24] x = 0 [L25] c = 0 [L27] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y + x [L27] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y + x [L27] COND TRUE 1 [L10] COND TRUE !(cond) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 9.0s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 26 SDslu, 21 SDs, 0 SdLazy, 19 SolverSat, 17 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 6 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:24:28,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:28,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:28,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:28,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:28,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:28,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:28,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:28,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:28,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:28,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:28,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:28,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:28,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:28,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:28,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:28,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:28,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:28,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:28,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:28,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:28,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:28,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:28,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:28,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:28,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:28,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:28,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:28,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:28,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:28,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:28,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:28,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:28,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:28,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:28,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:28,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:28,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:28,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:28,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:28,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:28,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:24:28,958 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:28,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:28,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:28,960 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:28,960 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:28,960 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:28,961 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:28,961 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:28,961 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:28,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:28,964 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:24:28,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:24:28,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:28,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:24:28,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:28,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:24:28,965 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:24:28,966 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:24:28,966 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:24:28,966 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:24:28,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:24:28,966 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:28,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:24:28,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:28,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:24:28,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:28,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:28,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:28,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:28,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:24:28,969 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:24:28,969 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:24:28,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:24:28,969 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:28,970 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:28,970 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_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40d3dae4aed31dfbf762bbd7fd9b566dada020a0 [2021-10-11 02:24:29,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:29,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:29,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:29,422 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:29,423 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:29,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c [2021-10-11 02:24:29,502 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/data/7fd0b4016/18a11533840f4b9ca12e0564a77e7d28/FLAG8baca07ab [2021-10-11 02:24:30,064 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:30,065 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c [2021-10-11 02:24:30,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/data/7fd0b4016/18a11533840f4b9ca12e0564a77e7d28/FLAG8baca07ab [2021-10-11 02:24:30,390 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/data/7fd0b4016/18a11533840f4b9ca12e0564a77e7d28 [2021-10-11 02:24:30,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:30,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:30,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:30,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:30,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:30,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:30" (1/1) ... [2021-10-11 02:24:30,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388151a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30, skipping insertion in model container [2021-10-11 02:24:30,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:30" (1/1) ... [2021-10-11 02:24:30,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:30,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:30,568 WARN L226 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_b13f9232-2955-448e-b49c-d74d2ac35e7d/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c[458,471] [2021-10-11 02:24:30,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:30,597 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:30,609 WARN L226 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_b13f9232-2955-448e-b49c-d74d2ac35e7d/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound2.c[458,471] [2021-10-11 02:24:30,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:30,631 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:30,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30 WrapperNode [2021-10-11 02:24:30,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:30,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:30,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:30,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:30,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30" (1/1) ... [2021-10-11 02:24:30,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30" (1/1) ... [2021-10-11 02:24:30,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:30,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:30,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:30,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:30,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30" (1/1) ... [2021-10-11 02:24:30,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30" (1/1) ... [2021-10-11 02:24:30,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30" (1/1) ... [2021-10-11 02:24:30,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30" (1/1) ... [2021-10-11 02:24:30,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30" (1/1) ... [2021-10-11 02:24:30,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30" (1/1) ... [2021-10-11 02:24:30,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30" (1/1) ... [2021-10-11 02:24:30,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:30,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:30,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:30,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:30,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:30,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:24:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:24:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:30,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:31,806 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:31,807 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-11 02:24:31,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:31 BoogieIcfgContainer [2021-10-11 02:24:31,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:31,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:31,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:31,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:31,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:30" (1/3) ... [2021-10-11 02:24:31,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8474f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:31, skipping insertion in model container [2021-10-11 02:24:31,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:30" (2/3) ... [2021-10-11 02:24:31,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8474f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:31, skipping insertion in model container [2021-10-11 02:24:31,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:31" (3/3) ... [2021-10-11 02:24:31,817 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound2.c [2021-10-11 02:24:31,831 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:31,834 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:24:31,845 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:24:31,880 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:31,880 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:24:31,881 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:31,881 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:31,881 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:31,881 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:31,881 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:31,882 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:31,893 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2021-10-11 02:24:31,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:24:31,898 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:31,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:31,899 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:31,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:31,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-11 02:24:31,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:24:31,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102851978] [2021-10-11 02:24:31,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:24:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:32,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:24:32,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:32,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:32,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:24:32,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102851978] [2021-10-11 02:24:32,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:32,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:32,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037849380] [2021-10-11 02:24:32,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:24:32,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:24:32,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:24:32,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:24:32,183 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2021-10-11 02:24:32,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:32,214 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-10-11 02:24:32,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:24:32,216 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-10-11 02:24:32,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:32,229 INFO L225 Difference]: With dead ends: 31 [2021-10-11 02:24:32,230 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 02:24:32,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:24:32,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 02:24:32,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-11 02:24:32,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 02:24:32,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-11 02:24:32,271 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-10-11 02:24:32,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:32,272 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-11 02:24:32,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:24:32,272 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-11 02:24:32,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:24:32,273 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:32,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:32,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:24:32,491 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:32,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:32,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-11 02:24:32,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:24:32,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318181278] [2021-10-11 02:24:32,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:24:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:32,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:24:32,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:32,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:32,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:24:32,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318181278] [2021-10-11 02:24:32,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:32,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:24:32,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199813676] [2021-10-11 02:24:32,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:24:32,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:24:32,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:24:32,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:24:32,814 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2021-10-11 02:24:33,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:33,672 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-10-11 02:24:33,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:24:33,673 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:24:33,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:33,674 INFO L225 Difference]: With dead ends: 23 [2021-10-11 02:24:33,674 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 02:24:33,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:24:33,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 02:24:33,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-11 02:24:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:24:33,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-11 02:24:33,679 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-10-11 02:24:33,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:33,679 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-11 02:24:33,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:24:33,680 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-11 02:24:33,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:24:33,680 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:33,681 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:33,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:24:33,900 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:33,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:33,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1864186656, now seen corresponding path program 1 times [2021-10-11 02:24:33,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:24:33,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552502214] [2021-10-11 02:24:33,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:24:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:34,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:24:34,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:34,359 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-10-11 02:24:34,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:34,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:24:36,107 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-10-11 02:24:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:24:37,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552502214] [2021-10-11 02:24:37,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1411165806] [2021-10-11 02:24:37,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:24:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:37,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:24:37,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:37,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:37,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:24:39,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:24:39,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929793305] [2021-10-11 02:24:39,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b13f9232-2955-448e-b49c-d74d2ac35e7d/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:24:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:39,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 02:24:39,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:39,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:39,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:24:41,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:24:41,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-11 02:24:41,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5, 4, 6, 4] total 8 [2021-10-11 02:24:41,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5683236] [2021-10-11 02:24:41,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 02:24:41,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:24:41,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 02:24:41,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:24:41,560 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2021-10-11 02:24:42,227 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-10-11 02:24:45,161 WARN L197 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 31 [2021-10-11 02:24:45,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:45,918 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-10-11 02:24:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:24:45,919 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2021-10-11 02:24:45,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:45,919 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:24:45,919 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:24:45,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 7 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-11 02:24:45,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:24:45,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:24:45,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:24:45,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:24:45,921 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-11 02:24:45,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:45,921 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:24:45,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 02:24:45,921 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:24:45,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:24:46,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 cvc4 --incremental --print-success --lang smt [2021-10-11 02:24:46,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:24:49,836 WARN L197 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2021-10-11 02:24:52,222 WARN L197 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2021-10-11 02:24:52,224 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:24:52,225 INFO L258 CegarLoopResult]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv0 32))) (.cse1 (or (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (= (_ bv0 32) ULTIMATE.start_assume_abort_if_not_~cond)))) (or (and (= .cse0 ULTIMATE.start_main_~x~0) .cse1 (= .cse0 ULTIMATE.start_main_~y~0)) (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= .cse0 (bvadd (bvneg (bvmul (bvmul ((_ sign_extend 32) (_ bv3 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~x~0) (bvneg (bvmul (bvmul (bvmul ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvneg ULTIMATE.start_main_~y~0))) .cse1))) [2021-10-11 02:24:52,225 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 02:24:52,226 INFO L262 CegarLoopResult]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2021-10-11 02:24:52,226 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-10-11 02:24:52,226 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2021-10-11 02:24:52,226 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-11 02:24:52,226 INFO L265 CegarLoopResult]: At program point L38(lines 17 39) the Hoare annotation is: true [2021-10-11 02:24:52,226 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:24:52,226 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:24:52,226 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:24:52,226 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 02:24:52,226 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-10-11 02:24:52,227 INFO L258 CegarLoopResult]: At program point L10-2(lines 30 31) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= ((_ sign_extend 32) (_ bv0 32)) (bvadd (bvneg (bvmul (bvmul ((_ sign_extend 32) (_ bv3 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~x~0) (bvneg (bvmul (bvmul (bvmul ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvneg ULTIMATE.start_main_~y~0))) (or (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (= (_ bv0 32) ULTIMATE.start_assume_abort_if_not_~cond))) [2021-10-11 02:24:52,227 INFO L262 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2021-10-11 02:24:52,227 INFO L262 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-10-11 02:24:52,227 INFO L265 CegarLoopResult]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2021-10-11 02:24:52,233 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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) [2021-10-11 02:24:52,237 INFO L168 Benchmark]: Toolchain (without parser) took 21842.18 ms. Allocated memory was 71.3 MB in the beginning and 102.8 MB in the end (delta: 31.5 MB). Free memory was 52.8 MB in the beginning and 59.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:52,238 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 71.3 MB. Free memory was 52.2 MB in the beginning and 52.2 MB in the end (delta: 55.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:52,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.74 ms. Allocated memory is still 71.3 MB. Free memory was 52.7 MB in the beginning and 42.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:52,239 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.11 ms. Allocated memory is still 71.3 MB. Free memory was 42.4 MB in the beginning and 54.8 MB in the end (delta: -12.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:52,240 INFO L168 Benchmark]: Boogie Preprocessor took 50.88 ms. Allocated memory is still 71.3 MB. Free memory was 54.8 MB in the beginning and 53.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:52,240 INFO L168 Benchmark]: RCFGBuilder took 1048.52 ms. Allocated memory is still 71.3 MB. Free memory was 53.6 MB in the beginning and 40.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:52,242 INFO L168 Benchmark]: TraceAbstraction took 20425.59 ms. Allocated memory was 71.3 MB in the beginning and 102.8 MB in the end (delta: 31.5 MB). Free memory was 40.5 MB in the beginning and 59.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:52,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 71.3 MB. Free memory was 52.2 MB in the beginning and 52.2 MB in the end (delta: 55.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 236.74 ms. Allocated memory is still 71.3 MB. Free memory was 52.7 MB in the beginning and 42.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.11 ms. Allocated memory is still 71.3 MB. Free memory was 42.4 MB in the beginning and 54.8 MB in the end (delta: -12.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.88 ms. Allocated memory is still 71.3 MB. Free memory was 54.8 MB in the beginning and 53.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1048.52 ms. Allocated memory is still 71.3 MB. Free memory was 53.6 MB in the beginning and 40.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20425.59 ms. Allocated memory was 71.3 MB in the beginning and 102.8 MB in the end (delta: 31.5 MB). Free memory was 40.5 MB in the beginning and 59.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: 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 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...