./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.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_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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_b048b5f5-3346-4091-ab87-758bf8b2c365/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 34e15ef5f231b0d05e024fd024561a8a6f61ae28 ................................................................................................................................................................................................................................................................................................................................................ 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_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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_b048b5f5-3346-4091-ab87-758bf8b2c365/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 34e15ef5f231b0d05e024fd024561a8a6f61ae28 ................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:26:52,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:52,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:52,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:52,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:52,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:52,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:52,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:52,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:52,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:52,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:52,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:52,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:52,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:52,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:52,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:52,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:52,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:52,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:52,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:52,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:52,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:52,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:52,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:52,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:52,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:52,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:52,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:52,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:52,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:52,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:52,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:52,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:52,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:52,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:52,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:52,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:52,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:52,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:52,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:52,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:52,537 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:52,589 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:52,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:52,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:52,591 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:52,591 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:52,591 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:52,591 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:52,591 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:52,592 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:52,592 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:52,592 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:52,592 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:52,592 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:52,593 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:52,593 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:52,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:52,594 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:52,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:52,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:52,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:52,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:52,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:52,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:52,595 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:52,595 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:52,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:52,595 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:52,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:52,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:52,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:52,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:52,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:52,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:52,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:52,602 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:52,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:52,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:52,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:52,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:52,604 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_b048b5f5-3346-4091-ab87-758bf8b2c365/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34e15ef5f231b0d05e024fd024561a8a6f61ae28 [2021-10-11 02:26:52,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:52,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:52,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:52,894 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:52,895 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:52,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c [2021-10-11 02:26:52,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/data/71f0386cc/269cc28856454368a1ce2c5f336a5a7f/FLAG4935d4638 [2021-10-11 02:26:53,407 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:53,407 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c [2021-10-11 02:26:53,414 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/data/71f0386cc/269cc28856454368a1ce2c5f336a5a7f/FLAG4935d4638 [2021-10-11 02:26:53,815 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/data/71f0386cc/269cc28856454368a1ce2c5f336a5a7f [2021-10-11 02:26:53,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:53,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:53,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:53,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:53,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:53,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:53" (1/1) ... [2021-10-11 02:26:53,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2cf724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:53, skipping insertion in model container [2021-10-11 02:26:53,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:53" (1/1) ... [2021-10-11 02:26:53,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:53,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:54,071 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_b048b5f5-3346-4091-ab87-758bf8b2c365/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c[458,471] [2021-10-11 02:26:54,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:54,111 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:54,133 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_b048b5f5-3346-4091-ab87-758bf8b2c365/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c[458,471] [2021-10-11 02:26:54,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:54,175 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:54,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:54 WrapperNode [2021-10-11 02:26:54,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:54,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:54,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:54,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:54,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:54" (1/1) ... [2021-10-11 02:26:54,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:54" (1/1) ... [2021-10-11 02:26:54,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:54,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:54,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:54,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:54,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:54" (1/1) ... [2021-10-11 02:26:54,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:54" (1/1) ... [2021-10-11 02:26:54,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:54" (1/1) ... [2021-10-11 02:26:54,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:54" (1/1) ... [2021-10-11 02:26:54,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:54" (1/1) ... [2021-10-11 02:26:54,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:54" (1/1) ... [2021-10-11 02:26:54,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:54" (1/1) ... [2021-10-11 02:26:54,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:54,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:54,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:54,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:54,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:54" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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 02:26:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:26:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:54,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:54,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:54,568 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-11 02:26:54,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:54 BoogieIcfgContainer [2021-10-11 02:26:54,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:54,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:54,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:54,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:54,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:53" (1/3) ... [2021-10-11 02:26:54,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7e2fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:54, skipping insertion in model container [2021-10-11 02:26:54,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:54" (2/3) ... [2021-10-11 02:26:54,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7e2fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:54, skipping insertion in model container [2021-10-11 02:26:54,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:54" (3/3) ... [2021-10-11 02:26:54,598 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound5.c [2021-10-11 02:26:54,624 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:54,628 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:26:54,647 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:26:54,673 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:54,673 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:54,673 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:54,674 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:54,674 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:54,674 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:54,674 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:54,674 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:54,688 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2021-10-11 02:26:54,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:26:54,693 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:54,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:26:54,694 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:54,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:54,700 INFO L82 PathProgramCache]: Analyzing trace with hash 2639580, now seen corresponding path program 1 times [2021-10-11 02:26:54,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:54,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797169432] [2021-10-11 02:26:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:54,843 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:26:54,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978845631] [2021-10-11 02:26:54,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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 02:26:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:54,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 02:26:54,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:55,109 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 02:26:55,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:55,157 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 02:26:55,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797169432] [2021-10-11 02:26:55,158 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:26:55,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978845631] [2021-10-11 02:26:55,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:55,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:26:55,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240394108] [2021-10-11 02:26:55,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:26:55,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:55,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:26:55,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:55,187 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2021-10-11 02:27:08,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:08,138 INFO L93 Difference]: Finished difference Result 38 states and 51 transitions. [2021-10-11 02:27:08,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:27:08,139 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2021-10-11 02:27:08,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:08,146 INFO L225 Difference]: With dead ends: 38 [2021-10-11 02:27:08,146 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 02:27:08,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:27:08,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 02:27:08,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-11 02:27:08,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:27:08,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-11 02:27:08,182 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4 [2021-10-11 02:27:08,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:08,182 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-11 02:27:08,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:27:08,183 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-11 02:27:08,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:27:08,183 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:08,184 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2021-10-11 02:27:08,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:27:08,394 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:08,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:08,394 INFO L82 PathProgramCache]: Analyzing trace with hash -456145028, now seen corresponding path program 1 times [2021-10-11 02:27:08,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:08,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384267758] [2021-10-11 02:27:08,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:08,410 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:27:08,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [384788902] [2021-10-11 02:27:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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 02:27:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:08,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-11 02:27:08,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:08,627 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 02:27:08,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:27:09,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384267758] [2021-10-11 02:27:09,335 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:27:09,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384788902] [2021-10-11 02:27:09,336 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2021-10-11 02:27:09,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [587122467] [2021-10-11 02:27:09,360 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-11 02:27:09,360 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:27:09,365 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:27:09,372 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:27:09,372 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:27:09,460 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:27:09,473 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:27:09,860 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:27:10,067 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2021-10-11 02:27:10,209 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-10-11 02:27:10,437 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2021-10-11 02:27:10,617 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-10-11 02:27:10,619 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:27:10,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:10,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-11 02:27:10,620 ERROR L205 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2021-10-11 02:27:10,620 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:27:10,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:27:10,830 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 02:27:10,831 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2021-10-11 02:27:10,838 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-10-11 02:27:10,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:10 BoogieIcfgContainer [2021-10-11 02:27:10,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:10,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:10,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:10,839 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:10,840 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:54" (3/4) ... [2021-10-11 02:27:10,843 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:27:10,844 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:10,847 INFO L168 Benchmark]: Toolchain (without parser) took 17024.51 ms. Allocated memory was 107.0 MB in the beginning and 151.0 MB in the end (delta: 44.0 MB). Free memory was 76.3 MB in the beginning and 80.0 MB in the end (delta: -3.6 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:10,849 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 107.0 MB. Free memory was 64.7 MB in the beginning and 64.7 MB in the end (delta: 53.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:10,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.37 ms. Allocated memory was 107.0 MB in the beginning and 151.0 MB in the end (delta: 44.0 MB). Free memory was 76.1 MB in the beginning and 124.5 MB in the end (delta: -48.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:10,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.36 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 122.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:10,853 INFO L168 Benchmark]: Boogie Preprocessor took 23.30 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 121.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:10,859 INFO L168 Benchmark]: RCFGBuilder took 332.60 ms. Allocated memory is still 151.0 MB. Free memory was 121.9 MB in the beginning and 105.6 MB in the end (delta: 16.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:10,859 INFO L168 Benchmark]: TraceAbstraction took 16265.97 ms. Allocated memory is still 151.0 MB. Free memory was 105.1 MB in the beginning and 80.0 MB in the end (delta: 25.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:10,860 INFO L168 Benchmark]: Witness Printer took 5.70 ms. Allocated memory is still 151.0 MB. Free memory was 80.0 MB in the beginning and 80.0 MB in the end (delta: 2.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:10,869 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 107.0 MB. Free memory was 64.7 MB in the beginning and 64.7 MB in the end (delta: 53.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 353.37 ms. Allocated memory was 107.0 MB in the beginning and 151.0 MB in the end (delta: 44.0 MB). Free memory was 76.1 MB in the beginning and 124.5 MB in the end (delta: -48.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.36 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 122.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.30 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 121.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 332.60 ms. Allocated memory is still 151.0 MB. Free memory was 121.9 MB in the beginning and 105.6 MB in the end (delta: 16.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16265.97 ms. Allocated memory is still 151.0 MB. Free memory was 105.1 MB in the beginning and 80.0 MB in the end (delta: 25.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.70 ms. Allocated memory is still 151.0 MB. Free memory was 80.0 MB in the beginning and 80.0 MB in the end (delta: 2.6 kB). There was no memory consumed. 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: 16.1s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 28 SDslu, 20 SDs, 0 SdLazy, 19 SolverSat, 17 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 12.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s 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 02:27:13,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:13,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:13,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:13,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:13,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:13,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:13,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:13,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:13,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:13,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:13,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:13,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:13,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:13,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:13,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:13,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:13,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:13,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:13,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:13,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:13,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:13,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:13,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:13,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:13,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:13,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:13,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:13,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:13,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:13,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:13,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:13,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:13,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:13,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:13,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:13,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:13,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:13,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:13,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:13,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:13,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:27:13,643 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:13,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:13,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:13,646 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:13,646 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:13,646 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:13,646 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:13,647 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:13,647 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:13,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:13,650 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:13,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:13,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:13,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:13,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:13,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:13,651 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:13,651 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:27:13,651 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:27:13,652 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:13,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:13,652 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:13,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:13,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:13,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:27:13,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:13,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:13,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:13,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:13,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:13,654 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:27:13,654 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:27:13,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:13,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:13,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:13,656 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_b048b5f5-3346-4091-ab87-758bf8b2c365/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34e15ef5f231b0d05e024fd024561a8a6f61ae28 [2021-10-11 02:27:14,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:14,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:14,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:14,086 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:14,087 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:14,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c [2021-10-11 02:27:14,163 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/data/e51be693d/ad1786948f1349c6aabeb67329c5ed83/FLAGab4105c0c [2021-10-11 02:27:14,668 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:14,669 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c [2021-10-11 02:27:14,675 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/data/e51be693d/ad1786948f1349c6aabeb67329c5ed83/FLAGab4105c0c [2021-10-11 02:27:15,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/bin/utaipan-WLngWcDbfI/data/e51be693d/ad1786948f1349c6aabeb67329c5ed83 [2021-10-11 02:27:15,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:15,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:15,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:15,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:15,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:15,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@303a1341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15, skipping insertion in model container [2021-10-11 02:27:15,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:15,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:15,196 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_b048b5f5-3346-4091-ab87-758bf8b2c365/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c[458,471] [2021-10-11 02:27:15,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:15,227 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:15,241 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_b048b5f5-3346-4091-ab87-758bf8b2c365/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound5.c[458,471] [2021-10-11 02:27:15,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:15,264 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:15,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15 WrapperNode [2021-10-11 02:27:15,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:15,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:15,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:15,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:15,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:15,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:15,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:15,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:15,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:15,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:15,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:15,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:15,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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 02:27:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:27:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:15,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:16,326 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:16,326 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-11 02:27:16,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:16 BoogieIcfgContainer [2021-10-11 02:27:16,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:16,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:16,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:16,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:16,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:15" (1/3) ... [2021-10-11 02:27:16,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e2c59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:16, skipping insertion in model container [2021-10-11 02:27:16,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (2/3) ... [2021-10-11 02:27:16,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e2c59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:16, skipping insertion in model container [2021-10-11 02:27:16,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:16" (3/3) ... [2021-10-11 02:27:16,335 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound5.c [2021-10-11 02:27:16,350 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:16,353 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:27:16,364 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:27:16,400 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:16,400 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:16,400 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:16,400 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:16,401 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:16,401 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:16,401 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:16,401 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:16,416 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2021-10-11 02:27:16,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:27:16,421 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:16,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:16,422 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:16,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:16,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-11 02:27:16,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:16,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193887947] [2021-10-11 02:27:16,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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 02:27:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:16,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:27:16,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:16,675 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 02:27:16,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:16,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193887947] [2021-10-11 02:27:16,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:16,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:27:16,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834568374] [2021-10-11 02:27:16,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:27:16,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:16,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:27:16,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:27:16,700 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2021-10-11 02:27:16,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:16,717 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-10-11 02:27:16,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:27:16,719 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-10-11 02:27:16,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:16,731 INFO L225 Difference]: With dead ends: 31 [2021-10-11 02:27:16,736 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 02:27:16,739 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 02:27:16,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 02:27:16,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-11 02:27:16,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 02:27:16,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-11 02:27:16,782 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-10-11 02:27:16,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:16,783 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-11 02:27:16,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:27:16,783 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-11 02:27:16,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:27:16,784 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:16,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:17,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:27:17,006 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:17,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:17,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-11 02:27:17,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:17,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509229711] [2021-10-11 02:27:17,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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 02:27:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:17,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:27:17,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:17,253 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 02:27:17,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:17,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509229711] [2021-10-11 02:27:17,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:17,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:27:17,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467292883] [2021-10-11 02:27:17,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:27:17,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:17,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:27:17,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:27:17,258 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2021-10-11 02:27:18,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:18,427 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-10-11 02:27:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:27:18,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:27:18,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:18,429 INFO L225 Difference]: With dead ends: 23 [2021-10-11 02:27:18,429 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 02:27:18,430 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 02:27:18,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 02:27:18,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-11 02:27:18,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:27:18,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-11 02:27:18,439 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-10-11 02:27:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:18,439 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-11 02:27:18,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:27:18,440 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-11 02:27:18,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:27:18,444 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:18,445 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:18,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:27:18,661 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:18,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:18,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1864186656, now seen corresponding path program 1 times [2021-10-11 02:27:18,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:18,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713910735] [2021-10-11 02:27:18,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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 02:27:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:18,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:27:18,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:19,266 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 02:27:19,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:27:20,663 WARN L197 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-10-11 02:27:21,748 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 02:27:21,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713910735] [2021-10-11 02:27:21,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2028405085] [2021-10-11 02:27:21,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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 02:27:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:22,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:27:22,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:22,267 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 02:27:22,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:27:23,381 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 02:27:23,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111567323] [2021-10-11 02:27:23,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b048b5f5-3346-4091-ab87-758bf8b2c365/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 02:27:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:23,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 02:27:23,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:24,373 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 02:27:24,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:27:25,453 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 02:27:25,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-11 02:27:25,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5, 4, 6, 4] total 8 [2021-10-11 02:27:25,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459438288] [2021-10-11 02:27:25,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 02:27:25,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:25,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 02:27:25,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:27:25,456 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2021-10-11 02:27:26,334 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-10-11 02:27:29,886 WARN L197 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 31 [2021-10-11 02:27:30,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:30,627 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-10-11 02:27:30,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:27:30,627 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2021-10-11 02:27:30,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:30,628 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:27:30,628 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:27:30,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 7 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-11 02:27:30,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:27:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:27:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:27:30,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:27:30,630 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-11 02:27:30,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:30,630 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:27:30,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 02:27:30,630 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:27:30,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:27:31,232 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 02:27:31,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:27:35,399 WARN L197 SmtUtils]: Spent 4.06 s on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2021-10-11 02:27:38,269 WARN L197 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2021-10-11 02:27:38,271 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:27:38,271 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 02:27:38,272 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 02:27:38,272 INFO L262 CegarLoopResult]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2021-10-11 02:27:38,272 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-10-11 02:27:38,272 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2021-10-11 02:27:38,272 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-11 02:27:38,272 INFO L265 CegarLoopResult]: At program point L38(lines 17 39) the Hoare annotation is: true [2021-10-11 02:27:38,272 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:27:38,272 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:27:38,272 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:27:38,272 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 02:27:38,273 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-10-11 02:27:38,273 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 02:27:38,273 INFO L262 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2021-10-11 02:27:38,273 INFO L262 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-10-11 02:27:38,273 INFO L265 CegarLoopResult]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2021-10-11 02:27:38,284 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 02:27:38,290 INFO L168 Benchmark]: Toolchain (without parser) took 23257.88 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 51.2 MB in the beginning and 32.7 MB in the end (delta: 18.5 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:38,290 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 69.2 MB. Free memory was 50.6 MB in the beginning and 50.6 MB in the end (delta: 55.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:38,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.58 ms. Allocated memory is still 69.2 MB. Free memory was 51.0 MB in the beginning and 40.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:38,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.69 ms. Allocated memory is still 69.2 MB. Free memory was 40.6 MB in the beginning and 52.7 MB in the end (delta: -12.1 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:38,293 INFO L168 Benchmark]: Boogie Preprocessor took 44.83 ms. Allocated memory is still 69.2 MB. Free memory was 52.7 MB in the beginning and 51.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:38,293 INFO L168 Benchmark]: RCFGBuilder took 959.05 ms. Allocated memory is still 69.2 MB. Free memory was 51.5 MB in the beginning and 38.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:38,294 INFO L168 Benchmark]: TraceAbstraction took 21958.98 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 38.4 MB in the beginning and 32.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:38,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 69.2 MB. Free memory was 50.6 MB in the beginning and 50.6 MB in the end (delta: 55.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 232.58 ms. Allocated memory is still 69.2 MB. Free memory was 51.0 MB in the beginning and 40.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.69 ms. Allocated memory is still 69.2 MB. Free memory was 40.6 MB in the beginning and 52.7 MB in the end (delta: -12.1 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.83 ms. Allocated memory is still 69.2 MB. Free memory was 52.7 MB in the beginning and 51.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 959.05 ms. Allocated memory is still 69.2 MB. Free memory was 51.5 MB in the beginning and 38.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21958.98 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 38.4 MB in the beginning and 32.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 27.9 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...